Consulta: subjectFacets:"Research methodology"
Registros recuperados: 193
Data/hora: 09/06/2024 19:14:26

Determination of phosphorus source coefficients for organic phosphorus sources: Laboratory studies
Provedor de dados: 18
Autores: Leytem, A.B.; Sims, J.T.; Coale, F.J.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2004
URL: http://eprints.nwisrl.ars.usda.gov/176/1/1120.pdf

Operational characteristics of the watermark model 200 soil water potential sensor for irrigation management
Provedor de dados: 18
Autores: McCann, I.R.; Kincaid, D.C.; Wang, D.
Tipo: Article
Palavras-chave: Soil water (soil moisture); Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1992
URL: http://eprints.nwisrl.ars.usda.gov/586/1/783.pdf

Soil property patterns and topographic parameters associated with ephemeral gully erosion
Provedor de dados: 18
Autores: Lentz, R.D.; Dowdy, R.H.; Rust, R.H.
Tipo: Article
Palavras-chave: Erosion; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1993
URL: http://eprints.nwisrl.ars.usda.gov/602/1/814.pdf

Phosphorus-31 nuclear magnetic resonance spectral assignments of phosphorus compounds in soil NaOH-EDTA extracts
Provedor de dados: 18
Autores: Turner, Benjamin L.; Mahieu, Nathalie; Condron, Leo M.
Tipo: Article
Palavras-chave: Phosphorous; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2003
URL: http://eprints.nwisrl.ars.usda.gov/153/1/1095.pdf

Mineral analysis of forages with near infrared reflectance spectrosopy
Provedor de dados: 18
Autores: Clark, D.H.; Mayland, H.F.; Lamb, R.C.
Tipo: Article
Palavras-chave: Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1987
URL: http://eprints.nwisrl.ars.usda.gov/478/1/602.pdf

Saline and Sodic Soils (Principles - Dynamics - Modeling)
Provedor de dados: 18
Tipo: Book
Palavras-chave: Soil; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1982

A Review. Measurement of root porosity (volume of root air space)
Provedor de dados: 18
Autores: Sojka, R.E.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1988
URL: http://eprints.nwisrl.ars.usda.gov/506/1/666.pdf

An Inexpensive Counter-Timer for Water Velocity Meters
Provedor de dados: 18
Autores: Fisher, H.D.; Bondurant, J.A.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1970
URL: http://eprints.nwisrl.ars.usda.gov/190/1/173.pdf

Comparison of Campbell-leaf press with standard plant water stress measurements for four species
Provedor de dados: 18
Autores: Sojka, R.E.; Sadler, E.J.; Camp, C.R.; Arnold, F.B.
Tipo: Conference or Workshop Item
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1987
URL: http://eprints.nwisrl.ars.usda.gov/1045/1/635.pdf

SWAGMAN-Whatif Software and User Guide
Provedor de dados: 18
Autores: Meyer, W.S.; Robbins, C.W.; Prathapar, S.A.
Tipo: Book
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1995

Operational estimates of reference evapotranspiration
Provedor de dados: 18
Autores: Allen, Richard G.; Jensen, Marvin E.; Wright, James L.; Burman, Robert D.
Tipo: Article
Palavras-chave: Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1989

Field Evaluation of Seepage Measurement Methods
Provedor de dados: 18
Autores: Brockway, C.E.; Worstell, R.V.
Tipo: Conference or Workshop Item
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1969
URL: http://eprints.nwisrl.ars.usda.gov/899/1/124.pdf

Quantification of myo-inositol hexakisphosphate in alkaline soil extracts by solution 31P NMR spectroscopy and spectral deconvolution
Provedor de dados: 18
Autores: Turner, Benjamin L.; Mahieu, Nathalie; Condron, Leo M.
Tipo: Article
Palavras-chave: Phosphorous; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2003
URL: http://eprints.nwisrl.ars.usda.gov/166/1/1108.pdf

The Usefulness of Water Potential Measurements in Soil and Related Media
Provedor de dados: 18
Autores: Cary, J.W.; Hanks, R.J.
Tipo: Book Section
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1972
URL: http://eprints.nwisrl.ars.usda.gov/747/1/237.pdf

Distribution Control and Measurement of Irrigation Water on the Farm
Provedor de dados: 18
Autores: Robinson, A.R.; Lauritzen, C.W.; Muckel, D.C.; Phelan, Jack.
An irrigation system should be designed  to provide correct distribution,  control, and measurement of the irrigation  water.      Usually a farmer takes his irrigation  water from a canal through a headgate.  Or he may receive it from a pipeline  regulated by a valve, or perhaps from  his own well and pump. Open ditches  are most commonly used to carry the  water to the fields. Water control structures  are used to get it out of the ditches  and onto the fields. Measurement devices  are needed so the farmer can tell  how much water he has applied to his  field at any irrigation or over the  season.      Several types of structures are used  to divert, convey, control, or measure  irrigation water. Some of these are  described, and their functions...
Tipo: Technical Bulletin
Palavras-chave: Irrigation control; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1963
URL: http://eprints.nwisrl.ars.usda.gov/1140/1/7.pdf

New Seepage Meter Pinpoints High Water Loss Areas
Provedor de dados: 18
Autores: Worstell, Robert V.
Tipo: Article
Palavras-chave: Research methodology; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1970

Freezing Point Method
Provedor de dados: 18
Autores: Cary, J.W.
Tipo: Technical Bulletin
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1971
URL: http://eprints.nwisrl.ars.usda.gov/1198/1/164.pdf

Solute response to changing nutrient loads in soil and walled ceramic cup samplers under continuous extraction
Provedor de dados: 18
Autores: Lentz, R.D.
Tipo: Article
Palavras-chave: Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2006
URL: http://eprints.nwisrl.ars.usda.gov/37/1/1188.pdf

Plant analyses and interpretation
Provedor de dados: 18
Autores: Westermann, D.T.
Plant analysis historic beginnings are generally attributed to T. de Saussure (1804)  following studies by van Helmont, Joseph Priestly, Henry Cavenish, and Antonine  Lavoisier. de Saussure showed that the composition of plant ash varied with the  part analyzed, with the age of the plant, and with the soil upon which the plant  grew. The ash was chiefly composed of alkalis and phosphates. Erasmus Darwin  in his 1800 book, Phytogia: The Philosophy of Agriculture and Gardening (London,  J. Johnson) wrote that both nitrogen (N) and phosphorus (P) were essential  components of plants. In 1833, the Fifth Duke of Richmond showed that the value  of bone meal fertilizing was due to its P component rather than calcium (Ca), although  Justus von Liebig (1852) is...
Tipo: Book Section
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2005
URL: http://eprints.nwisrl.ars.usda.gov/738/1/1170.pdf

Estimating Seepage Losses from Canal Systems
Provedor de dados: 18
Autores: Worstell, R.V.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1976
URL: http://eprints.nwisrl.ars.usda.gov/289/1/332.pdf

Estimates of Potentially Mineralizable Soil Nitrogen Based on Short-term Incubations
Provedor de dados: 18
Autores: Stanford, George; Carter, J.N.; Smith, S.J.
Tipo: Article
Palavras-chave: Nitrogen; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1974
URL: http://eprints.nwisrl.ars.usda.gov/264/1/293.pdf

Remote Sensing for Estimated Soil Salinity
Provedor de dados: 18
Autores: Myers, V.I.; Carter, D.L.; Rippert, W.J.
Tipo: Article
Palavras-chave: Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1966
URL: http://eprints.nwisrl.ars.usda.gov/396/1/49.pdf

Determining animal preference for grasses: Methods and error analysis
Provedor de dados: 18
Autores: Shewmaker, Glenn E.; Mayland, Henry F.; Hansen, Susie B.
Tipo: Conference or Workshop Item
Palavras-chave: Feed preference; Animal preference; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1995
URL: http://eprints.nwisrl.ars.usda.gov/923/1/902.pdf

Software utilizing Imhoff cone volumes to estimate furrow-irrigation erosion
Provedor de dados: 18
Autores: Sojka, R.E.; Lentz, R.D.; Foerster, J.A.
Tipo: Article
Palavras-chave: Erosion; Erosion; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1994
URL: http://eprints.nwisrl.ars.usda.gov/625/1/847.pdf

The Energy Budget at the Earth's Surface: Assessing Sources and Sinks of Carbon Dioxide in a Corn Crop Using a Momentum Balance Approach
Provedor de dados: 18
Autores: Lemon, E.R.; Wright, J.L.
In two previous communications (Wright and Lemon 1966a, 1966b) an  aerodynamic method was described for evaluating the source and sink  distribution of carbon dioxide in plant communities. Some data were  presented for a corn crop, giving quantitative information about  photosynthetic fixation and respiration release of carbon dioxide, layer  by layer, within the crop.  In the method, CO2 concentration profiles and windspeed measurements of  the bulk air were made within and above the crop. The analysis of the  windspeed measurements to calculate diffusivity coefficients required  tedious analysis of windspeed fluctuations and the application of  complicated statistical and mixing length theories. It is our purpose  to present here a simpler method,...
Tipo: Technical Bulletin
Palavras-chave: Corn / maize; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1967
URL: http://eprints.nwisrl.ars.usda.gov/1187/1/107.pdf

A Green Plant Sample Slicer
Provedor de dados: 18
Autores: Heinemann, William H.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1971
URL: http://eprints.nwisrl.ars.usda.gov/81/1/145.pdf

WEPP model erosion evaluation under furrow irrigation
Provedor de dados: 18
Autores: Bjorneberg, D.L.; Aase, J.K.; Trout, T.J.
Tipo: Conference or Workshop Item
Palavras-chave: Erosion; Erosion; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1997
URL: http://eprints.nwisrl.ars.usda.gov/1085/1/942.pdf

Optimizing phosphorus characterization in animal manures by solution phosphorus-31 nuclear magnetic resonance spectroscopy
Provedor de dados: 18
Autores: Turner, Benjamin L.
Tipo: Article
Palavras-chave: Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2004
URL: http://eprints.nwisrl.ars.usda.gov/178/1/1124.pdf

Determining Water Content of Different Soils by the Neutron Method
Provedor de dados: 18
Autores: Luebs, R.E.; Brown, M.J.; Lagg, A.E.
Tipo: Article
Palavras-chave: Soil; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1968
URL: http://eprints.nwisrl.ars.usda.gov/98/1/100.pdf

Pneumatic Sample Slicer
Provedor de dados: 18
Autores: Heinemann, W.H.; Carter, J.N.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1969
URL: http://eprints.nwisrl.ars.usda.gov/10/1/114.pdf

Automated system for collecting multiple, sequential samples from soil water percolation samplers under continuous vacuum
Provedor de dados: 18
Autores: Lentz, R.D.
Tipo: Article
Palavras-chave: Percolation sampler; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2006
URL: http://eprints.nwisrl.ars.usda.gov/29/1/1178.pdf

Sample preparation for determining ions in dark colored sodic soil extracts
Provedor de dados: 18
Autores: Robbins, Charles W.
Tipo: Article
Palavras-chave: Soil; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1989
URL: http://eprints.nwisrl.ars.usda.gov/518/1/680.pdf

Design and calibration of percolation samplers for measuring polyacrylamide-amended furrow-irrigation effects on drainage water quality
Provedor de dados: 18
Autores: Lentz, Rodrick D.; Sojka, Robert E.; Kincaid, Dennis C.
Tipo: Conference or Workshop Item
Palavras-chave: Drainage water (see Percolation water); Polyacrylamide; Percolation water; Percolation sampler; Polyacrylamide; Drainage water (see Percolation water); Percolation water; Polyacrylamide; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1998
URL: http://eprints.nwisrl.ars.usda.gov/860/1/959.pdf

Sampling Ports for an Instrumented Lysimeter System
Provedor de dados: 18
Autores: Robbins, C.W.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1985
URL: http://eprints.nwisrl.ars.usda.gov/445/1/562.pdf

Cablegation evaluation methodology
Provedor de dados: 18
Autores: Trout, T.J.; Kincaid, D.C.
Tipo: Article
Palavras-chave: Practical farm efficiency; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1994
URL: http://eprints.nwisrl.ars.usda.gov/615/1/833.pdf

Identification of scyllo-inositol phosphates in soil by solution phosphorus-31 nuclear magnetic resonance spectroscopy
Provedor de dados: 18
Autores: Turner, Benjamin L; Richardson, Alan E.
Tipo: Article
Palavras-chave: Phosphorous; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2004
URL: http://eprints.nwisrl.ars.usda.gov/179/1/1125.pdf

Comparison of ET measured with neutron moisture meters and weighing lysimeters
Provedor de dados: 18
Autores: Wright, James L.
Tipo: Conference or Workshop Item
Palavras-chave: Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1990
URL: http://eprints.nwisrl.ars.usda.gov/1053/1/704.pdf

Frequency Analysis of Snow Course Data
Provedor de dados: 18
Autores: Brockway, C.E.; Mayland, H.F.
Tipo: Conference or Workshop Item
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1980
URL: http://eprints.nwisrl.ars.usda.gov/1016/1/437.pdf

Nitrate Determination by a Modified Conway Microdiffusion Method
Provedor de dados: 18
Autores: Stanford, George; Carter, J.N.; Simpson Jr, Elmer C.; Schwaninger, Daniel E.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1973
URL: http://eprints.nwisrl.ars.usda.gov/263/1/292.pdf

A Method for Measuring Oxygen and Carbon Dioxide in Soil
Provedor de dados: 18
Autores: Cary, J.W.; Holder, C.
Tipo: Article
Palavras-chave: Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1982
URL: http://eprints.nwisrl.ars.usda.gov/394/1/498.pdf

Squeezer: A device for indirect pressure measurement in thin-walled microirrigation tubing
Provedor de dados: 18
Autores: Kincaid, D.C.; Trout, T.J.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2002
URL: http://eprints.nwisrl.ars.usda.gov/150/1/1091.pdf

Water Control and Measurement on the Farm
Provedor de dados: 18
Autores: Robinson, A.R.; Humpherys, A.S.
Tipo: Book Section
Palavras-chave: Irrigation control; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1967
URL: http://eprints.nwisrl.ars.usda.gov/730/1/66.pdf

The Role of Evapotranspiration Models in Irrigation Scheduling
Provedor de dados: 18
Autores: Jensen, Marvin E.; Wright, James L.
Tipo: Article
Palavras-chave: Irrigation scheduling; Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1978
URL: http://eprints.nwisrl.ars.usda.gov/330/1/391.pdf

An Inexpensive Method of Determining Plant Moisture Stress Using Freezing Point Depression
Provedor de dados: 18
Autores: Fisher, H.D.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1972
URL: http://eprints.nwisrl.ars.usda.gov/221/1/225.pdf

Sonic Radiation for Soil Mechanical Property Measurement
Provedor de dados: 18
Autores: Rickman, Ron W.
Tipo: Article
Palavras-chave: Soil; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1971
URL: http://eprints.nwisrl.ars.usda.gov/205/1/192.pdf

Conversion between evapotranspiration references and methods
Provedor de dados: 18
Autores: Wright, James L.; Allen, Richard G.; Howell, Terry A.
Tipo: Conference or Workshop Item
Palavras-chave: Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2000
URL: http://eprints.nwisrl.ars.usda.gov/1096/1/1034.pdf

Crop Coefficient for Estimates of Daily Crop Evapotranspiration
Provedor de dados: 18
Autores: Wright, James L.
Tipo: Conference or Workshop Item
Palavras-chave: Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1981
URL: http://eprints.nwisrl.ars.usda.gov/1023/1/470.pdf

The ASCE neutron probe calibration study: overview
Provedor de dados: 18
Autores: Stone, J.F.; Allen, R.G.; Dickey, G.L.; Wright, J.L.; Nakayama, F.S.; Phillips, R.W.
Tipo: Conference or Workshop Item
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1993
URL: http://eprints.nwisrl.ars.usda.gov/869/1/805.pdf

Experimental Measurements of Soil-Moisture Hysteresis and Entrapped Air
Provedor de dados: 18
Autores: Cary, J.W.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1967
URL: http://eprints.nwisrl.ars.usda.gov/568/1/75.pdf

Estimating Soil Moisture Depletion from Climate, Crop and Soil Data
Provedor de dados: 18
Autores: Jensen, M.E.; Wright, J.L.; Pratt, B.J.
Tipo: Article
Palavras-chave: Soil water (soil moisture); Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1971
URL: http://eprints.nwisrl.ars.usda.gov/199/1/182.pdf

Ash, carbon isotope discrimination, and silicon as estimators of transpiration efficiency in crested wheatgrass
Provedor de dados: 18
Autores: Mayland, H.F.; Johnson, D.A.; Asay, K.H.; Read, J.J.
Tipo: Article
Palavras-chave: Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1993
URL: http://eprints.nwisrl.ars.usda.gov/600/1/803.pdf

Estimating crop evapotranspiration
Provedor de dados: 18
Autores: Wright, James L.
Tipo: Book Section
Palavras-chave: Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1990
URL: http://eprints.nwisrl.ars.usda.gov/803/1/711.pdf

Soil Ingestion by Cattle on Semiarid Range as Reflected by Titanium Analysis of Feces
Provedor de dados: 18
Autores: Mayland, H.F.; Florence, Arlene; Rosenau, R.C.; Lazar, V.A.
Tipo: Article
Palavras-chave: Manure; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1975
URL: http://eprints.nwisrl.ars.usda.gov/291/1/334.pdf

Studies of Methods for Measuring Forms of Available Soil Nitrogen
Provedor de dados: 18
Autores: Hunter, Albert S.; Carter, David L.
Tipo: Article
Palavras-chave: Nitrogen; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1965
URL: http://eprints.nwisrl.ars.usda.gov/300/1/34.pdf

Identification of differentially expressed UniGenes in developing wheat seed using digital differential display
Provedor de dados: 18
Autores: Eujayl, Imad A.; Morrison, C.
Tipo: Article
Palavras-chave: Research methodology.
Ano: 2009
URL: http://eprints.nwisrl.ars.usda.gov/1310/1/1286.pdf

Analysis of trace elements in forages by near infrared reflectance spectroscopy
Provedor de dados: 18
Autores: Clark, D.H.; Cary, E.E.; Mayland, H.F.
Tipo: Article
Palavras-chave: Grass forage; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1989
URL: http://eprints.nwisrl.ars.usda.gov/508/1/669.pdf

Alternative Methods of Estimating Snow-Water Parameters
Provedor de dados: 18
Autores: Reese, David L.; Mayland, H.F.; Brockway, Charles E.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1973
URL: http://eprints.nwisrl.ars.usda.gov/247/1/267.pdf

Hydraulic modeling of irrigation-induced furrow erosion
Provedor de dados: 18
Autores: Strelkoff, Theodor S.; Bjorneberg, David L.
Tipo: Conference or Workshop Item
Palavras-chave: Erosion; Erosion; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2002
URL: http://eprints.nwisrl.ars.usda.gov/893/1/1067.pdf

Soil Characterization by Diffusion Measurements
Provedor de dados: 18
Autores: Massee, Truman Winfield.
Tipo: Thesis
Palavras-chave: Soil; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1973

Soil Water Measurement with an Inexpensive Spectrophotometer
Provedor de dados: 18
Autores: Bowers, S.A.; Smith, S.J.; Fisher, H.D.; Miller, G.E.
Tipo: Article
Palavras-chave: Soil water (soil moisture); Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1975
URL: http://eprints.nwisrl.ars.usda.gov/301/1/350.pdf

Near infra-red measurement of nonstructural carbohydrates in alfalfa hay
Provedor de dados: 18
Autores: Mayland, H.F.; Burns, J.C.; Fisher, D.S.; Shewmaker, G.E.
Tipo: Conference or Workshop Item
Palavras-chave: Alfalfa; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2001
URL: http://eprints.nwisrl.ars.usda.gov/945/1/1056.pdf

Understanding salt and sodium in soils, irrigation water and shallow groundwaters: A companion to the software program SWAGMAN-Whatif
Provedor de dados: 18
Autores: Robbins, C.W.; Meyer, W.S.; Prathapar, S.A.; White, R.J.G.
Tipo: Technical Bulletin
Palavras-chave: Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/1190/1/731.pdf

Spatial variation of parameters describing soil surface roughness
Provedor de dados: 18
Autores: Lehrsch, G.A.; Whisler, F.D.; Römkens, M. J. M.
Tipo: Article
Palavras-chave: Soil; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1988
URL: http://eprints.nwisrl.ars.usda.gov/497/1/650.pdf

Relations Between CO2 Exchange Rate, CO2 Compensation, and Mesophyll Resistance from a Simple Field Method
Provedor de dados: 18
Autores: Cary, J.W.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1977
URL: http://eprints.nwisrl.ars.usda.gov/319/1/376.pdf

A Combined Salt Transport-Chemical Equilibrium Model for Calcareous and Gypsiferous Soils
Provedor de dados: 18
Autores: Robbins, C.W.; Wagenet, R.J.; Jurinak, J.J.
Tipo: Article
Palavras-chave: Calcareous soil; Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1980
URL: http://eprints.nwisrl.ars.usda.gov/372/1/457.pdf

Discussion: Flow Measurements with Fluorescent Tracers
Provedor de dados: 18
Autores: Worstell, R.V.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1967
URL: http://eprints.nwisrl.ars.usda.gov/534/1/70.pdf

Improved Seepage Meter Operation for Locating Areas of High Water Loss in Canals and Ponds
Provedor de dados: 18
Autores: Worstell, R.V.; Carpenter, C.D.
Tipo: Conference or Workshop Item
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1969
URL: http://eprints.nwisrl.ars.usda.gov/971/1/184.pdf

Air-Flow Planimeter for Measuring Detached Leaf Area
Provedor de dados: 18
Autores: Mayland, H.F.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1969
URL: http://eprints.nwisrl.ars.usda.gov/87/1/155.pdf

A computer based plant/soil aeration bibliography
Provedor de dados: 18
Autores: Sojka, R.E.; Busscheer, W.J.
Tipo: Book Section
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1988
URL: http://eprints.nwisrl.ars.usda.gov/800/1/637.pdf

Cast-in-Place 2-Foot Concrete Trapezoidal Flow-Measuring Flumes
Provedor de dados: 18
Autores: Humpherys, A.S.; Bondurant, J.A.
Procedures are presented for casting 50-ft^2/sec trapezoidal water measurement  flumes in 2-foot bottom width lined and unlined ditches. Drawings and   construction details for the concrete forms used are also presented. Flumes   installed in concrete-lined ditches require about 13 man-hours and cost about $230.  Flow can be determined for both free and submerged flow conditions from rating   tables with depth measured in a sitting well or with a sloping gage on the flue sidewall.
Tipo: Technical Bulletin
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1977
URL: http://eprints.nwisrl.ars.usda.gov/1143/1/394.pdf

Ethanol production of semi-simultaneous saccharification and fermentation from mixture of cotton gin waste and recycled paper sludge
Provedor de dados: 18
Autores: Shen, Jiacheng, J.; Foster, A.A., A.A.
Ethanol production from the steam-exploded mixture of 75% cotton gin waste and 25% recycled paper sludge in various conditions was investigated by semisimultaneous saccharification and fermentation (SSSF) consisting of a pre-hydrolysis and a simultaneous saccharification and fermentation (SSF). Four cases were studied: 24-h pre-hydrolysis + 48-h SSF (SSSF 24), 12-h pre-hydrolysis + 60-h SSF (SSSF 12), 72-h SSF, and 48-h   hydrolysis + 24-h fermentation (SHF). The ethanol concentration, yield, and productivity of SSSF 24 were higher than those of the other operations. A model of SSF was used to simulate the data for four components in SSF. The analysis of the reaction rates of cellobiose, glucose, cell, and ethanol using the model and the parameters from...
Tipo: Article
Palavras-chave: Research methodology.
Ano: 2011
URL: http://eprints.nwisrl.ars.usda.gov/1412/1/1382.pdf

A Method for Measuring Water Intake Rate into Soil for Sprinkler Design
Provedor de dados: 18
Autores: Tovey, Rhys; Pair, Claude H.
Tipo: Conference or Workshop Item
Palavras-chave: Infiltration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1963
URL: http://eprints.nwisrl.ars.usda.gov/1029/1/4.pdf

A water droplet evaporation and temperature model
Provedor de dados: 18
Autores: Kincaid, D.C.; Longley, T.S.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1989
URL: http://eprints.nwisrl.ars.usda.gov/512/1/675.pdf

Estimating Evapotranspiration from Solar Radiation
Provedor de dados: 18
Autores: Jensen, M.E.; Haise, H.R.
Tipo: Article
Palavras-chave: Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1963
URL: http://eprints.nwisrl.ars.usda.gov/1248/1/23.pdf

Calculating pH from EC and SAR values in salinity models and SAR from soil and bore water pH and EC data
Provedor de dados: 18
Autores: Robbins, C.W.; Meyer, W.S.
Tipo: Article
Palavras-chave: Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1990
URL: http://eprints.nwisrl.ars.usda.gov/539/1/716.pdf

Predicting the Nitrogen Needs of Sugar Beets by Petiole Analysis
Provedor de dados: 18
Autores: Carter, J.N.; Jensen, M.E.
Tipo: Article
Palavras-chave: Sugarbeet; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1968
URL: http://eprints.nwisrl.ars.usda.gov/71/1/123.pdf

Monitoring software for pollutant components in furrow irrigation runoff
Provedor de dados: 18
Autores: Lentz, R.D.; Sojka, R.E.
Tipo: Conference or Workshop Item
Palavras-chave: Runoff losses; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1995
URL: http://eprints.nwisrl.ars.usda.gov/912/1/903.pdf

Automated Imhoff cone calibration and soil loss/infiltration analysis for furrow irrigation studies
Provedor de dados: 18
Autores: Lentz, R.D.; Sojka, R.E.
Tipo: Conference or Workshop Item
Palavras-chave: Infiltration; Runoff losses; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1994
URL: http://eprints.nwisrl.ars.usda.gov/1066/1/830.pdf

Uptake coefficients for biosolids-amended dryland winter wheat
Provedor de dados: 18
Autores: Barbarack, K.A.; Ippolito, J.A.; McDaniel, J.
Biosolids regulations developed in the United States employed risk assessment impacts of trace element additions on plant uptake.  The US Environmental Protection Agency adapted the uptake coefficient (ratio of plant concentration to quantity of element added) when developing limitations on selected elemental additions.  The nature of the risk assessment requires uptake coefficients to be constants.  Our hypothesis was the uptake coefficient for copper, iron, molybdenum, nickel, phosphorus, and zinc for biosolids-amended dryland winter wheat decreases with multiple biosolids applications at the same location.  We applied up to 10 applications to two sites (designated North Bennett A and B) in eastern Colorado at rates from 2.24 to 11.2 megagrams per...
Tipo: Article
Palavras-chave: Dryland crops; Research methodology; Soil.
Ano: 2015
URL: http://eprints.nwisrl.ars.usda.gov/1580/1/1536.pdf

Stickly Stake Traps for Monitoring Fly Populations in the Sugarbeet Root Maggot and Predicting Maggot Populations and Damage Ratings
Provedor de dados: 18
Autores: Blickenstaff, C.C.; Peckenpaugh, R.E.
Tipo: Article
Palavras-chave: Sugarbeet; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1976
URL: http://eprints.nwisrl.ars.usda.gov/284/1/327.pdf

Crop yield models adapted to irrigation scheduling programs
Provedor de dados: 18
Autores: Hill, R.W.; Hanks, R.J.; Wright, J.L.
Please contact the NWISRL if you have a copy of this publication.
Tipo: Technical Bulletin
Palavras-chave: Irrigation scheduling; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1985

Carbon Dioxide Partial Pressure in Lysimeter Soils
Provedor de dados: 18
Autores: Robbins, Charles W.
Tipo: Article
Palavras-chave: Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1986
URL: http://eprints.nwisrl.ars.usda.gov/447/1/565.pdf

Small and Large Diameter, Water-Table Observation Wells Compared
Provedor de dados: 18
Autores: Benz, L.C.; Mickelson, R.H.; Jensen, M.E.; Sandoval, O.H.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1963
URL: http://eprints.nwisrl.ars.usda.gov/210/1/1.pdf

Models for estimating capillary rise in a heavy clay soil with a saline shallow water table
Provedor de dados: 18
Autores: Prathapar, S.A.; Robbins, C.W.; Meyer, W.S.; Jayawardane, N.S.
Tipo: Article
Palavras-chave: Soil; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1992
URL: http://eprints.nwisrl.ars.usda.gov/570/1/762.pdf

Furrow geometric parameters
Provedor de dados: 18
Autores: Trout, Thomas J.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/562/1/752.pdf

The WEPP model for runoff and erosion prediction under sprinkler irrigation
Provedor de dados: 18
Autores: Kincaid, D.C.
Tipo: Article
Palavras-chave: Erosion; Runoff losses; Sprinkler irrigation; Erosion; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2002
URL: http://eprints.nwisrl.ars.usda.gov/135/1/1063.pdf

The phosphorus composition of temperate pasture soils determined by NaOH-EDTA extraction and solution 31P NMR spectroscopy
Provedor de dados: 18
Autores: Turner, Benjamin L.; Mahieu, Nathalie; Condron, Leo M.
Tipo: Article
Palavras-chave: Phosphorous; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2003
URL: http://eprints.nwisrl.ars.usda.gov/164/1/1106.pdf

Measurement of Intake Rate for Sprinkler Irrigation Design (Gen. Ed.)
Provedor de dados: 18
Autores: Tovey, Rhys; Pair, C.H.
Tipo: Article
Palavras-chave: Infiltration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1966
URL: http://eprints.nwisrl.ars.usda.gov/384/1/47.pdf

Modeling Water and Nitrogen Behavior in the Soil-Plant System
Provedor de dados: 18
Autores: Frere, M.H.; Jensen, M.E.; Carter, J.N.
Tipo: Conference or Workshop Item
Palavras-chave: Nitrogen; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1970
URL: http://eprints.nwisrl.ars.usda.gov/973/1/204.pdf

Aeration measurement
Provedor de dados: 18
Autores: Sojka, R.E.; Scott, H.D.
Tipo: Book Section
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2002
URL: http://eprints.nwisrl.ars.usda.gov/816/1/1073.pdf

Convenient Estimation of Soil Organic-N Using the Udy Dye System
Provedor de dados: 18
Autores: Massee, T.W.
Tipo: Article
Palavras-chave: Nitrogen; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1975
URL: http://eprints.nwisrl.ars.usda.gov/292/1/335.pdf

SWAGMAN-Whatif, an interactive computer program to teach salinity relationships in irrigated agriculture
Provedor de dados: 18
Autores: Robbins, C.W.; Meyer, W.S.; Prathapar, S.A.; White, R.J.G.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1995
URL: http://eprints.nwisrl.ars.usda.gov/650/1/883.pdf

Empirical Methods of Estimating or Predicting Evapotranspiration Using Radiation
Provedor de dados: 18
Autores: Jensen, Marvin E.
Tipo: Conference or Workshop Item
Palavras-chave: Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1967
URL: http://eprints.nwisrl.ars.usda.gov/1063/1/81.pdf

Effects of Salts on Oxygen Diffusion Rate Measurements in Unsaturated Soils
Provedor de dados: 18
Autores: Rickman, Ron W.
Tipo: Article
Palavras-chave: Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1968
URL: http://eprints.nwisrl.ars.usda.gov/175/1/111.pdf

Kinematic-Wave Furrow Irrigation Model
Provedor de dados: 18
Autores: Walker, Wynn R.; Humpherys, Allan S.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1983
URL: http://eprints.nwisrl.ars.usda.gov/410/1/518.pdf

Bowen-Ratio Comparisons with Lysimeter Evapotranspiration
Provedor de dados: 18
Autores: Prueger, John H.; Hatfield, Jerry L.; Aase, J. Kristian; Pikul, Joseph L.
Tipo: Article
Palavras-chave: Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1997
URL: http://eprints.nwisrl.ars.usda.gov/687/1/953.pdf

A novel technique for the pre-concentration and extraction of inositol hexakisphosphate from soil extracts with determination by phosphorus-31 nuclear magnetic resonance
Provedor de dados: 18
Autores: Turner, Benjamin L.; McKelvie, Ian D.
Tipo: Article
Palavras-chave: Phosphorous; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2002
URL: http://eprints.nwisrl.ars.usda.gov/163/1/1105.pdf

An ecoinformatics tool for microbial community studies: Supervised classification of amplicon length heterogeneity (ALH) profiles of 16S rRNA
Provedor de dados: 18
Autores: Yang, C.; Mills, D.; Mathee, K.; Wang, Y.; Jayachandran, K.; Sikaroodi, M.; Gillevet, P.; Entry, J.; Narasimhan, N.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2006
URL: http://eprints.nwisrl.ars.usda.gov/32/1/1181.pdf

Modeling transport of bromide in furrow-irrigated field
Provedor de dados: 18
Autores: Izadi, Behzad; King, Bradley; Westermann, Dale T.; McCann, Ian.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/656/1/898.pdf

Photoelectric Tachometer for Precise Centrifuge Speed Determination
Provedor de dados: 18
Autores: Fisher, H.D.; Brown, M.J.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1970
URL: http://eprints.nwisrl.ars.usda.gov/206/1/193.pdf

Simplified Flow Corrections for Parshall Flumes Under Submerged Conditions
Provedor de dados: 18
Autores: Robinson, A.R.
Tipo: Book Section
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1965
URL: http://eprints.nwisrl.ars.usda.gov/723/1/29.pdf

Recirculating Purging System for Hemispherical Net Radiometers
Provedor de dados: 18
Autores: Stevens, J.L.; Wright, J.L.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1977
URL: http://eprints.nwisrl.ars.usda.gov/333/1/396.pdf

Analysis of residual acrylamide in field crops
Provedor de dados: 18
Autores: Bologna, Loren S.; Andrawes, Fikry F.; Barvenik, Frank W.; Lentz, Rodrick D.; Sojka, Robert E.
Tipo: Article
Palavras-chave: Water-soluble PAM (WSPAM); Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1999
URL: http://eprints.nwisrl.ars.usda.gov/714/1/990.pdf

Orifice Plates for Furrow Flow Measurement: Part II - Design and Field Use
Provedor de dados: 18
Autores: Trout, Thomas J.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1986
URL: http://eprints.nwisrl.ars.usda.gov/453/1/571.pdf

An Instrumented Lysimeter System for Monitoring Salt and Water Movement
Provedor de dados: 18
Autores: Robbins, C.W.; Willardson, L.S.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1980
URL: http://eprints.nwisrl.ars.usda.gov/360/1/443.pdf

Testing Soil for Micronutrients
Provedor de dados: 18
Autores: Leggett, Glen E.
Tipo: Conference or Workshop Item
Palavras-chave: Chemistry; Soil; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1968
URL: http://eprints.nwisrl.ars.usda.gov/966/1/135.pdf

An automated vacuum extraction control system for soil water percolation samplers
Provedor de dados: 18
Autores: Lentz, R.D.; Kincaid, D.C.
Tipo: Article
Palavras-chave: Percolation sampler; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2003
URL: http://eprints.nwisrl.ars.usda.gov/147/1/1089.pdf

Measurement Device Effect on Channel Water Loss
Provedor de dados: 18
Autores: Trout, Thomas J.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1983
URL: http://eprints.nwisrl.ars.usda.gov/397/1/500.pdf

An Automatic System for Sampling Processing Waste Water
Provedor de dados: 18
Autores: Fisher, H.D.; Smith, J.H.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1975
URL: http://eprints.nwisrl.ars.usda.gov/268/1/304.pdf

Differences in Chemical Composition of Plant Sample Fractions Resulting from Grinding and Screening
Provedor de dados: 18
Autores: Smith, J.H.; Carter, D.L.; Brown, M.J.; Douglas, C.L.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1968
URL: http://eprints.nwisrl.ars.usda.gov/686/1/94.pdf

Photogrammetry and Temperature Sensing for Estimating Soil Salinity
Provedor de dados: 18
Autores: Myers, Victor I.; Carter, D.L.; Rippert, W.J.
Tipo: Conference or Workshop Item
Palavras-chave: Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1966
URL: http://eprints.nwisrl.ars.usda.gov/1002/1/37.pdf

Irrigation Scheduling with Soil Instruments: Error Levels and Microprocessing Design Criteria
Provedor de dados: 18
Autores: Cary, J.W.
Tipo: Conference or Workshop Item
Palavras-chave: Irrigation scheduling; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1981
URL: http://eprints.nwisrl.ars.usda.gov/1022/1/469.pdf

Mechanical Snake River Undisturbed Soil Core Sampler
Provedor de dados: 18
Autores: Hayden, C.W.; Robbins, C.W.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1975
URL: http://eprints.nwisrl.ars.usda.gov/270/1/307.pdf

The importance and challenge of modeling irrigation-induced erosion
Provedor de dados: 18
Autores: Sojka, R.E.; Bjorneberg, D.L.; Trout, T.J.; Strelkoff, T.S.; Nearing, M.A.
Irrigation-induced erosion and rain-induced erosion result from very different  systematics. Therefore, both cannot be predicted effectively using the same models. The  average two-fold yield and three-fold economic advantage of irrigation over rain-fed agriculture,  coupled with the fragility of irrigated land and the strategic importance of irrigation  development to meet world agricultural production needs, has raised the urgency for the  development of robust, accurate, and precise irrigation-induced erosion models. This paper  details the rationale for separate irrigation-induced erosion models, presents essential aspects  unique to irrigation that must be accounted for in the models, and summarizes the progress  (to date) toward the goal of...
Tipo: Article
Palavras-chave: Erosion; Erosion; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2007
URL: http://eprints.nwisrl.ars.usda.gov/54/1/1216.pdf

Photosynthesis Under Field Conditions. XA. Assessing Sources and Sinks of Carbon Dioxide in a Corn (Zea mays L.) Crop Using Momentum Balance Approach
Provedor de dados: 18
Autores: Lemon, E.R.; Wright, J.L.
Tipo: Article
Palavras-chave: Corn / maize; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1969
URL: http://eprints.nwisrl.ars.usda.gov/188/1/171.pdf

Insecticide Tests for Control of the Sugarbeet Root Maggot, 1968-1978
Provedor de dados: 18
Autores: Blickenstaff, C.C.; Peckenpaugh, R.E.; Traveller, Del; Stallings, J.D.
Please contact the NWISRL if you have a copy of this publication.
Tipo: Technical Bulletin
Palavras-chave: Sugarbeet; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1981

Separation of soil organic phosphorus compounds using reverse-phase ion-pair chromatography
Provedor de dados: 18
Autores: Leytem, April B.; Mikkelsen, Robert L.
Tipo: Article
Palavras-chave: Phosphorous; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2003
URL: http://eprints.nwisrl.ars.usda.gov/159/1/1100.pdf

Inflow-outflow infiltration measurement accuracy
Provedor de dados: 18
Autores: Trout, Thomas J.; Mackey, Bruce E.
Tipo: Article
Palavras-chave: Infiltration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1988
URL: http://eprints.nwisrl.ars.usda.gov/495/1/647.pdf

Evaluation of the Vane-Type Flow Meter
Provedor de dados: 18
Autores: Robinson, A.R.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1963
URL: http://eprints.nwisrl.ars.usda.gov/658/1/8.pdf

Fractional Water-Sediment Sampler
Provedor de dados: 18
Autores: Heinemann, William H.; Brown, Melvin J.
Tipo: Article
Palavras-chave: Sediment; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1972
URL: http://eprints.nwisrl.ars.usda.gov/226/1/234.pdf

A computer-based plant/soil-aeration bibliography
Provedor de dados: 18
Autores: Sojka, R.E.; Busscheer, W.J.
Tipo: Book Section
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1988
URL: http://eprints.nwisrl.ars.usda.gov/802/1/639.pdf

Plant Moisture Stress: A Portable Freezing-Point Meter Compared with the Psychrometer
Provedor de dados: 18
Autores: Cary, J.W.; Fisher, H.D.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1969
URL: http://eprints.nwisrl.ars.usda.gov/76/1/132.pdf

New furrow flume for high sediment loads
Provedor de dados: 18
Autores: Clemmens, A.J.; Bjorneberg, D.L.
Tipo: Article
Palavras-chave: Sediment; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2005
URL: http://eprints.nwisrl.ars.usda.gov/12/1/1157.pdf

Assessing nutrient cycling in the soil/plant animal system of semi-arid pasture lands
Provedor de dados: 18
Autores: Mayland, H.F.
Tipo: Book Section
Palavras-chave: Animal; Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1983
URL: http://eprints.nwisrl.ars.usda.gov/767/1/569.pdf

Use of time domain reflectometry for continuous monitoring of nitrate-nitrogen in soil and water
Provedor de dados: 18
Autores: Payero, J.O.; Tarkalson, D.D.; Irmak, S.
Nitrate-Nitrogen (NO3 -N) losses to ground and surface water are an environmental and agronomic concern in  modern crop production systems in the Central Great Plains. Monitoring techniques for nitrogen use in agricultural  production are needed to increase crop yield, optimize nitrogen use, and reduce NO 3 -N leaching. Time domain reflectometry  (TDR) could potentially be calibrated to continuously measure NO3 -N in soil and water. The objectives of this study were to:  (1) evaluate the effect of different factors affecting the response of the bulk electrical conductivity (ECb) sensed by TDR, (2)  compare the sensitivity and differences between vertically-installed and horizontally-installed probes for measuring NO3 -N  leaching in the soil profile, and...
Tipo: Article
Palavras-chave: Nitrogen; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2006
URL: http://eprints.nwisrl.ars.usda.gov/60/1/1221.pdf

Selection of a parameter describing soil surface roughness
Provedor de dados: 18
Autores: Lehrsch, G.A.; Whisler, F.D.; Römkens, M. J. M.
Tipo: Article
Palavras-chave: Soil; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1988
URL: http://eprints.nwisrl.ars.usda.gov/505/1/665.pdf

A new method for calculating frost heave including solute effects
Provedor de dados: 18
Autores: Cary, J.W.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1987
URL: http://eprints.nwisrl.ars.usda.gov/480/1/604.pdf

Field and laboratory measurements
Provedor de dados: 18
Autores: Robbins, C.W.; Wiegand, C.L.
Tipo: Book Section
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1990
URL: http://eprints.nwisrl.ars.usda.gov/804/1/712.pdf

Irrigation- Oriented ET Models for the Great Plains
Provedor de dados: 18
Autores: Jensen, Marvin E.; Wright, James L.
Tipo: Conference or Workshop Item
Palavras-chave: Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1970
URL: http://eprints.nwisrl.ars.usda.gov/972/1/196.pdf

Measuring soil bulk density profiles with a single probe gamma density gauge
Provedor de dados: 18
Autores: Wright, J.L.; Allen, R.G.; Dickey, G.L.
Tipo: Conference or Workshop Item
Palavras-chave: Chemistry; Soil; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1993
URL: http://eprints.nwisrl.ars.usda.gov/865/1/812.pdf

Trapezoidal Flumes for Measuring Flow in Irrigation Channels
Provedor de dados: 18
Autores: Robinson, A.R.
Tipo: Technical Bulletin
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1968
URL: http://eprints.nwisrl.ars.usda.gov/1107/1/97.pdf

Neutron gauge calibration comparison of methods
Provedor de dados: 18
Autores: Dickey, G.L.; Allen, R.G.; Barclay, J.H.; Wright, J.L.; Stone, J.F.; Draper, B.W.
Tipo: Conference or Workshop Item
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1993
URL: http://eprints.nwisrl.ars.usda.gov/864/1/811.pdf

The Ethylene Glycol Monoethyl Ether (EGME) Technique for Determining Soil-Surface Area
Provedor de dados: 18
Autores: Heilman, M.D.; Carter, D.L.; Gonzales, C.L.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1965
URL: http://eprints.nwisrl.ars.usda.gov/315/1/36.pdf

Partition Column Chromatography for Quantitating Effects of Fertilization on Plant Acids
Provedor de dados: 18
Autores: Prior, R.L.; Grunes, D.L.; Patterson, R.P.; Smith, F.W.; Mayland, H.F.; Visek, W.J.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1972
URL: http://eprints.nwisrl.ars.usda.gov/232/1/245.pdf

Volumetric water drop evaporation measurement
Provedor de dados: 18
Autores: Kincaid, D.C.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1989
URL: http://eprints.nwisrl.ars.usda.gov/519/1/683.pdf

Calculating Cation Exchange in a Salt Transport Model
Provedor de dados: 18
Autores: Robbins, C.W.; Jurinak, J.J.; Wagenet, R.J.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1980
URL: http://eprints.nwisrl.ars.usda.gov/373/1/458.pdf

Estimating polyacrylamide concentration in irrigation water
Provedor de dados: 18
Autores: Lentz, R.D.; Sojka, R.E.; Foerster, J.A.
Tipo: Article
Palavras-chave: Water-soluble PAM (WSPAM); Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/666/1/917.pdf

BOOK REVIEW: Isotopes and Radiation in Soil Organic-Matter Studies, Int. Atomic Energy Agency, Vienna, 1968, 584 pp
Provedor de dados: 18
Autores: Smith, J.H.
Tipo: Article
Palavras-chave: Soil; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1971

Monitoring software for pollutant components in furrow irrigation runoff
Provedor de dados: 18
Autores: Lentz, R.D.; Sojka, R.E.
Please contact the NWISRL if you have a copy of this publication.
Tipo: Technical Bulletin
Palavras-chave: Runoff losses; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1995

Discussion: Estimating Evaporation from Insolation by R. K. Lane
Provedor de dados: 18
Autores: Jensen, M.E.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1965
URL: http://eprints.nwisrl.ars.usda.gov/234/1/24.pdf

Research Ethics, Manuscript Review and Journal Quality
Provedor de dados: 18
Tipo: Conference or Workshop Item
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1992
URL: http://eprints.nwisrl.ars.usda.gov/1258/1/768.pdf

Characterizing Soil Fertility by Ion Diffusive Flux Measurements
Provedor de dados: 18
Autores: Massee, T.W.; Olsen, R.A.; Skogley, E.O.
Tipo: Article
Palavras-chave: Fertility; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1977
URL: http://eprints.nwisrl.ars.usda.gov/314/1/369.pdf

Sprinkler pattern analysis for center pivot irrigation
Provedor de dados: 18
Autores: Kincaid, Dennis C.
Users of center pivot and lateral move  irrigation systems now have  a wide array of sprinkler packages  from which to choose, including the  traditional overhead impact sprinklers,  various types of spray heads and the  LEPA-type furrow emitters. The original  spray heads used simple, smooth or serrated  fixed deflection plates. Recently, rotating  plate or wobble-plate spray heads have  been developed, combining the advantages  of spray heads and rotating sprinklers  — medium-size pattern radius, good  pattern shape and medium-size droplets  at medium to low pressures (10 to 30 psi).
Tipo: Article
Palavras-chave: Center pivot; Sprinkler irrigation; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/1233/1/924.pdf

An Instrument for in situ Measurements of Soil Moisture Flow and Suction
Provedor de dados: 18
Autores: Cary, J.W.
Tipo: Article
Palavras-chave: Soil water (soil moisture); Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1968
URL: http://eprints.nwisrl.ars.usda.gov/627/1/84.pdf

Matrix based fertilizers reduce nitrogen and phosphorus leaching in greenhouse column studies
Provedor de dados: 18
Autores: Entry, J.A.; Sojka, R.E.
Tipo: Article
Palavras-chave: Fertilizer; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2007
URL: http://eprints.nwisrl.ars.usda.gov/47/1/1202.pdf

Anatomy of a field trial: Wood-based biochar and compost influences a Pacific Northwest soil
Provedor de dados: 18
Autores: Ippolito, J.A.; Grob, J; Donnelly, A.
Biochar land application research in elevated rainfall areas (980 millimeters of annual rainfall) of the U.S. Pacific Northwest is lacking.  A proof-of-concept field study examined the effects of spruce-pine-fir wood chip biochar (slow pyrolysis; 450-500 degrees Celsius; 35 megagrams per hectare), dairy manure compost (105 megagrams per hectare), compost + biochar (35 and 105 megagrams per hectare, respectively), and a control (no biochar or compost) on glacially altered soil (sandy or loamy skeletal, isotonic, mesic humic or aquic Dystroxerepts) chemical properties and growth characteristics of vetch and sweet corn over a growing season.  In-season liming (5.4 megagrams per hectare) occurred to raise the soil pH for adequate crop growth.  Biochar, alone...
Tipo: Article
Palavras-chave: Chemistry; Manure; Research methodology; Fertility.
Ano: 2015
URL: http://eprints.nwisrl.ars.usda.gov/1595/1/1553.pdf

Water Measurement in Small Irrigation Channels Using Trapezoidal Flumes (Gen. Ed.)
Provedor de dados: 18
Autores: Robinson, A.R.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1966
URL: http://eprints.nwisrl.ars.usda.gov/387/1/48.pdf

Error analysis of bulk density measurements for neutron moisture gauge calibration
Provedor de dados: 18
Autores: Allen, R.G.; Dickey, G.; Wright, J.L.; Stone, J.F.; Hunsaker, D.J.
Tipo: Conference or Workshop Item
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1993
URL: http://eprints.nwisrl.ars.usda.gov/868/1/804.pdf

Orifice Plates for Furrow Flow Measurement: Part I - Calibration
Provedor de dados: 18
Autores: Trout, Thomas J.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1986
URL: http://eprints.nwisrl.ars.usda.gov/452/1/570.pdf

Sprinkler irrigation runoff and erosion control with polyacrylamide - laboratory tests
Provedor de dados: 18
Autores: Aase, J. Kristian; Bjorneberg, David L.; Sojka, Robert E.
Tipo: Article
Palavras-chave: Polyacrylamide; Runoff losses; Sprinkler irrigation; Erosion control; Runoff; Erosion; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1998
URL: http://eprints.nwisrl.ars.usda.gov/703/1/972.pdf

The WEPP model for runoff and erosion prediction under center pivot irrigation
Provedor de dados: 18
Autores: Kincaid, D.C.; Lehrsch, G.A.
Tipo: Conference or Workshop Item
Palavras-chave: Erosion; Runoff losses; Center pivot; Erosion; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2001
URL: http://eprints.nwisrl.ars.usda.gov/887/1/1029.pdf

Accumulation of Mercury Vapor in Soils Laboratories
Provedor de dados: 18
Autores: Fisher, H.D.; Cary, J.W.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1970
URL: http://eprints.nwisrl.ars.usda.gov/200/1/183.pdf

Photosynthesis Under Field Conditions. VIII. Analysis of Windspeed Fluctuation Data to Evaluate Turbulent Exchange Within a Corn Crop
Provedor de dados: 18
Autores: Wright, J.L.; Lemon, E.R.
Tipo: Article
Palavras-chave: Corn / maize; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1966
URL: http://eprints.nwisrl.ars.usda.gov/477/1/59.pdf

Comparison of Momentum and Energy Balance Methods of Computing Vertical Transfer Within a Crop
Provedor de dados: 18
Autores: Wright, J.L.; Brown, K.W.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1967
URL: http://eprints.nwisrl.ars.usda.gov/273/1/30.pdf

Photosynthesis of Sugarbeets under N and P Stress: Field Measurements and Carbon Balance
Provedor de dados: 18
Autores: Cary, J.W.
Tipo: Article
Palavras-chave: Sugarbeet; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1977
URL: http://eprints.nwisrl.ars.usda.gov/322/1/381.pdf

Estimating evapotranspiration from solar radiation
Provedor de dados: 18
Autores: Jensen, Marvin E.; Haise, Howard R.
Tipo: Article
Palavras-chave: Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1965
URL: http://eprints.nwisrl.ars.usda.gov/1249/1/27.pdf

A New Technique for Conserving Water
Provedor de dados: 18
Autores: Humpherys, Allan S.
Tipo: Article
Palavras-chave: Research methodology; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1975
URL: http://eprints.nwisrl.ars.usda.gov/296/1/339.pdf

Discussion: Rectangular Cutthroat Flow Measuring Flumes
Provedor de dados: 18
Autores: Robinson, A.R.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1968
URL: http://eprints.nwisrl.ars.usda.gov/44/1/119.pdf

Furrow flow measurement accuracy
Provedor de dados: 18
Autores: Trout, Thomas J.; Mackey, Bruce E.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1988
URL: http://eprints.nwisrl.ars.usda.gov/496/1/648.pdf

Measurement of Furrow Infiltration Rates Made Easy
Provedor de dados: 18
Autores: Miller, D.E.; Rasmussen, W.W.
Tipo: Article
Palavras-chave: Infiltration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1978
URL: http://eprints.nwisrl.ars.usda.gov/359/1/442.pdf

Soil bulk density sampling for neutron gauge calibration
Provedor de dados: 18
Autores: Dickey, G.L.; Allen, R.G.; Wright, J.L.; Murray, N.R.; Stone, J.F.; Hunsaker, D.J.
Tipo: Conference or Workshop Item
Palavras-chave: Soil; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1993
URL: http://eprints.nwisrl.ars.usda.gov/870/1/806.pdf

Discussion: Analysis of Submergence in Flow Measuring Flumes
Provedor de dados: 18
Autores: Robinson, A.R.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1968
URL: http://eprints.nwisrl.ars.usda.gov/127/1/104.pdf

Unique aspects of modeling irrigation-induced soil erosion
Provedor de dados: 18
Autores: Bjorneberg, D.L.; Kincaid, D.C.; Lentz, R.D.; Sojka, R.E.; Trout, T.J.
Tipo: Article
Palavras-chave: Erosion; Erosion; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2000
URL: http://eprints.nwisrl.ars.usda.gov/103/1/1015.pdf

Measurement of sprinkler droplet size
Provedor de dados: 18
Autores: DeBoer, D.W.; Monnens, M.J.; Kincaid, D.C.
Tipo: Article
Palavras-chave: Sprinkler irrigation; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2001
URL: http://eprints.nwisrl.ars.usda.gov/132/1/1060.pdf

A Hand Operated Undisturbed Core Sampler
Provedor de dados: 18
Autores: Hayden, Clarence W.; Heinemann Jr, William H.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1968
URL: http://eprints.nwisrl.ars.usda.gov/691/1/95.pdf

Effect of moisture and bulk density sampling on neutron moisture gauge calibration
Provedor de dados: 18
Autores: Allen, R.G.; Dickey, G.L.; Wright, J.L.
Tipo: Conference or Workshop Item
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1993
URL: http://eprints.nwisrl.ars.usda.gov/1061/1/810.pdf

Reproducibility of Soil Test Values Obtained by Different Field Sampling Techniques
Provedor de dados: 18
Autores: Leggett, G.E.; Westermann, D.T.; Painter, C.G.
Tipo: Conference or Workshop Item
Palavras-chave: Soil; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1978
URL: http://eprints.nwisrl.ars.usda.gov/1014/1/431.pdf

Translating wind measurements from weather stations to agricultural crops
Provedor de dados: 18
Autores: Allen, Richard G.; Wright, James L.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1997
URL: http://eprints.nwisrl.ars.usda.gov/676/1/934.pdf

Analysis of evaporative flux data for various climates
Provedor de dados: 18
Autores: Katul, G.G.; Cuenca, R.H.; Grebet, P.; Wright, J.L.; Pruitt, W.O.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1992
URL: http://eprints.nwisrl.ars.usda.gov/580/1/775.pdf

A Simple Portable Reflectometer for Field Use
Provedor de dados: 18
Autores: Bowers, S.A.; Hayden, C.W.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1967
URL: http://eprints.nwisrl.ars.usda.gov/619/1/83.pdf

Soil Water Flowmeters with Thermocouple Outputs
Provedor de dados: 18
Autores: Cary, John W.
Tipo: Article
Palavras-chave: Soil water (soil moisture); Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1973
URL: http://eprints.nwisrl.ars.usda.gov/242/1/260.pdf

Using weighing lysimeters to develop evapotranspiration crop coefficients
Provedor de dados: 18
Autores: Wright, James L.
Tipo: Conference or Workshop Item
Palavras-chave: Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1991
URL: http://eprints.nwisrl.ars.usda.gov/1056/1/745.pdf

Micrometeorological Methods as Tools for Increasing Crop Production and Water-Use Efficiency
Provedor de dados: 18
Autores: Wright, James L.
Tipo: Conference or Workshop Item
Palavras-chave: Practical farm efficiency; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1967
URL: http://eprints.nwisrl.ars.usda.gov/1074/1/87.pdf

Development and Evaluation of Evapotranspiration Models for Irrigation Scheduling
Provedor de dados: 18
Autores: Wright, James L.; Jensen, Marvin E.
Tipo: Article
Palavras-chave: Irrigation scheduling; Evapotranspiration; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1978
URL: http://eprints.nwisrl.ars.usda.gov/331/1/393.pdf

Indexes of Sulfur Deficiency in Alfalfa. II. Plant Analyses
Provedor de dados: 18
Autores: Westermann, D.T.
Tipo: Article
Palavras-chave: Alfalfa; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1975
URL: http://eprints.nwisrl.ars.usda.gov/274/1/312.pdf

Insecticide Tests for Control of the Western Bean Cutworm
Provedor de dados: 18
Autores: Blickenstaff, C.C.; Peckenpaugh, R.E.
Little has been published on insecticidal control of the western  bean cutworm on beans and corn. This report summarizes results of  tests in southern Idaho from 1950 to 1980. Of 53 chemicals tested in  the laboratory, 24 showed effectiveness approximately equal to or  better than DDT or carbaryl, which were used as standards. Of 26 materials  applied as sprays to beans with ground equipment, 7 that were  tested most extensively indicate effectiveness equal to or better than  carbaryl, and 9 tested less extensively .indicate a high degree of effectiveness.  Of those materials applied by air to sweet corn, permethrin  provided almost perfect control, Three formulations of carbaryl did  not differ significantly in performance in individual tests, but the...
Tipo: Technical Bulletin
Palavras-chave: Bean / dry bean; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1981
URL: http://eprints.nwisrl.ars.usda.gov/1118/1/477.pdf

All-Electronic Counter/Timer for Current Meters
Provedor de dados: 18
Autores: Fisher, H.D.; Bondurant, J.A.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1974
URL: http://eprints.nwisrl.ars.usda.gov/260/1/288.pdf

Weather Station Siting and Consumptive Use Estimates
Provedor de dados: 18
Autores: Allen, Richard G.; Brockway, Charles E.; Wright, James L.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1983
URL: http://eprints.nwisrl.ars.usda.gov/398/1/501.pdf

Evaluating the surface irrigation soil loss (SISL) model
Provedor de dados: 18
Autores: Bjorneberg, D.L.; Prestwich, C.J.; Evans, R.G.
Although the percentage of surface irrigated land in  the United States is declining, it is still used on  43% of the irrigated land, and 51% of the surface  irrigated land is irrigated down furrows or rows  (USDA, 2004). Water flowing in irrigation furrows often detaches  and transports soil, reducing crop productivity and impairing  off-site water quality. Crop yields were at least 25%  less on fields eroded from over 80 years of furrow irrigation  in south-central Idaho (Carter et al., 1985). Measured soil  loss from furrow irrigated fields in this area varied from 1 to  141 Mg ha-1 annually (Berg and Carter, 1980) while the annual  average soil loss from the entire irrigated tract was 0.46 Mg  ha-1 in 1971 (Brown et al, 1974). This soil, and associated...
Tipo: Article
Palavras-chave: Runoff losses; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2007
URL: http://eprints.nwisrl.ars.usda.gov/70/1/1235.pdf

Calibration of Soil Heat and Water Flux Meters
Provedor de dados: 18
Autores: Cary, J.W.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1971
URL: http://eprints.nwisrl.ars.usda.gov/209/1/197.pdf

Measuring Unsaturated Soil Moisture Flow with a Meter
Provedor de dados: 18
Autores: Cary, J.W.
Tipo: Article
Palavras-chave: Soil water (soil moisture); Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1970
URL: http://eprints.nwisrl.ars.usda.gov/72/1/126.pdf

Drainage Planning by Water Budget Analysis
Provedor de dados: 18
Autores: Worstell, Robert V.
Tipo: Conference or Workshop Item
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1968
URL: http://eprints.nwisrl.ars.usda.gov/916/1/133.pdf

Rejection criteria for open-path Fourier transform infrared spectrometry during continuous atmospheric monitoring
Provedor de dados: 18
Autores: Shao, L.; Pollard, M.J.; Griffiths, P.R.; Westermann, D.T.; Bjorneberg, D.L.
Over 32,000 interferograms measured during open-path Fourier transform infrared (OP/FT-IR) measurements at dairy and hog farms were  evaluated for anomalies. Five types of anomalies could be distinguished: a reduction in the interferogram intensity because of weather-related  optical misalignment; an increase in the amplitude of interferograms measured with too short a path-length that leads to a non-linear detector  response; a periodic interference caused by wind-induced vibrations; the presence of spikes in the interferogram; and an increase in the noise level  of the interferogram (and hence of the spectrum) because of the effect of electrical interference. Prior to testing for the presence of anomalous data,  each interferogram is subjected to a...
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2007
URL: http://eprints.nwisrl.ars.usda.gov/55/1/1217.pdf

Measurement of Plant and Soil Water Status
Provedor de dados: 18
Tipo: Technical Bulletin
Palavras-chave: Soil water (soil moisture); Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1971

Cast-in-Place Concrete Trapezoidal Measuring Flumes
Provedor de dados: 18
Autores: Bondurant, James A.; Humpherys, A.S.; Robinson, A.R.
Tipo: Technical Bulletin
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1969
URL: http://eprints.nwisrl.ars.usda.gov/1108/1/148.pdf

Recirculating furrow infiltrometer design guide
Provedor de dados: 18
Autores: Blair, Allie W.; Trout, Thomas J.
Tipo: Technical Bulletin
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1989
URL: http://eprints.nwisrl.ars.usda.gov/1189/1/672.pdf

Assessing microbial community diversity using amplicon length heterogeneity polymerase chain reaction
Provedor de dados: 18
Autores: Mills, D.K.; Entry, J.A.; Gillevet, P.M.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 2007
URL: http://eprints.nwisrl.ars.usda.gov/46/1/1201.pdf

Field Evaluation of Seepage Measurement Methods
Provedor de dados: 18
Autores: Brockway, C.E.; Worstell, R.V.
Please contact the NWISRL if you have a copy of this publication.
Tipo: Technical Bulletin
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1969

Coefficients for estimating SAR from soil pH and EC data and calculating pH from SAR and EC values in salinity models
Provedor de dados: 18
Autores: Robbins, Charles W.
Tipo: Article
Palavras-chave: Chemistry; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1993
URL: http://eprints.nwisrl.ars.usda.gov/593/1/792.pdf

SWAGMAN-Saltimeter
Provedor de dados: 18
Autores: Meyer, W.S.; Robbins, C.W.; White, R.J.G.
Please contact the NWISRL if you have a copy of this publication.
Tipo: Other
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1995

Scheduling Irrigation with Computers
Provedor de dados: 18
Autores: Jensen, Marvin E.
Tipo: Article
Palavras-chave: Irrigation scheduling; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1969
URL: http://eprints.nwisrl.ars.usda.gov/85/1/153.pdf

Tracing Power and Influence in Networks: Net-Map as a Tool for Research and Strategic Network Planning
Provedor de dados: 31
Autores: Schiffer,   Eva; Waale,   Douglas.
Believing that complex problems call for complex solutions and that stakeholders should have a say in policies that concern them, policymakers have strongly promoted the development of forums and organizations made up of many stakeholders to address complex governance issues such as water management. Both developing and developed countries have instituted multistakeholder water governance bodies on local, national, and international levels. However, while the belief is strong that these integrated bodies should improve governance, how and to what extent that actually happens is still unclear, not only because of the complexity of the matter but also due to a lack of appropriate research tools for the analysis of complex governance systems. This paper...
Tipo: Working or Discussion Paper
Palavras-chave: Ghana; Water Governance; Social Network Analysis; Net-Map; Research methodology; Multi-stakeholder governance; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008
URL: http://purl.umn.edu/42318

Animal experimentation and scientific knowledge: a thought style?
Provedor de dados: 60
Autores: Tréz,Thales de Astrogildo e.
Animal experimentation, besides a research method extensively applied in the production of scientific knowledge, is also considered essential to science and with undeniable historical relevance in advances in human health. In this survey, a questionnaire was applied to a group of researchers involved with research based on non-animal models (n =18), and to another group involved with research based on animal models (n =18). The data analysis was grounded in Ludwik Fleck (1896 -1961) epistemological assumptions. The results suggested that there are at least two thought styles operating in consonance on the same research problem (advances in human health conditions) with significantly different conceptions not only concerning the research practices involved,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal experimentation; Ludwik Fleck; Science/public understanding; Epistemology; Research methodology.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000400004