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Registros recuperados: 30
Primeira ... 12 ... Última
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Imprime registro no formato completo
Automated Imhoff cone calibration and soil loss/infiltration analysis for furrow irrigation studies NWISRL
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
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Automated Pumping Station for Reuse of Irrigation Runoff Water NWISRL
Bondurant, J.A..
Tipo: Conference or Workshop Item Palavras-chave: Runoff losses; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1969 URL: http://eprints.nwisrl.ars.usda.gov/977/1/146.pdf
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Biopolymer additives for the reduction of soil erosion losses during irrigation NWISRL
Orts, W.J.; Sojka, R.E.; Glenn, G.M.; Gross, R.A..
Tipo: Conference or Workshop Item Palavras-chave: Erosion; Runoff losses; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 2001 URL: http://eprints.nwisrl.ars.usda.gov/937/1/1040.pdf
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Biopolymer additives to reduce erosion-induced soil losses during irrigation NWISRL
Orts, William J.; Sojka, Robert E.; Glenn, Gregory M..
Tipo: Article Palavras-chave: Erosion; Runoff losses; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 2000 URL: http://eprints.nwisrl.ars.usda.gov/95/1/1003.pdf
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Evaluating the surface irrigation soil loss (SISL) model NWISRL
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
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Evaluating WEPP-predicted infiltration, runoff, and soil erosion for furrow irrigation NWISRL
Bjorneberg, D.L.; Trout, T.J.; Sojka, R.E.; Aase, J.K..
Tipo: Article Palavras-chave: Erosion; Infiltration; Runoff losses; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 1999 URL: http://eprints.nwisrl.ars.usda.gov/717/1/997.pdf
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Evaluation of Potential Runoff and Erosion of Four Center Pivot Irrigation Sprinklers NWISRL
King, B.A.; Bjorneberg, D.L..
The operational characteristics of center pivot sprinklers are well documented but few studies have been conducted to evaluate the effects that operating characteristics of a particular sprinkler have on infiltration, runoff, and erosion for specific soil types. The objective of this study was to evaluate potential runoff and erosion from four commercial center pivot sprinklers on three widely distributed, south central Idaho soils. A modified commercial irrigation boom system was used to emulate center pivot irrigation on experimental runoff plots. Sprinklers used in the study were: 1) Nelson R3000 with brown plate, 2) Nelson R3000 with red plate, 3) Nelson S3000 with purple plate, and 4) Senninger I-Wob with standard 9-groove plate. Based on...
Tipo: Article Palavras-chave: Sprinkler irrigation; Erosion; Runoff losses; Center pivot.
Ano: 2011 URL: http://eprints.nwisrl.ars.usda.gov/1424/1/1394.pdf
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Furrow Erosion and Topsoil Losses NWISRL
Everts, Christopher J.; Carter, David L..
Tipo: Technical Bulletin Palavras-chave: Erosion; Runoff losses; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 1981 URL: http://eprints.nwisrl.ars.usda.gov/1163/1/459.pdf
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Furrow irrigation water-quality effects on soil loss and infiltration NWISRL
Lentz, R.D.; Sojka, R.E.; Carter, D.L..
Tipo: Article Palavras-chave: Infiltration; Runoff losses; Mass Import - autoclassified (may be erroneous).
Ano: 1996 URL: http://eprints.nwisrl.ars.usda.gov/652/1/891.pdf
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Influence of polyacrylamide application to soil on movement of microorganisms in runoff water NWISRL
Sojka, R.E.; Entry, J.A..
Tipo: Article Palavras-chave: Runoff losses; Application Strategies; Runoff; Mass Import - autoclassified (may be erroneous).
Ano: 2000 URL: http://eprints.nwisrl.ars.usda.gov/99/1/1010.pdf
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Monitoring software for pollutant components in furrow irrigation runoff NWISRL
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
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Monitoring software for pollutant components in furrow irrigation runoff NWISRL
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
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Multiple polyacrylamide applications for controlling sprinkler irrigation runoff and erosion NWISRL
Bjorneberg, D.L.; Aase, J.K..
Tipo: Article Palavras-chave: Polyacrylamide; Runoff losses; Sprinkler irrigation; Application Strategies; Erosion control; Runoff; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 2000 URL: http://eprints.nwisrl.ars.usda.gov/109/1/1020.pdf
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Nutrient losses from an irrigated watershed in southern Idaho NWISRL
Bjorneberg, D.L.; Ippolito, J.A.; Koehn, A.C..
Water, sediment and nutrients flowing into and out of the 82,000 ha Twin Falls,ID irrigation tract were measured from 2005 to 2008. Approximately 80% of the water flowing into the watershed was irrigation water diverted from the Snake River. About 40% of the watershed inflow returned to the Snake River. Much of this return flow was water from subsurface drain tiles and tunnels that drain shallow groundwater. Converting from furrow to sprinkler irrigation, improved irrigation management, and constructed sediment ponds have reduced sediment loss from 460 kg/ha in 1971 to <100 kg/ha in 2005. In 2007 and 2008, more sediment and phosphorus entered the watershed than returned to the Snake River. Diverting irrigation water into the watershed removed 6300 Mg of...
Tipo: Conference or Workshop Item Palavras-chave: Irrigation control; Runoff losses; Nutrient losses; Nutrients; Soil.
Ano: 2013 URL: http://eprints.nwisrl.ars.usda.gov/1571/1/1527.pdf
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Polyacrylamide (PAM) for irrigation runoff management NWISRL
Sojka, R.E.; Lentz, R.D.; Entry, J.A.; Bjorneberg, D.L.; Morishita, D..
Tipo: Conference or Workshop Item Palavras-chave: Runoff losses; Runoff; Mass Import - autoclassified (may be erroneous).
Ano: 2007 URL: http://eprints.nwisrl.ars.usda.gov/963/1/1215.pdf
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Polyacrylamide preparations for protection of water quality threatened by agricultural runoff contaminants NWISRL
Entry, James A.; Sojka, R.E.; Watwood, Maribeth; Ross, Craig.
Tipo: Article Palavras-chave: Polyacrylamide; Runoff losses; Runoff; Polyacrylamide; Mass Import - autoclassified (may be erroneous).
Ano: 2002 URL: http://eprints.nwisrl.ars.usda.gov/141/1/1079.pdf
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Imprime registro no formato completo
Quality of Surface Irrigation Runoff Water NWISRL
Bondurant, James A..
Tipo: Article Palavras-chave: Runoff losses; Mass Import - autoclassified (may be erroneous).
Ano: 1971 URL: http://eprints.nwisrl.ars.usda.gov/217/1/219.pdf
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Reducing nutrient losses in runoff from furrow irrigation NWISRL
Lentz, R.D.; Westermann, D.T.; Lehrsch, G.A..
Few studies have comprehensively examined nutrient losses in runoff from furrow-irrigated fields, but the rising cost of fertilizer and finite nature of the resource encourages further research. A 2-yr experiment measured runoff losses of sediment, particulate P and N, and dissolved NO3-N, NH4-N, K, and reactive P (DRP) from fertilized, manured, or non-amended fields. Average nutrient losses were substantial, including 15.6 lbs ac/yr dissolved N, P, and K and 73.6 lbs ac/yr particulate N and P. The cost or replacing these nutrients with inorganic fertilizers was not trivial, at $54.69 ac/yr. Relative to non-amended soil, manure increased dissolved K, NO3-N, and DRP in runoff by 2.1x, 1.5x, and 2.7x, respectively. Other experiments evaluated the...
Tipo: Conference or Workshop Item Palavras-chave: Furrow irrigation; Runoff losses; Nutrients; Sediment.
Ano: 2013 URL: http://eprints.nwisrl.ars.usda.gov/1518/1/1482.pdf
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Removal of vegtative clippings reduces dissolved phosphorus loss in runoff NWISRL
Ippolito, J.A.; Spackman, R.; Entry, J.A.; Sojka, R.E..
Phosphorus-containing sediment entering surface water may degrade water quality and promote eutrophication. Grass is sometimes planted as a vegetated filter strip buffer along vulnerable receiving water to trap sediment and reduce the severity of phosphorus nutrient loading. However, eutrophication is still a problem in some waterways due to dissolved phosphorus leaching from senesced vegetation in grassed areas, independent of trapped sediment. A rainfall simulator (96 mm/h) was used to study the vegetative conditions under which losses of total dissolved phosphorus and filterable reactive phosphorus leaching are likely. Boxes containing a Portneuf silt loam soil (Xeric Haplocalcid) were planted with annual ryegrass (Lolium perenne) and cut at two...
Tipo: Article Palavras-chave: Runoff losses; Phosphorous.
Ano: 2014 URL: http://eprints.nwisrl.ars.usda.gov/1545/1/1503.pdf
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Research Seeks Answers to Runoff Losses NWISRL
Humpherys, A.S..
Tipo: Article Palavras-chave: Runoff losses; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1975 URL: http://eprints.nwisrl.ars.usda.gov/302/1/352.pdf
Registros recuperados: 30
Primeira ... 12 ... Última
 

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