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| Registros recuperados: 59 | |
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| Moore, Amber; Hines, Steve; Brown, B.; Falen, Christi; de Haro Marti, M.E.; Chahine, Mireille; Norell, Rick; Ippolito, J.A.; Parkinson, Stuart; Satterwhite , Megan. |
| Growers working with manured soils o� en rely on soil test information when developing nutrient management for their crop, especially when manure application information is unavailable. Nutrient-enriched soils, like manured soils, can trigger nutrient de� ciencies and toxicities due to plant–soil nutrient interactions. � e goal of the study was to determine correlations between soil test and plant tissue nutrient concentrations for irrigated corn silage crops (Zea mays L. subsp. mays) with varying nutrient concentrations unique to dairy manure-enriched calcareous soils. Whole plant and soil samples were collected from 39 cooperator corn silage � elds at harvest over a 2-yr period throughout the Snake River Plain region of southern Idaho. Soils were... |
| Tipo: Article |
Palavras-chave: Application guidelines; Calcareous soil; Phosphorous. |
| Ano: 2014 |
URL: http://eprints.nwisrl.ars.usda.gov/1514/1/1478.pdf |
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| Tarkalson, D.D.; Bjorneberg, D.L.. |
| Nutrient placement options with strip tillage (ST) can potentially improve plant nutrient utilization and increase crop yield compared to conventional fertilizer placement practices under conventional tillage (CT). The effects of tillage practice and nitrogen (N) and phosphorus (P) placement on grain yield, biomass yield (whole plant, sum of grain, cobs, and stover), and N and P uptake of field corn (Zea mays L.) were assessed on four sites during 2007 and 2009 at the USDA-ARS Northwest Irrigation & Soils Research Laboratory at Kimberly, ID. During each year, two locations (eroded and not eroded from furrow irrigation) were utilized as study locations. Band placement of fertilizer with ST increased corn grain yield by 12.5 percent (689 kg per ha) and... |
| Tipo: Article |
Palavras-chave: Fertilizer; Soil; Nitrogen; Phosphorous. |
| Ano: 2010 |
URL: http://eprints.nwisrl.ars.usda.gov/1383/1/1358.pdf |
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| 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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| James, D.W.; Leggett, G.E.; Dow, A.I.. |
| To facilitate irrigation in central Washington, land is leveled or smoothed on a broad scale. As a result, the calcareous and extremely infertile subsoils are exposed and used directly as a medium for plant growth. Phosphorus fertilizer requirements of exposed subsoils were determined by measuring crop yield and P uptake on plots that were fertilized in the current and one, two or three preceding seasons. Annual crops used as indicators of P availability at three sites were field beans, Sudangrass and sugar beets. A supplementary experiment involved fertilization of a previously established alfalfa crop. Crop growth and P uptake results were correlated with sodium bicarbonate soil testing |
| Tipo: Technical Bulletin |
Palavras-chave: Calcareous soil; Fertility; Phosphorous; Mass Import - autoclassified (may be erroneous). |
| Ano: 1967 |
URL: http://eprints.nwisrl.ars.usda.gov/1133/1/105.pdf |
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| Tarkalson, D.D.; Bjorneberg, D.L.. |
| The use of strip tillage and other conservation tillage practices are used to conserve soil and soil water through residue management and reduce tillage costs in many areas of the Corn Belt. However, in the Pacific Northwest these tillage practices are less common. Strip tillage is becoming more common in the sugar beet industry in southern Idaho and due to the high dairy cow populations, corn production is increasing. The dual use of strip tillage for sugar beet and corn production will likely continue to develop, increasing the need for strip tillage best management practices in this region. In this study we evaluated the effects of common and logical nitrogen and phosphorus placements with strip tillage and conventional tillage on grain yield on four... |
| Tipo: Article |
Palavras-chave: Tillage; Nitrogen; Phosphorous. |
| Ano: 2010 |
URL: http://eprints.nwisrl.ars.usda.gov/1388/3/1363.pdf |
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| Kebreab, Ermias; Hansen V, Anja; Leytem, A.B.. |
| Phosphorus (P) is an essential mineral that needs to be supplied in sufficient quantities for maintenance and growth and milk production in dairy cattle. However, over 60% of the P consumed can be excreted in faeces with a potential to cause environmental pollution. Concern over higher levels of P in intensively managed livestock systems has led to legislation such as the Water Framework Directive in the European Union. In this manuscript, several methods of reducing P pollution are discussed. A major source of environmental P pollution has been overfeeding P mainly due to addition of ‘safety margin’ over the animal’s requirement and concerns related to fertility. Matching the animal’s requirement and feeding in groups so that animals at the same... |
| Tipo: Article |
Palavras-chave: Animal; Manure; Phosphorous. |
| Ano: 2013 |
URL: http://eprints.nwisrl.ars.usda.gov/1512/1/1476.pdf |
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| Leytem, A.B.; Bjorneberg, D.L.. |
| Intensification of the dairy industry in southern Idaho had led to the over-application of manures and a buildup of soil phosphorus (P) which is a potential threat to water quality in the region. As the use of alum has been shown to reduce both soluble manure P and runoff P from alum treated manures, the objective of this study was to determine if surface applications of alum to dairy manure and compost prior to soil incorporation would reduce P losses under furrow irrigation on a calcareous soil. The effects of manure, compost, and fertilizer application with and without alum treatment on soil P, runoff P and aluminum (Al) under furrow irrigation, crop yield, tissue P concentrations and P removal over a four year period were investigated in Kimberly, ID,... |
| Tipo: Article |
Palavras-chave: Manure; Calcareous soil; Phosphorous. |
| Ano: 2009 |
URL: http://eprints.nwisrl.ars.usda.gov/1432/1/1332.pdf |
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| Registros recuperados: 59 | |
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