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Subjects application rate Remove constraint application rate: application rate Subjects soil analysis Remove constraint soil analysis: soil analysis Year 2001 Remove constraint 2001: 2001

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1. An assessment of soil nitrogen testing considering the carry-over effect

Description:: Includes references
Author:: Huang, W.Y. , Lu, Y.C. , Uri, N.D.
Subject:: soil analysis , nitrogen , crop production , fertilizer application , nitrogen fertilizers , fertilizer requirements , economic analysis , costs and returns , application rate , decision support systems , simulation models , equations , optimization , crop yield , environmental fate , leaching , environmental protection , agricultural runoff , nutrient management , Maryland
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2001

2. Soil phosphorus fractions in solution: influence of fertiliser and manure, filtration and method of determination

Description:: Includes references
Author:: McDowell, R.W. , Sharpley, A.N.
Subject:: silt loam soils , poultry manure , cattle manure , superphosphate , phosphorus , soil fertility , organophosphorus compounds , filtration , soil analysis , nutrient availability , colloids , soil solution , application rate
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2001