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Year 2009 Remove constraint 2009: 2009 Subjects irrigated farming Remove constraint irrigated farming: irrigated farming Subjects nitrate nitrogen Remove constraint nitrate nitrogen: nitrate nitrogen

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1. Effect of nitrogen application timing on corn production using subsurface drip irrigation

Description:: Includes references
Author:: Tarkalson, David D. , Van Donk, Simon J. , Petersen, James L.
Subject:: Zea mays , corn , irrigated farming , microirrigation , subsurface irrigation , fertigation , nitrogen fertilizers , fertilizer application , fertilizer rates , application timing , soil fertility , nitrate nitrogen , grain yield , plant growth , Nebraska
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2009

2. Long-Term Observations of Vadose Zone and Groundwater Nitrate Concentrations under Irrigated Agriculture

Description:: Includes references
Author:: Derby, Nathan E. , Casey, Francis X.M. , Knighton, Raymond E.
Subject:: irrigated farming , sprinkler irrigation , Zea mays , corn , Solanum tuberosum , potatoes , Glycine max , soybeans , leaching , nitrate nitrogen , groundwater contamination , vadose zone , nitrogen fertilizers , fertilizer rates , autumn , North Dakota
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2009

3. Use of a new GIS nitrogen index assessment tool for evaluation of nitrate leaching across a Mediterranean region

Description:: Includes references
Author:: Paz, Jose M. De , Delgado, Jorge A. , Ramos, Carlos , Shaffer, Marvin J. , Barbarick, Kenneth K.
Subject:: nitrogen , nutrient management , nitrogen fertilizers , fertilizer application , agricultural management models , geographic information systems , simulation models , mathematical models , leaching , nitrate nitrogen , irrigated farming , irrigated soils , balance studies , nutrient uptake , crops , Spain
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2009