Search National Agricultural Library Digital Collections
Displaying
all 2 items
start over
- 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
- Description:
- Includes references
- Author:
- Jaynes, D.B. , Colvin, T.S. , Karlen, D.L. , Cambardella, C.A. , Meek, D.W.
- Subject:
- water pollution , subsurface drainage , Zea mays , Glycine max , crop production , crop yield , nitrogen fertilizers , nitrates , leaching , losses from soil , groundwater contamination , quantitative analysis , agricultural soils , water management , application rate , Iowa
- Collection:
- Journal Articles, USDA Authors, Peer-Reviewed
- Year:
- 2001