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1. Comparison of estimates of first-year dairy manure nitrogen availability or recovery using nitrogen-15 and other techniques

Description:: Includes references
Author:: Munoz, G.R. , Kelling, K.A. , Powell, J.M. , Speth, P.E.
Subject:: dairy cattle , cattle manure , nitrogen fertilizers , nitrogen , nutrient availability , Zea mays , corn , prediction , methodology , isotope labeling , nutrient uptake , grain yield , application timing , regression analysis , equations , mathematical models , Wisconsin
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2004

2. Evaluation of the CEAS trend and monthly weather data models for corn yields in Iowa, Illinois, and Indiana

Author:: Kestle, Richard A. , United States Dept. of Agriculture. Statistical Reporting Service. Statistical Research Division.
Subject:: Meteorology, Agricultural , Iowa , Mathematical models , Meteorology, Agricultural , Illinois , Mathematical models , Meteorology, Agricultural , Indiana , Mathematical models , Crops and climate , Iowa , Mathematical models , Crops and climate , Illinois , Mathematical models , Crops and climate , Indiana , Mathematical models , Crop yields , Iowa , Mathematical models , Crop yields , Illinois , Mathematical models , Crop yields , Indiana , Mathematical models , Corn , Iowa , Corn , Illinois , Corn , Indiana , agrometeorology , climate models , crop yield , corn , Zea mays , mathematical models , model validation , crop models , regression analysis , Iowa , Illinois , Indiana
Year:: 1982