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Subjects corn Remove constraint corn: corn Subjects mathematical models Remove constraint mathematical models: mathematical models Subjects isotope labeling Remove constraint isotope labeling: isotope labeling

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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. Determining carbon isotope signatures from micrometeorological measurements: Implications for studying biosphere-atmosphere exchange processes

Description:: Includes references
Author:: Griffis, T. J. , Zhang, J. , Baker, J. M. , Kljun, N. , Billmark, K.
Subject:: ecosystems , C3 plants , Glycine max , soybeans , C4 plants , Zea mays , corn , carbon dioxide , biogeochemical cycles , stable isotopes , isotope labeling , gas exchange , soil-plant-atmosphere interactions , seasonal variation , quantitative analysis , mathematical models , simulation models , Minnesota
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2007