SOIL CARBON DYNAMICS AND CROPPING PRACTICES R. E. Lucas is professor of crop and soil sciences, J. B. Holtman is associate professor of agricultural engineering and L. J. Connor is professor of agricultural economics, Michigan State Univ., East Lansing, Mich. 48824. This research was financed by the Mich. Agri. Expt. Sta. and a grant from NSF-RANN entitled: Design and Management of Rural Ecosystems. Mich. Agri. Expt. Sta. Journal Article No. 7696
Autor: | L.J. Connor, R.E. Lucas, J.B. Holtman |
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Rok vydání: | 1977 |
Předmět: | |
DOI: | 10.1016/b978-0-12-454250-1.50029-0 |
Popis: | A model of soil carbon dynamics is described which takes account of decomposition of soil organic matter, losses through erosion, and input from crop residues and manure. Results are presented on the equilibrium soil carbon content for various management practices, yield levels, and soil characteristics. Estimates are given for the increase in grain yield and nitrogen fertilizer use efficiency for different levels of soil organic matter. |
Databáze: | OpenAIRE |
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