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Estimating crop residue decomposition coefficients using substrate-induced respiration (1997)

by H H Schomberg, J L Steiner
Venue:Soil Biol. Biochem
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Predicting Crop Residue Decomposition and Cover for Wind Erosion Simulation

by Paul W. Unger
"... Improved crop residue management can provide efficient and cost-effective practices to address land resource issues relating to soil conservation, water quality, sustainability, and enhanced nutrient cycling (Unger, 1994; Steiner, 1994). A recent survey of U.S.A. tillage practices by the ..."
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Improved crop residue management can provide efficient and cost-effective practices to address land resource issues relating to soil conservation, water quality, sustainability, and enhanced nutrient cycling (Unger, 1994; Steiner, 1994). A recent survey of U.S.A. tillage practices by the
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...would allow the model to be run with minimal input from the user. When possible, it would be desirable to develop equations to estimate coefficient values based on simple laboratory procedures (e.g., =-=Schomberg and Steiner, 1997-=-) or standard residue quality parameters, to reduce the cost of adding new crops or modifying coefficients for specific genotypes of a crop. In addition, remote sensing and other new technologies (Dau...

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by Andrea Belgrano, Ursula M. Scharler, Jennifer Dunne, Robert E. Ulanowicz
"... Oxford University Press is a department of the University of Oxford. It furthers the University’s objective of excellence in research, scholarship, and education by publishing worldwide in ..."
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Oxford University Press is a department of the University of Oxford. It furthers the University’s objective of excellence in research, scholarship, and education by publishing worldwide in
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...um of body size (Gordon et al. 1972). For each heterotoph, a unit random number was drawn to assign a respiration rate within the appropriate range. Based on numerous sources (Morris and Lajtha 1986; =-=Schomberg and Steiner 1997-=-; Asaeda and Nam 2002; Van Santvoort et al. 2002; Qualls and Richardson 2003; Salovius and Bonsdorff 2004), detritus was given an annual decay rate ranging from 6.6% to 164%. In the case of the unstru...

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...ificant differences inmost litter quality parameters aswell as inC andN turnover rates. Similar results were reported for higher TON contents and TC/TON ratio of alfalfa residues than wheat residues (=-=Schomberg and Steiner, 1997-=-). Alfalfa residue appeared to have a higher quality than wheat residue. Alfalfa residue had also higher cumulative C and N mineralization in laboratory incubation studies, correlating well with chemi...

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