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Straw management, crop rotation and nitrogen source effect on carbon and nitrogen dynamics: A laboratory study

Author: Montoya-Gonzalez, A.
Author: Gonzalez-Navarro, O.E.
Author: Govaerts, B.
Author: Sayre, K.D.
Author: Estrada, I.
Author: Luna-Guido, M.
Author: Ceja-Navarro, J.A.
Author: Patiño-Zuñiga, L.
Author: Marsch, R.
Author: Dendooven, L.
Year: 2009
Abstract: Straw incorporation, crop rotation and organic fertilizer applications have been proposed to counter the negative effects of straw burning, inorganic N fertilizer application and intensive agriculture practices for wheat production in the state of Sonora (México). A laboratory study was done to investigate how these alternative agriculture practices applied for 9 years affected carbon dioxide (CO2), nitrous oxide (N2O) and nitrogen (N2) emissions and inorganic N in soil. Emission of CO2 decreased 1.2 times in soil burned compared to soil where residue was incorporated, but emissions of N2 increased 4.1 times and the increase in inorganic N or the N mineralization rate 1.4 times. Including Sesbania spp. in the crop rotation reduced N mineralization rate 1.2 times when residue was burned, but increased it 1.5 times when it was incorporated compared to clean fallow or the cultivation of maize. Fertilizing soil with urea increased the N mineralization rate 4.9 times and the N2O emission 2 times while chicken manure increased it 11.4 times and 3.7 times, respectively, compared to the unamended soil when residue was burned. It was found that burning of crop residue increased N mineralization and N2 emissions, but decreased microbial activity. Addition of chicken manure increased emissions of N2O and CO2 and concentrations of NO3−
Language: English
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.
Type: Article
Region: Global
Pages: 243-253
Issue: 1-Feb
Volume: 325
DOI: 10.1007/s11104-009-9975-3
Keywords: C and N mineralization
Keywords: Chicken manure
Keywords: Clean fallow
Keywords: N2O emissions
Keywords: N2 emission
Keywords: Sesbania spp
dc.source.journal: Plant and Soil

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  • Conservation Agriculture for CIMMYT Staff
    Conservation agriculture including topics on cropping systems, agronomy, soil, mechanization, precision agriculture, etc. This collection publications is only accessible by CIMMYT staff.

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