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

Content Provider	Springer Nature Link
Author	Montoya González, A. González Navarro, O. E. Govaerts, B. Sayre, K. D. Estrada, I. Luna Guido, M. Ceja Navarro, J. A. Patiño Zúñiga, L. Marsch, R. Dendooven, L.
Copyright 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 (CO$_{2}$), nitrous oxide (N$_{2}$O) and nitrogen (N$_{2}$) emissions and inorganic N in soil. Emission of CO$_{2}$ decreased 1.2 times in soil burned compared to soil where residue was incorporated, but emissions of N$_{2}$ 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 N$_{2}$O 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 N$_{2}$ emissions, but decreased microbial activity. Addition of chicken manure increased emissions of N$_{2}$O and CO$_{2}$ and concentrations of NO 3 − .
Starting Page	243
Ending Page	253
Page Count	11
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	325
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-04-04
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	C and N mineralization Chicken manure Clean fallow N$_{2}$O emissions N$_{2}$ emission Sesbania spp. Ecology Plant Physiology Soil Science & Conservation Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

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