000			03465nab a22005057a 4500
001			G96820
003			MX-TxCIM
005			20240216162443.0
008			210721s2012 ne |||p|op||| 00| 0 eng d
022	0		_a0048-9697
024	8		_ahttps://doi.org/10.1016/j.scitotenv.2012.05.029
040			_aMX-TxCIM
041			_aeng
090			_aCIS-6730
100	1		_9470 _aDendooven, L.
245	1	0	_aGreenhouse gas emissions under conservation agriculture compared to traditional cultivation of maize in the central highlands of Mexico
260			_aAmsterdam (Netherlands) : _bElsevier, _c2012.
500			_aPeer review
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0048-9697
520			_aIn 1991, the ‘International Maize and Wheat Improvement Center’ (CIMMYT) started a field experiment in the rain fed Mexican highlands to investigate conservation agriculture (CA) as a sustainable alternative for conventional maize production practices (CT). CT techniques, characterized by deep tillage, monoculture and crop residue removal, have deteriorated soil fertility and reduced yields. CA, which combines minimum tillage, crop rotations and residue retention, restores soil fertility and increases yields. Soil organic matter increases in CA compared to CT, but increases in greenhouse gas emissions (GHG) in CA might offset the gains obtained to mitigate global warming. Therefore, CO2, CH4 and N2O emissions, soil temperature, C and water content were monitored in CA and CT treatments in 2010–2011. The cumulative GHG emitted were similar for CA and CT in both years, but the C content in the 0–60 cm layer was higher in CA (117.7 Mg C ha− 1) than in CT (69.7 Mg C ha− 1). The net global warming potential (GWP) of CA (considering soil C sequestration, GHG emissions, fuel use, and fertilizer and seeds production) was − 7729 kg CO2 ha− 1 y− 1 in 2008–2009 and − 7892 kg CO2 ha− 1 y− 1 in 2010–2011, whereas that of CT was 1327 and 1156 kg CO2 ha− 1 y− 1. It was found that the contribution of CA to GWP was small compared to that of CT.
536			_aConservation Agriculture Program
546			_aText in English
591			_aCIMMYT Informa No. 1801|Elsevier
594			_aINT2813|INT3307
595			_aCSC
650		7	_aGreenhouse gas emissions _2AGROVOC _98210
650		7	_aGlobal warming _2AGROVOC _93012
650		7	_aSoil _2AGROVOC _94828
650		7	_aCarbon _2AGROVOC _92601
650		7	_aNitrogen _2AGROVOC _92912
650		7	_aSoil Water Content _2AGROVOC _99061
700	1		_921535 _aGutiérrez-Oliva, V.F.
700	1		_915812 _aPatiño-Zuñiga, L.
700	1		_9663 _aRamirez Villanueva, D.A.
700	1		_aVerhulst, N. _gFormerly Sustainable Intensification Program _gFormerly Integrated Development Program _gSustainable Agrifood Systems _8INT3307 _9916
700	1		_9188 _aLuna Guido, M.
700	1		_aMarsch, R. _93465
700	1		_93472 _aMontes-Molina, A.J.
700	1		_920263 _aGutierrez-Miceli, F.A.
700	1		_95118 _aVásquez-Murrieta, M.S.
700	1		_aGovaerts, B. _gSustainable Intensification Program _gIntegrated Development Program _gDG's Office _8INT2813 _9860
773	0		_tScience of the Total Environment _gv. 431, no. 1, p. 237-244 _dAmsterdam (Netherlands) : Elsevier, 2012. _x0048-9697
856	4		_uhttps://hdl.handle.net/20.500.12665/53 _yAccess only for CIMMYT Staff
942			_cJA _2ddc _n0
999			_c29258 _d29258