000			03428nab a22003857a 4500
001			G89126
003			MX-TxCIM
005			20230918220229.0
008			211103s2006 ne |||p|op||| 00| 0 eng d
022			_a1573-5036 (Online)
022			_a0032-079X
024	8		_ahttps://doi.org/10.1007/s11104-005-0436-3
040			_aMX-TxCIM
041			_aeng
090			_aCIS-4721
100	1		_aMonneveux, P. _920326
245	1	0	_aEffect of zero tillage and residues conservation on continuous maize cropping in a subtropical environment (Mexico)
260			_aDordrecht (Netherlands) : _bSpringer, _c2006.
340			_aPrinted|Computer File
500			_aPeer review
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0032-079X
520			_aThe effects of zero tillage and residue conservation in continuous maize-cropping systems are poorly documented, especially in the tropics, and are expected to vary highly with climatic conditions and nitrogen availability. In the present study, maize was cultivated during the wet and dry seasons in central Mexico for three consecutive years, under different treatments combining tillage with residue management techniques and with nitrogen rates. In some treatments, maize was also intercropped with jackbean, Canavalia ensiformis L. (DC). Yield and yield components as well as physiological traits and soil characteristics were assessed during the wet and dry seasons for the third year of cultivation. During the wet season, zero tillage was associated with less biomass and grain yield. Leaf chlorophyll concentration was smaller under zero tillage, suggesting less nitrogen uptake. Both zero tillage and residue conservation reduced early growth and strongly increased ear rot. During the dry season, zero tillage was associated with greater root mass, as measured by electrical capacitance. Residue conservation decreased the anthesis-silking interval, suggesting better water uptake. There was, however, no significant effect of tillage or residue management practices on yield. Zero tillage was found to be associated with increased soil bulk density, nitrogen concentration and microbial biomass organic carbon. Residue conservation increased soil carbon concentration as well as microbial biomass organic carbon. Intercropping with jackbean and conservation of its residues in addition to maize residues increased soil nitrogen concentration. Further investigation may provide more information on the factors related to zero tillage and residue conservation that affect maize early growth, and determine to which extent the observed modifications of soil chemical and physical properties induced by conservation tillage will further affect maize yield.
546			_aText in English
591			_aSpringer|0603
650		7	_2AGROVOC _931640 _aCanavalia ensiformis
650		7	_2AGROVOC _96135 _aIntercropping
650		7	_2AGROVOC _91064 _aCrop residues
650		7	_2AGROVOC _91753 _aZero tillage
700	1		_aQuillérou, E. _924649
700	1		_aSánchez Cano, C. _98515 _gGenetic Resources Program _81273525
700	1		_aLopez-Cesati, J. _924650
773	0		_tPlant and Soil _n634058 _gv. 279, no. 1-2, p. 95-105 _x1573-5036 _dDordrecht (Netherlands) : Springer, 2006. _wG444682
856	4		_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/866
942			_cJA _2ddc _n0
999			_c26211 _d26211