000			03539naa a22003737a 4500
001			G90172
003			MX-TxCIM
005			20240506224032.0
008			240506s2006 gw ||||| |||| 00| 0 eng d
040			_aMX-TxCIM
041			_aeng
090			_aCIS-5120
100	1		_aSayre, K.D. _8CSAY01 _94612 _gSustainable Intensification Program
245	1	0	_aComparison of alternative conservation agriculture technologies for rainfed production in the highlands of central Mexico
260			_aKiel (Germany) : _bInternational Soil Tillage Research Organisation, _c2006.
340			_aComputer File|Printed
520			_aRainfed cropping predominates in the highlands of central Mexico, with varying average annual rainfall ranging geographically from 350 to 1000 mm. Most rainfall occurs during the 4-6 month summer season and is typified by erratic, heavy showers commonly followed by unpredictable dry periods. Dry, cool winter seasons, essentially without cropping unless irrigation is available, follow the rainy summer season. Maize (Zea mays L.) is the main crop followed by dry beans (Phaeolus vulgaris L.), wheat (Triticum aestivum L.), barley (Hordeum vulgare L.) and oat (Avena sativa L.) among others. Most farmers are small-scale, near subsistence producers and almost all farmers use tillage, remove/burn crop residues and carry out extensive mono-cropping. These traditional cropping practices have led to unstable and unsustainable crop productivity with associated degradation of most soil physical, biological and chemical parameters. There has been negligible farmer adoption of Conservation Agriculture (CA) technologies, which entail marked tillage reduction, surface retention of adequate crop residues and diversified crop rotations. Adoption of CA technologies in other countries with similar rainfed production systems has led to reduced production costs and enhanced crop yield and yield stability largely owing to more efficient water use as well as reversals in chronic soil degradation. The findings reported here compare a range of alternative CA technologies involving different seeding systems (flat planting versus raised bed planting), tillage levels (conventional versus zero reduced/zero tillage), crop residue management options (full removal, full retention and partial retention) and different crop rotations on crop yield, yield stability and economic viability.
536			_aConservation Agriculture Program|Genetic Resources Program
546			_aText in English
594			_aINT2813|CSAY01|INT2602|I1705038
650		7	_aMaize _2AGROVOC _91173
650		7	_aWheat _2AGROVOC _91310
650		7	_aConventional tillage _2AGROVOC _98383
650		7	_aZero tillage _2AGROVOC _91753
650		7	_91064 _aCrop residues _2AGROVOC
650		7	_926289 _aRaised beds _2AGROVOC
700	1		_aGovaerts, B. _gSustainable Intensification Program _gIntegrated Development Program _gDG's Office _8INT2813 _9860
700	1		_aMartinez, A. _921154
700	1		_9845 _aMezzalama, M. _gGenetic Resources Program _8INT2602
700	1		_aMartínez, M. _927303
711	2		_933879 _aInternational Soil Tillage Research Organisation Triennial Conference _n(17th : _d28 August – 3 September, 2006 : _cKiel, Germany)
773	0		_dKiel (Germany) : International Soil Tillage Research Organisation, 2006. _gp. 1012-1018 _tInternational Soil Tillage Research Organisation, ISTRO; Triennial Conference: Sustainability - Its Impact on Soil Management and Environment 17; Kiel, Germany, 28 Aug - 5 Sep, 2006
942			_cCPA _2ddc _n0
999			_c6108 _d6108