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020			_a970-648-116-8
040			_aMX-TxCIM
072		0	_aE16
072		0	_aF01
090			_aLook under series title
100	1		_aLabios, R.V. _uAsian Regional Maize Workshop, 8: New Technologies for the New Millennium
110	0		_aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico, DF (Mexico)
111	2		_aProceedings of the Asian Regional Maize Workshop _cBangkok (Thailand) _d5-8 Aug 2002
245	0	0	_aTillage practices in corn production
260			_aMexico, DF (Mexico) _bCIMMYT : _c2004
300			_ap. 296-306
340			_aPrinted
520			_aThe potential of conservation tillage systems to improve corn yields while reducing production costs and conserving soil and water resources was tested through on-farm trials in two sites, namely: San Jose, Mindoro Occidental and Calabanga, Camarines Sur. A total of 9 farmer-partners cooperated in the conduct of the trial. Treatments include conventional tillage, minimum tillage, zero tillage and farmer's tillage practices, which are tested in factorial with variety or fertilizer. Results in Mindoro reveal that variation in grain yield is mainly due to tillage practices. Moreover, conservation tillage practices i.e., zero and minimum tillage, resulted to the higher grain yield of about 5.291 ha-1 in Mindoro. In the case of Camarines Sur, yield was not significantly affected by any of the treatments combinations applied (tillage x variety). Zero tillage obtained higher grain yield (2.88 t ha-1) followed closely by minimum tillage with 2.79 t ha-1. From these trials it is evident that conservation tillage management generally resulted to higher grain yield compared with the farmer's tillage practice. Conservation tillage practice is thus a viable option for corn production. Benefits obtained in adopting conservation tillage will be further realized in terms of economic returns, where highest net benefit is obtained due to lower production costs. In addition, when the soil surface is left undisturbed, soil moisture is conserved at a time when dry periods are a problem.
546			_aEnglish
591			_a0501|AGRIS 0501|AL-Maize Program
593			_aJuan Carlos Mendieta
595			_aCPC
650	1	7	_aCrop yield _gAGROVOC _2 _91066
650	1	7	_aMaize _gAGROVOC _2 _91173
650	1	0	_aSeed production _91253
650	1	0	_aSoil cultivation
650	1	0	_aWater resources
650	1	7	_aWeed control _gAGROVOC _2 _91308
650	1	0	_aZero tillage
653	0		_aCIMMYT
700	1		_aCambaya, R.C., _ecoaut.
700	1		_aEsguerra, M.Q., _ecoaut.
700	1		_aLabios, J.D., _ecoaut.
700	1		_aManalo, J.O., _ecoaut.
700	1		_aSrinivasan, G.|Zaidi, P.H.|Prasanna, B.M.|Gonzalez, F.|Lesnick, K. _eeds.
700	1		_aStividad, J.S., _ecoaut.
700	1		_aTamisin Jr, L.L., _ecoaut.
942			_cPRO
999			_c7466 _d7466