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001			G74500
003			MX-TxCIM
005			20211006084815.0
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020			_a92-9146-065-6
040			_aMX-TxCIM
072		0	_aF04
072		0	_aP35
082	0	4	_a633.15 _bEAS No. 6
100	1		_aSaka, A.R. _uMaize Production Technology for the Future: Challenges and Opportunities. Proceedings of the Eastern and Southern Africa Regional Maize Conference, 6; Addis Ababa (Ethiopia); 21-25 Sep 1998
110	2		_aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
245	0	0	_aIntegrating pigeonpeas into smallholder farming systems to improve soil fertility and crop yields in Malawi
260			_aAddis Ababa (Ethiopia) _bCIMMYT|EARO : _c1999
300			_ap. 218-222
340			_aPrinted
520			_aA field experiment was conducted at forty-four smallholder farmers' fields in Malawi during the 1995/96 and 1996/97 crop growing seasons with the main objective of promoting country-wide integration of pigeonpeas into smallholder farming systems. Specifically, the study aimed at: (i) promoting crop diversification, (ii) improving soil fertility and crop yields, and (iii) evaluating other agroforestry technologies besides alley cropping. There were five treatments (or technologies): T1, strip cropping maize with pigeonpeas; T2, improved fallows using pigeonpeas; T3, intercropping maize witb pigeonpeas; T4, sole maize with an application of 30 kg N ha-1 and 15 kg P2O5 ha-1; and T5, sole maize without fertilizer application (control). These were laid out in a Randomized Complete Block Design (RCBD) in two or three replications. Pigeonpeas were well established at all the trial sites indicating that these can be grown at many sites in Malawi. An application of N and P significantly (P=O.O5) increased maize grain yields at all the trial sites, indicating that low soil fertility is an important factor constraining maize grain yields in Malawi. The performance of the technologies across sites was as follows: T4>T2>T1>T5>T3; indicating that fertilised monocrop maize (T4) had the greatest potential to increase crop yields relative to the control (T5), followed by the one-year improved fallow (T2), and strip cropping (T1). The performance of the technologies varied from farmer to farmer, and from site to site. These variations were attributed to: (i) low inherent soil fertility, (ii) high and/or low rainfall that was poorly distributed, and (iii) farmer differences in carrying out crop husbandry practices. Our findings suggest that future research should focus on testing the improved fallow technology in several agro-ecological zones, soil types and climatic conditions, and testing other low-input soll- fertility-improving technologies where organic manures are augmented with inorganic fertilizers.
546			_aEnglish
591			_a0103|AL-Maize Program|AGRIS 0102|AJ
595			_aCPC
650	1	7	_aCrop management _gAGROVOC _2 _91061
650	1	7	_aMaize _gAGROVOC _2 _91173
650	1	0	_aMalawi
650	1	0	_aNitrogen fixation
650	1	0	_aPigeon peas
650	1	7	_aSmall farms _gAGROVOC _2 _91260
653	0		_aCIMMYT
650	1	0	_91248 _aRotational - _gTérmino tomado de AGROVOC _vTérmino tomado de AGROVOC
650	1	0	_91314 _aZea mays _gAGROVOC
650	1	0	_91952 _aSoil fertility _gAGROVOC
650	1	0	_91109 _aFarming systems _gAGROVOC
700	1		_aAllison, A. G., _ecoaut.
700	1		_aBunderson, W.T., _ecoaut. _91691
700	1		_aCIMMYT
700	1		_aKamangira, J. B., _ecoaut.
700	1		_aKumwenda, J.D.T., _ecoaut.
942			_cPRO
999			_c10028 _d10028