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040			_aCR-TuBCO _cCR-TuBCO _bspa
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090			_aCATIE _b631.58 S714l
100	1		_9120614 _aSoria V, J.
110			_aCATIE - Centro Agronómico Tropical de Investigación y Enseñanza _cTurrialba, Costa Rica _93977
245	1	0	_aLos sistemas de agricultura en el Istmo Centroamericano
260			_c1976 _aTurrialba (Costa Rica) _bCentro Agronómico Tropical de Investigación y Enseñanza (CATIE)
270			_aSan José, C.R.
300			_a12 p.
504			_aIncluye referencias bibliográficas en p. 66-68
520			_aThe main agricultural systems in the Central American area for both local food consumption and export crops are monocultures, multiple cultures, associated cultures and their combinations. The efficiency of these systems different strata of producers, and on the ecological conditions of the tropics. The need for more ecologically oriented research, with special emphasis on the small farmer and his economic and social status, is clearly evident.
650	1	4	_9164829 _aSISTEMAS DE CULTIVO
650	1	4	_aAMERICA CENTRAL _9135626
691			_9142769 _aCROPPING SYSTEMS
691			_922991 _aCENTRAL AMERICA
773	0		_tRevista de Biología Tropical (Costa Rica) _d1976 _g(Supl. 1) p. 57-68
856	4	0	_uhttps://repositorio.catie.ac.cr/handle/11554/6519 _qpdf _yspa
901			_aF08
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904			_aacarvajal
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906			_a19950101 _b20110408
907			_a000001971
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908			_aJ
942			_cANA _2z