000			014010000a22002650004500
003			CR-TuBCO
005			20211014062609.0
008			150508b xxu||||| |||| 00| 0 eng d
040			_aCR-TuBCO _cCR-TuBCO _bEs
082	0	4	_a31235
100			_aSomarriba, Eduardo _9120490
245	1	0	_aRevisiting the past: an essay on agroforestry definition _b:
260			_c1992
520			_aConcepts used by various authors are analyzed in order to define agroforestry and discuss, in detail, some ambiguous terms often encountered (biological and economic interactions, time sequences, etc.). Only those concepts which differentiate agroforestry from other non-agroforestry forms of land use are retained as part of the definition, which is: agroforestry is a form of multiple cropping under which three fundamental conditions are met: 1) there exist of least two plant species that interact biologically; 2) at least one of the plant species is a woody perennial and 3) at least one of the plant species is managed for forage, annual or perennial crop production.
650	1	4	_9134976 _aAGROFORESTERIA
650	1	4	_9136506 _aARBOLES Y ANIMALES
650	1	4	_9136473 _aARBOLES CON PASTO
650	1	4	_9164869 _aSISTEMAS DE PRODUCCION
773	0		_tAgroforestry Systems (Países Bajos) _d1992 _gv.19 (3) p. 233-240
903			_aE
904			_aBCO
905			_aC
908			_aJ
942			_cANA _2ddc
999			_c52185 _d52185