000 01815nam a22004097a 4500
001 G68317
003 MX-TxCIM
008 121211s ||||f| 0 p|p||0|| |
020 _a970-648-011-0
040 _aMX-TxCIM
072 0 _aE20
072 0 _aF08
090 _aLook under series title
100 1 _aNavarro Garza, H.
_uRotaciones y Asociaciones de Cultivos en Sistemas de Maíz en Zonas Templadas; Pátzcuaro, Michoacán (México); 29-30 Abr 1998. Memoria del Taller Nacional
110 2 _aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
245 0 0 _aProductividad comparada en rotaciones y rehabilitación de suelos volcánicos endurecidos
260 _aMéxico, DF (México) :
_bCIMMYT,
_c1998
340 _aPrinted
490 _aCIMMYT NRG Copublicación ;
_vNo. 98-02
520 _aRotations of different combinations of wheat, mixed maize and beans, and vetch, both with and without added organic matter, were grown on hardened volcanic soils (fragipan type) in Hueyotlipan, Tlaxcala, Mexico, for five years. Greater dry matter yields were obtained in rotations where organic matter was introduced than without. Family grain and forage supplies and incomes improved, and use of external inputs was reduced.
546 _aSpanish
591 _a9909|AGRIS 0001
593 _aJose Juan Caballero
595 _aCPC
650 1 0 _aCropping systems
_91068
650 1 0 _91105
_aFaba beans
_gAGROVOC
650 1 0 _aMexico
650 1 0 _aProduction factors
650 1 0 _aProduction policies
_91221
653 0 _aCIMMYT
650 1 0 _91295
_aTriticum
650 1 0 _91248
_aRotational -
_gTérmino tomado de AGROVOC
_vTérmino tomado de AGROVOC
650 1 0 _91314
_aZea mays
_gAGROVOC
700 1 _aAstier, M.|Pérez, E.
_eeds.
700 1 _aPérez O., M.A.,
_ecoaut.
942 _cREP
999 _c9747
_d9747