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Mostrando ítems 1-10 de 14
Book
Impacts of maize breeding research in Latin America, 1966-97
(CIMMYT, 1999)
This report documents the number and types of maize varieties and hybrids released by public breeding programs between 1966 and 1997, describes the varieties and hybrids marketed by public seed agencies and private companies ...
Book
The adoption of conservation tillage in a hillside maize production system in Motozintla, Chiapas
(CIMMYT, 1997)
Data from a 1994 survey of 82 farmers who grow maize on steep hillsides in Motozintla, Chiapas, provided information on agricultural practices, including the adoption of conservation tillage practices; the profitability ...
Book
Farmer assessment of velvetbean as a green manure in Veracruz, Mexico: experimentation and expected profits
(CIMMYT, 1996)
This study explores factors associated with farmers' decision to experiment with velvetbean (Mucuna spp.), a green manure, as a maize intercrop in three villages of Veracruz, Mexico. To asses whether velvetbean might be ...
Book
Genetic diversity and maize seed management in a traditional Mexican community: implications for in situ conservation of maize
(CIMMYT, 1996)
Results from a study of maize varieties and seed sources in a traditional community in Mexico raise questions about the relevance of models for in situ conservation of crop genetic resources that are based on geographical ...
Book
A regional analysis of maize biological diversity in Southeastern Guanajuato, Mexico
(CIMMYT, 1998)
Four environments with contrasting potential for agricultural productivity and infrastructure development were identified in Guanajuato State, Mexico, to test hypotheses about the relationship of maize biological diversity ...
Book
Conservation tillage or residue conservation? An evaluation of residue management in Mexico
(CIMMYT, 1997)
The key to conservation tillage is the use of crop residues as mulch. However, there is some confusion over the term conservation tillage, among other things, because too much emphasis has been placed on tillage. Since ...
Book
La producción de maíz de temporal en México: tendencias, restricciones y retos tecnológicos e institucionales para los investigadores
(CIMMYT, 1992)
Este documento examina las tendencias de la producción de maíz de temporal en México en los últimos decenios y la experiencia del INIFAP / OMMYT/ ORAD en la investigación en fincas (IEF) en las tierras bajas tropicales de ...
Book
El uso y conservación de los recursos naturales en La Fraylesca, Chiapas: un diagnóstico
(CIMMYT, 1992)
Se llevó a cabo un sondeo en la región de La Fraylesca en el estado de Chiapas en abril de 1992. El objeto de éste fue identificar o confirmar las principales causas de la degradación de los recursos naturales, determinar ...
Book
El potencial de la labranza de conservación en la mixteca Oaxaqueña
(CIMMYT, 1993)
Se llevó a cabo en marzo de 1992 un sondeo en la Mixteca Oaxaqueña, región donde existen problemas fuertes de erosión y sequía que reducen severamente los rendimientos de maíz y de trigo. Dado que las tecnologías de la ...
Book
Labranza de conservación o conservación de residuos? Una evaluación del manejo de los residuos en México
(CIMMYT, 1997)
La clave de la labranza de conservacion es el uso de los residuos como mantillo. Sin embargo, existe mucha confusion en relacion al termino labranza de conservacion, entre otras cosas por poner demasiado enfasis en la ...