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Book
Intensificación de sistemas de agricultura tropical mediante leguminosas de cobertura: un marco conceptual
(CIMMYT, 1996)
El uso en la agricultura tropical de leguminosas como cultivos de cobertura para compensar los efectos negativos del cultivo continuo se encuentra ampliamente reconocido y documentado en la literatura. En un sentido amplio, ...
Book
Adopcion y uso de semilla mejorada de maiz entre pequeños agricultores de Guatemala
(CIMMYT; PRM, 1996)
La mayor parte de los productores de maíz de Guatemala son pequeños agricultores de subsistencia que generalmente no tienen acceso a insumos agrícolas como semilla mejorada y a otros insumos agrícolas. Por ejemplo, en 1987 ...
Book
Understanding global trends in the use of wheat diversity and international flows of wheat genetic resources
(CIMMYT, 1996)
This paper discusses the centers of origin and diversity for bread wheat; sketches historical patterns in the sources and use of wheat genetic resources in modern plant breeding; identifies and compares indicators of genetic ...
Book
Wheat and rice in the Nepal Tarai: farm resources and production practices in Rupandehi District
(CIMMYT; NARC, 1996)
A survey was conducted in Rupandehi District of the Nepal Tarai as part of a longer term research program to monitor changes in farmers' resources and production practices in the area's rice-wheat cropping systems. The ...
Book
Indicators of wheat genetic diversity and germplasm use in the people's republic of China
(CIMMYT, 1996)
A preliminary study of wheat genetic diversity in the People's Republic of China is presented. Available evidence and basic data related to the ancestry of leading wheat cultivars and the area distribution of dominant ...
Book
Fertilizer use and maize production in Sub-Saharan Africa
(CIMMYT, 1996)
In sub-Saharan Africa, greater use of mineral fertilizers is crucial to increasing food production and slowing the rate of environmental degradation. Regional growth rates in fertilizer consumption have never been particularly ...
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
Low use of fertilizers and low productivity in Sub-Saharan Africa
(CIMMYT, 1996)
Factors related to the low use of fertilizers and the resulting low agricultural productivity in sub-Saharan Africa are reviewed. The importance of inorganic fertilizers and agricultural research to improving soil fertility ...
Book
Intensifying maize-based cropping systems in the Sierra de Santa Marta, Veracruz
(CIMMYT, 1996)
This paper focuses on intensifying maize-based cropping systems in the Sierra de Santa Marta Region of Veracruz, Mexico. Following a description of the study area, the paper examines the historical forces that have shaped ...
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 ...