Mostrando ítems 31-40 de 272
Integration of environmental, agronomic, and economic aspects of fertilizer management
Nitrogen fertilization is a substantial source of nitrogen-containing trace gases that have both regional and global consequences, In the intensive wheat systems of Mexico, typical fertilization practices lead to extremely ...
Analisis del sistema mexicano de investigacion agropecuaria
En la decada del 90, el sector agropecuario mexicano genero alrededor del 5% del PHI y el 2.5% de las exportaciones. A pesar de su reducida contribucion al PHI, el sector agropecuario tiene una gran importancia economica ...
Policy reforms and mexican agriculture: Views from the Yaqui Valley
The overall effects of policy reforms enacted during the 1990s in Mexico on financial and economic profitability ofYaqui Valley agriculture are assessed in this study, which describes the reforms, examines how exogenous ...
Sustainable improvement of agricultural production systems in the mixteca region of Mexico
With support from the Conrad N. Hilton and Ford Foundations and in collaboration with three Mexican non-governmental organizations, the CIMMYT Natural Resources Group (NRG) worked with small-scale farmers in the impoverished, ...
Farmer practices and problems in N. Veracruz
Rainfall as a limiting factor for wheat grain yield in permanent raised-beds
The planting system on permanent raised-beds for rainfed wheat (Triticum aestivum L.) production in the central highlands of Mexico is an option that needs to be documented for moderate-yield environments. Long-term plots ...
Transferencia de labranza de conservación para maíz de temporal en Jalisco
(CIMMYT *INIFAP *CIRAD *SDR, 1997)