Now showing items 11-20 of 253
In-Service trainees' handbook 1971
Molecular characterization of soil bacterial communities in contrasting zero tillage systems
It is well known that agricultural practices change the physical and chemical characteristics of soil. As a result, microbial populations can also be affected. The aim of this study was to analyze the effect on soil bacterial ...
Análisis del sistema mexicano de investigación 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 ...
Barley yellow dwarf: a proceedings of the workshop
(CIMMYT; UNDP, 1984)
This publication contains the proceedings of a workshop on barley yellow dwarf (BYD) held in Mexico on 6-8 December, 1983. It contains 23 contributed papers (including comments made to them), and situation reports on the ...
Four years of on-farm research results at Chalco, Mexico
The effect of different tillage and residue management practices on soil characteristics, inorganic N dynamics and emissions of N2O, CO2 and CH4 in the central highlands of Mexico: a laboratory study
Conservation agriculture in its version of permanent raised bed planting with crop residue retention increases yields and improves soil characteristics, e.g. aggregate distribution, organic matter content, so it remained ...
Earthworm activity and soil structural changes under conservation agriculture in central Mexico
Crop residue mulching combined with zero tillage and crop rotation, known as conservation agriculture (CA), is being promoted as an alternative system to revert soil degradation in maize-based farming in the central highlands ...
Gene flow among maize landraces, improved maize varieties, and teosinte: Implications for transgenic maize
Proceedings of a forum organized by the Mexican National Institute of Forestry, Agriculture and Livestock Research (INIFAP), the Mexican National Agricultural Biosafety Committee (CNBA), and the International Maize and ...