Mostrando ítems 1-10 de 67
Insect Resistant Maize for Africa (IRMA) Project Annual Report 2002
Increasing wheat yields sustainability through agronomic means
This paper examines common factors that constrain wheat yields: insufficient nutrients (using nitrogen as an example); problems of late planting and poor crop establishment; suboptimal water management; lodging; and weeds. ...
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 ...
Transferencia de labranza de conservación para maíz de temporal en Jalisco
(CIMMYT *INIFAP *CIRAD *SDR, 1997)
The global wheat improvement system : prospects for enhancing efficiency in the presence of spillovers
Through the global analysis and country-level case studies, this report analyzes the efficiency of investments in wheat improvement research at a disaggregated level and explores a range of options for restructuring research ...
Farmer plant breeding from a biological perspective: Implications for collaborative plant breeding
Plant breeding by research has become increasingly isolated from the plant breeding of farmers. Collaborative plant breeding (CPB) offers the possibility of bringing these two plant breeding traditions together to increase ...
Ensuring the use of sustainable crop management strategies by small wheat farmers in the 21st century
Virtually all current strategies to implement modern, sustainable crop management production practices involve conservation/zero tillage prior to seeding, some form of crop residue retention and management, fertilizer ...
Soil fertility management research for the maize cropping systems of smallholders in Southern Africa: A review
This paper examines the implications of declining soil fertility for the maize-based cropping systems in southern and eastern Africa. A review of the importance of maize in the region is followed by a description of the ...
Participatory research methods for technology evaluation: A manual for scientists working with farmers
This manual presents methods that enable agricultural scientist and farmers to evaluate technologies/practices jointly. The methods are specifically designed for participatory research on germplasm and soil fertility ...
CIMMYT 1998-99 World wheat facts and trends. Global wheat research in a changing World: Challenges and Achievements
This report has four parts. The first part focuses on the changing environment in which the international wheat research system functions in developing countries. The authors describe recent trends in developing country ...