Ejemplares similares: A field guide for onfarm experimentation
- On-farm research in theory and practice: proceedings of a workshop on design and analysis of onfarm trials 27 February to 3 March 1989
- Farmers maize yields in S.W. Nigeria and the effect of variety and fertilizer: an analysis of variability in onfarm trials
- Onfarm research in theory and practice
- Traditional practices as a basis for the improvement of onfarm stored product preservation in tropical Africa
- A field guide for onfarm research with special reference to improvement of cropping systems and techniques in West and Central Africa
- On-farm research in theory and practice: proceedings of a workshop on design and analysis of onfarm trials 27 February to 3 March 1989
Autor: Weber, G.
- Production de semences de mais hybride: Guide de recherche de lIita, No. 59
- Legume rotation in the moist tropical savanna: managing soil nitrogen dynamics and cereal yields in farmers' fields
- Weeds in intensive cerealbased cropping systems of the Northern Guinea Savanna: RCMP Research monograph, No. 20
- Macrocharacterization of agricultural systems in West Africa: an overview
- System dynamics and the defintion of research domains for the northern Guinea Savanna of West Africa
- Striga hermonthica in cropping systems of the Northern Guinea Savanna
Autor: Walker, P.
- Maize cowpea intercropping as affected by nitrogen fertilization
- Combining ability among source populations for tropical midaltitude maize inbreds
- Response of selected crop associations to groundwater table depth in an inland valley
- The maize and cassava production system in southwest Nigeria and the effect of improved technology; onfarm trials in Alabata and Ayepe, 1985-1989
- Representativeness of farmers and sites in onfarm trials
- Onfarm research in theory and practice