Publication of the Month
Reproducibility and external validity of on-farm experimental research in Africa
Agronomists have increasingly conducted experiments on-farm, in an attempt to increase the wider applicability (external validity) of their experimental findings and their relevance for agricultural development.
This review assesses the way in which on-farm experimental studies address the scope or generalisability of their findings when based on a limited number of farms. A central question is how on-farm studies define the environment or research population in which the on-farm trial findings are valid, or are
Surviving on Half a Hectare of Land: An Introduction to the Issues Surrounding Smallholder Farming in Malawi
Not everyone dealing with agricultural issues in Malawi appreciates the fact that smallholders in this country face challenges which are unique in Africa. No other country in Sub-Saharan Africa has population densities of up to 250 ...Read more