Improvement in grain and fodder yields of cowpea genotypes representing four decades of breeding in the Nigerian Sudan savannas
This paper presents the findings of a field study conducted to determine the rate of genetic improvement in the grain and fodder yields of cowpea genotypes developed in the Nigerian Sudan savannas from 1970 to 2004.
Potential of triple and double cropping with and without irrigation in the Sudan and Northern Guinea Savanna Zones of West Africa
The rapid increase in population and consequent pressure for food is driving agriculture towards greater intensification in West Africa. Various options including double and triple cropping, with and without irrigation, have to be employed for intensification to succeed. Double and triple cropping options with irrigation in Sudan and Sahel savannas and without irrigation in the northern Guinea savanna zones of West Africa were explored as possible options for intensification in these areas.
