Inoculation with highly effective and persistent rhizobium strains is a possible approach for enhancing the productivity of groundnut in Ghana. Therefore, a 2 × 9 factorial experiment which resulted in 18 treatments in total was set up in three farmers’ fields across northern Ghana to evaluate the response of two groundnut varieties to indigenous rhizobium isolates and their persistence after a year of introduction. The persistence study was carried out under greenhouse conditions.

Soybean (Glycine max L) constitutes an important grain legume crop in semi-arid areas of sub Saharan Africa. The crop yields are usually low and falling relatively due to low P levels of the soil and the inability of the crop to fix nitrogen. Genotypes that make use of P applied to the soil and fix nitrogen could represent a key step in improving the productivity of soybean in the savannah zone.

Drought and soil fertility are some of the major factors limiting crop yield especially in crop legumes. Six on-station trials were conducted to determine nutrients limiting the grain yield and yield component in common beans (Phaseolus vulgaris L.) under drought and non-drought conditions at Kandiyani and Chitedze Research Station. Two trials were conducted at Chitedze Research Station under rainfed conditions: one using a climbing bean variety (MAC 53) and another using bush bean variety (SUG 131).