N. Ng’ang’a J, P. Msumali G. Effects of carbamate and pyrethroid insecticides on cowpea bradyrhizobial population assessed in sand culture and on nitrogen fixation in soil. UJAS [Internet]. 2005 Nov. 15 [cited 2024 Nov. 21];11(1):9-13. Available from: http://journal.naro.go.ug/index.php/ujas/article/view/315