Like other legumes, groundnut is capable of fixing atmospheric nitrogen. When grown in rotation with other crops such as maize or tobacco, it improves soil fertility
Monga mbewu zina za nyemba, mtedza  umayika nitrigen wamumpweya munthaka. Ukabzalidwa mwakasinthasintha ndi mbewu zina monga chimanga kapena fodya, umawonjezera chonde munthaka