To improve the structure of the soil and its water holding capacity; to help suppress weeds; to increase beneficial activities of termites, earthworms and other organisms and to increase the effectiveness of fertilizers by reducing nutrient losses from volatilization and leaching
Powonjezera kukonza nthaka ndi kuthekera kwake kosunga madzi; kuthandiza kuchepetsa mphamvu ya tchire; kuwonjezera ubwino wa zochitika za chiswe, nyongolosi ndi zinyama zina zing'onozing'ono ndi kuwonjezera kugwira ntchito kwa fertlizer pochepetsa kutayika kwa michere chifukwa chakusakhazikika komanso kusuluka kwa nthaka