Manures are fully decomposed organic matter. They supply plant nutrients in forms that can be easily taken up; improve structure of the top soil through supply of organic matter which improves root penetration, permeability, water retention capacity, aeration and resistance to erosion; reduces leaching of soil nutrients and improve soil microbial activity
Manyowa ndi zinthu zomwe zaola zochokera ku zamoyo. Zimapeleka michere ku mbeu munjira yomwe michere imayamwidwa mosavuta; zimawonjezera mphamvu ya dothi lapamwamba kudzera kupeleka chonde chomwe chimathandiza kuzama kwa mitsitsi, kumasuka kwa dothi; kuthekera kosunga madzi, kayendedwe ka mpweya kunthaka komanso kupilira ku kukokoloka kwa dothi; amachepetsa kutayika kwa michere yamunthaka ndi kupititsa patsogolo ntchito za tizilombo tamunthaka