Impact of organic manures on Soil

S.No	Organic matter	Impact on Soil
1	Farm yard manure (FYM)	A.     Improved Soil physical condition B.      Increased Soil organic carbon C.      Moisture holding capacity D.     Improved soil air movement  E.      Increased availability of soil nitrogen F.      Increased availability of Micro nutrients
2	Crop rotation with legumes	A.     Nitrogen fixation B.      Solubilisation of Phosphorus C.      Increase in soil microbial activity D.     Organic matter restoration E.      Increased mychorizal colonization
3	Green leaf manure	A.     Improvement in soil porosity B.      Improved water holding capacity C.      Improvement in aggregate stability D.     Increase in N2 fixers and P solubilisers
4	Liquid manures (drava jeevamrutham, Pancha gavya, amrutha pani etc)	Increased N fixers, P solubilisers  and actinomycetes
5	Azolla	A.     Increased Fixing Nitrogen B.      Increased soil organic carbon
6	Other composts (Nadep etc)	A.       Increase soil organic content B.      Improve soil physical condition
7	Vermicompost	A.     Increased soil microbial population B.      Supply N,P, K and other micro nutrients
8	Concentrated manures ( Neem cake, Pongamia cake etc)	A.     Supply N,P,K B.      Improvement in Physical properties