Green Manures

It is the practice for enriching the soil by ploughing or burying into soil undecomposed green plant tissues for the purpose of improving structure and fertility of the soil. Generally sunhemp (Crotalaria juncea) dhaincha (Sesbania aculeata), guar (Cyamopsis tetragonoloba), glyricidia (Glyricidia maculata), Karanj (Pongamia pinnata) etc. are used as green manures. Legume crops, leaves of bushes and trees is buried in the soil and allowed to decompose in the field. Macro and micro organisms decompose the organic matter and develop a well balanced soil biota which fixed minerals in soil solution. It increases water holding capacity and organic colloids in soil.