In many situations, it is not possible to take up green manure crop and incorporate it in situ. In such situations, loppings from many trees can be used to incorporate in the soil. There are many trees and shrubs in the village that have high relevance to soil fertility. Trees and shrubs like Tephrosia, Subabul, Cassia auriculata, pongamia, Butea monosperma (Flame of the forest), custard apple, calatropis (milk weed), Parthenium (congress weed), neem, jatropha, Ipomea etc.
Some trees can be grown on the field bunds itself to readily access the loppings. The trees should have the characteristics like drought resistance, good coppicing ability, pest resistance, generate large quantities of biomass etc. Eg., Cassia siamea, Glyricidia.