We collected biomass and made it into small particals. Then we spread it thick layers on top of the soil in the planting lines and in the gutters we dug on contourline. The organic material has many functions:
Protects the soil from the hars sun and wind in summer
Protects the microbacterial and fungal life inside of the soil
Holds water as a sponge, preventing evaporation
As being decomposed by the fungi, it feed the soil with nutrients