Scaling up ZBNF could significantly alter the landscape of chemical inputs in agriculture, particularly fertilisers Close on the heels of the Andhra Pradesh Government’s announcement of a scale-up of Zero Budget Natural Farming (ZBNF) with a Rs 711-crore loan from KFW, Germany, comes a study that claims that AP could save big time in fertiliser subsidies. The savings could be to the tune of nearly Rs 2,100 cr in fertiliser subsidies annually if it scaled up ZBNF to all six million farm families in the state by 2024, according to an independent study released by the Council on Energy, Environment and Water (CEEW).