Farmers can get paid to make their own organic fertilisers from urban wastes by composting. Is it easy and without hassle? Certainly not but it does produce better crops, with lower cultivation costs and higher yields. There is a part way stage and that is to conserve as much organic matter as possible in the soil, including leaving crop residues and minimising cultivations. In most crops, approaching half the total dry matter of the plant will be below the surface of the soil. Cultivation oxidises organic matter. Conventional ploughing and power harrowing plus seeding can destroy up to 35 % of soil organic matter per annum. Direct drilling as little as 10 %. .
For more detail of preserving organic matter and profits, put “Survival by Bill Butterworth Amazon” into your search engine to download details.
Land Research Ltd September 2016