Most of the arable lands across the country show low levels of organic carbon with deficiencies ranging from 11% to 76%.
FYM is a good source of organic carbon.
Soil organic carbon is the key factor of soil fertility by releasing the nutrients for plant growth, promotes the structure of the physical and biological health of the soil.
Farmyard manure is organic matter used as fertilizer in agriculture. Manures improve the fertility of adding organic matter and lots of nutrients, On average well-composted farmyard manure contains 0.5% N, 0.2 % P2O5and 0.5 % K2O.
They supply plant nutrients including micronutrients and increase their availability.
They improve soil physical properties like Water holding capacity, Porosity, etc.
Heat and CO2 control harmful fungus & insects in the soil. This CO2 & Heat are released due to the decomposition of FYM.
The nutrients are lost due to leaching by rainwater so 8 -10 Tones /acre well-rotted farmyard manure (FYM) should be spread uniformly on the unploughed soil.