Ever since agriculture has evolved, animal waste has been treated as a fertilizing element for the soil. The first step towards civilization was plantation and as time progressed, human beings developed new techniques of plantations and looked forward to improvise on the previous ones. It was a simple observation that the primitive man made, that led him to treat animal waste as manure.

The grazing animals in the agricultural lands left their waste there itself and this led to better and enhanced growth of grass and crops. Man took no time to realize that this waste matter acted as a fertilizer for the crops and thus stored the waste materials to be decomposed. And today we are well aware of the results.

Organic fertilizers have proved to be the safest and long lasting soil improvisers. They do not exert harmful and polluting effects on the soil and plants. these fertilizers consist of natural and bio-degradable components and elements which can easily be worked upon by little microorganisms and thus reach the crops and plants in a safe manner.

Organic manure is a similar compound highly rich in nitrogen,which prominently consists of animal waste and rotten grass. The natural components are harmless and take long time to be decomposed. However as the time has progressed, manure is also manufactured in the plants under the enhanced effects of temperature and other required conditions for the decomposition to occur.

Manures are a great contribution to the fertility of the soil as they add organic matter and nutrients in the soil. and thus accomplish the demands of the much needed nutrition. ?Manure has been classified in main two types ? Green Manure