What is the definition of organic fertilizer?![]() ![]() Manure is a kind of fertilizer made of natural organic matter decomposed or fermented by microorganisms.It is also called farmyard fertilizer in China.Its characteristics are:wide source of raw materials and large quantity;Complete nutrients and low content;The fertilizer effect is late and long,and can only be absorbed by plants after being decomposed and transformed by microorganisms;The effect of soil modification is good.The commonly used natural fertilizers include green manure,human manure,manure,compost,compost,biogas fertilizer and waste fertilizer.
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