Why mineral organic fertilizers?
Plants are photo-autotrophs. Plants need light as energy source for photosynthesis. Other materials for photosynthesis are: Minerals (including N, P, K, Ca, Mg & trace elements), CO2 and water. Nutrients to plants are minerals. That means plants can not use organic fertilizers directly. Organic matters have to be decomposed to simpler organic substances and then to minerals. This process is called Mineralization. Process of mineralization that allow organic substrates under controlled successive microbial decomposition become stabilized organic matter in the presence of oxygen is Composting.
