Organic fertilizers are by-products of biological waste materials such as animal manure, food waste, sewage sludge, crop residues and green manure. They are rich in nutrients like nitrogen, phosphorus, and potassium that…
Organic fertilizers are by-products of biological waste materials such as animal manure, food waste, sewage sludge, crop residues and green manure. They are rich in nutrients like nitrogen, phosphorus, and potassium that…