Fertilizers are chemical compounds rich in specific nutrients, produced in factories. Examples include urea, ammonium sulfate, superphosphate, potash, and NPK (Nitrogen, Phosphorus, Potassium).
NCERT Class 8 Science
Chapter 1 Crop Production and Management
Fertilizers and manure differ in their composition and origin. Fertilizers are synthetic or chemical substances containing specific nutrients like nitrogen, phosphorus, and potassium, designed to enhance plant growth. They provide precise nutrient content but may lack organic matter. Manure, on the other hand, is organic material derived from animal waste or decomposed plants, rich in nutrients and organic matter. It improves soil structure and fertility. Examples of fertilizers include urea, ammonium phosphate, and potassium chloride. Examples of manure include composted animal dung and organic matter. While both serve to enhance soil fertility, fertilizers are synthetic, and manure is organic in nature.