EVERYDAY SCIENCE

Detailed explanation-1: -Nitrogen, phosphorus and potassium, or NPK, are the “Big 3” primary nutrients in commercial fertilizers. Each of these fundamental nutrients plays a key role in plant nutrition. Nitrogen is considered to be the most important nutrient, and plants absorb more nitrogen than any other element.

Detailed explanation-2: -These three numbers form what is called the fertilizer’s N-P-K ratio-the proportion of three plant nutrients in order: nitrogen (N), phosphorus (P) and potassium (K).

Detailed explanation-3: -NPK fertilizers are fertilizers that contain the elements nitrogen (N), phosphorus (P), and potassium (K). Why these elements? Well, each element has been found to improve the health and appearance of plants.

Detailed explanation-4: -The aim of Nutrient Based Subsidy Policy is to increase the consumption of P & K fertilizers so that an optimum balance of N:P:K = 4:2:1 can be achieved. There are 6 macro nutrients that are needed for well balanced growth of crops.

Detailed explanation-5: -Fertilizers that are high in phosphorus include mushroom compost, hair, rock phosphate, bone meal, burned cucumber skins, bat guano, fish meal, cottonseed meal, worm castings, blood meal, manure, and compost.