Question

name the fertilisers used by the farmers​

Answer 1

Answer:

the use of manure and composts as fertilizers is probably almost as old as agriculture.

Modern chemical fertilizers include one or more of the three elements that are most important in plant nutrition: nitrogen, phosphorus, and potassium.

Of secondary importance are the elements sulfur, magnesium, and calcium.

Explanation:

Answer 2

Answer:

Most fertilizers that are commonly used in agriculture contain the three basic plant nutrients: nitrogen, phosphorus, and potassium. Some fertilizers also contain certain "micronutrients," such as zinc and other metals, that are necessary for plant growth.