The three elements most needed in common fertilizers are :
(1) Sulphur, Phosphorous, and Sodium
(2) Nitrogen, Potassium, and Phosphorous
(3) Phosphorous, Sodium, and Nitrogen
(4) Calcium, Phosphorous, and Potassium
Answer: (2) Fertilizer (or fertilizer) is any organic or inorganic material of natural or synthetic origin (other than liming materials) that is added to a soil to supply one or more plant nutrients essential to the growth of plants. The three elements most needed in common fertilizers are Nitrogen. Potassium and Phosphorous
