Question

List the 6 macronutrients (including seconary macronutrients) found in fertilizers and provide a sample compound that supplies each of these?

Answer 1

Essential elements used by plants in relatively large amounts for plant growth are called macronutrients. The major macronutrients are nitrogen (N), phosphorous (P), and potassium (K). Calcium (Ca), magnesium (Mg), and sulfur (S) are also macronutrients.

Nitrogen sources are Ammonia(NH3), Ammonium Nitrate

Phosphorus content in fertilizers is generally supplied as phospate in compounds such as diammonium Phosphate, Calcium dihydrogen phoshpate,

potassium sources are potassium sulphate, potassium chloride

Calcium is secondary macro nutrient in Calcium cynamide, calcium nitrate

Sulphur is secondary macro nutrient in sulphates ammonium sulphate, potassium sulphate

Magnesium source is magnesium nitrate