Question

Tak perlu
2. Chemical compounds added to the soil for
increasing soil fertility.​

Answer 1

The major nutrients, or macronutrients, supplied by the soil are nitrogen, phosphorus, potassium, sulphur, magnesium and calcium. The minor nutrients, also referred to as micronutrients or trace elements, supplied by the soil are molybdenum, copper, zinc, manganese, iron, nickel, boron and chlorine