Mineral nutrient solution which contributes a total of nine mineral nutrients as K, N, P, Ca, S, Na, Cl, Fe, Mg is
Hoagland’s solution
Engelmann’s solution
Sach’s solution
De Sassure’s solution
Mineral Nutrient Solutions:
1. Sach’s Solution: It contributes a total of nine mineral nutrients as K, N, P, Ca, S, Na, Cl, Fe, Mg.
2. Hoagland Solution: It contains all of the known mineral nutrients needed for rapid plant growth.
Hence, the correct answer is option c.