A. 5, 10, 5% respectively of N2, P2O5 and K2O
B. Only 5 to 10% active fertiliser constituents
C. 5 to 10% filler & carrier of soil conditioners
D. None of these
Correct Answer: 5, 10, 5% respectively of N2, P2O5 and K2O ✔
Last Updated: March 11, 2019