Question

Five and one-half tons of compost containing 2.1 % N, 1.15 % P2O5, and 0.97% K2O  can supply how many kilograms of N, P2O5  and K2O?

Answer 1

5.1 tons = 5100 kg

m (N) = 5100 x 0.021 = 107.1 kg

m (P₂O₅) = 5100 x 0.0115 = 58.65 kg

m (K₂O) = 5100 x 0.0097 = 49.47 kg