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?
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
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