If a crop requires 1 5 kg phosphorus per hectar... - WAEC Agriculture 1989 Question
If a crop requires 1.5 kg phosphorus per hectare, how many kg of manure will be required per hectare if 1 kg manure contains 0.49 kg of phosphorus?
A
2.47
B
2.97
C
7.35
D
12.39
correct option: e
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