JAMB - Biology (1982 - No. 4)

Some of the major elements required by plants are
Potassium, nitrogen, phosphorus, sodium, calcium
Nitrogen, phosphorus, molybdenum, sodium, calcium
Potassium, phosphorus, molybdenum, sodium, calcium
Potassium, nitrogen, iron , sodium, calcium
Potassium, nitrogen, phosphorus, silicon, cadmium

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