Which of the following are the three primary nutrients needed for plant growth?
A
calcium, sulphur and magnesium
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B
nitrogen, phosphorus and potassium
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C
zinc, boron and copper
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D
calcium, zinc, copper
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Solution
The correct option is B nitrogen, phosphorus and potassium The three primary nutrients needed for plant growth are nitrogen (N), phosphorous (P) and potassium (K). They are commonly given together and known as NPK.