What are the three primary nutrients needed for plant growth?
A. Calcium, sulphur and magnesium
B. Nitrogen, phosphorus, and potassium
C. Zinc, boron and copper
D. Magnesium, silver and gold
Answer:B
What are the three primary nutrients needed for plant growth?
A. Calcium, sulphur and magnesium B. Nitrogen, phosphorus, and potassium C. Zinc, boron and copper D. Magnesium, silver and gold