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Q. |
The ideal average NPK ratio aggregated for the country as a whole is : |
A. | 4 : 2 : 1 |
B. | 2 : 4 : 1 |
C. | 4 : 1 : 2 |
D. | 4 : 3 : 2 |
Answer» A. 4 : 2 : 1 |
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