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| Q. |
A recommended safe limit of land slope for efficient irrigation in heavy soil is |
| A. | 0.05 to 0.25 % |
| B. | 0.20 to 0.40% |
| C. | 0.25 to 0.65% |
| D. | All are correct |
| Answer» A. 0.05 to 0.25 % | |
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