Q
Sustainable technologies to improve soil fertility and physical condition:
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A
A. Balance use of npk fertilizers according to the need of crops.
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B
B. Following proper crop rotation (shallow rooted and deep root crops) in the cropping session.
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C
C. Regular use of fym, composts, acidic mulches, green manures and organic fertilizers to increase om content of soil.
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D
D. All of the above
Correct Answer:
D. D. All of the above
