Agriculture · Soil Fertility
Green manuring improves soil fertility mainly by:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Eradicating insect pests and weeds from the soil
- 2Reducing soil aeration to conserve nitrogen gas
- 3Supplying pre-synthesized chemical nutrients directly to crop roots
- 4Adding organic matter and increasing soil nitrogen through biological nitrogen fixation✓
Correct answer
Adding organic matter and increasing soil nitrogen through biological nitrogen fixation
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