Environment & Ecology · Environment
Which of the following techniques is most effective for maintaining soil fertility in organic farming without the use of synthetic nitrogenous fertilizers?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Over-irrigation to promote mineral leaching
- 2Incorporating leguminous crops into the crop rotation cycle✓
- 3Frequent deep-tillage of the topsoil
- 4Regular application of chemical urea
Correct answer
Incorporating leguminous crops into the crop rotation cycle
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