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Question

_____________ is a natural method of replenishing soil nutrients.
______________ helps in accomplishing this process.

A
Crop rotation; Manure
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B
Land fallowing; Fertiliser
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C
Land fallowing; Manure
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D
Crop rotation, Azotobacter
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Solution

The correct option is D Crop rotation, Azotobacter
  • Crop rotation refers to growing leguminous crops in between the major crops that can replenish the nitrogen in soil naturally.
  • It involves the help of nitrogen-fixing microbes like Rhizobium and Azotobacter. It converts the atmospheric nitrogen to ammonia, therby, replenishing nitrogen in soil.

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