Question
Biofertilizers and manures.
Answer :
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Biofertilizers and manures play a crucial role in sustainable agriculture by improving soil fertility and enhancing crop productivity without causing environmental harm. Biofertilizers are living microorganisms such as bacteria, fungi, and algae that enrich the nutrient quality of the soil. They help in fixing atmospheric nitrogen, solubilizing phosphorus, and stimulating plant growth through the synthesis of growth-promoting substances. Common examples include Rhizobium for leguminous crops, Azotobacter, Azospirillum, Blue-Green Algae, and mycorrhiza. These organisms increase nutrient availability, improve soil
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