The practice in which green plants like sunn hemp, guar etc., are grown and then mulched by ploughing them into soil, results in the formation of ______(i)______ which enriches the soil with ____(ii)____.Select the correct option of (i) and (ii)A (i) - Compost(ii) - Organic matter B (i) - Fertilizer(ii) - Potassium and magnesium C (i) - Bio- fertilizer(ii) - Blue green algae D (i) - Green manure(ii) - Nitrogen and phosphorous
Question
The practice in which green plants like sunn hemp, guar etc., are grown and then mulched by ploughing them into soil, results in the formation of (i) which enriches the soil with (ii).Select the correct option of (i) and (ii)A (i) - Compost(ii) - Organic matter B (i) - Fertilizer(ii) - Potassium and magnesium C (i) - Bio- fertilizer(ii) - Blue green algae D (i) - Green manure(ii) - Nitrogen and phosphorous
Solution
The correct option is D. (i) - Green manure (ii) - Nitrogen and phosphorous. This practice is known as green manuring. In this process, certain plants like sunn hemp, guar etc., are grown and then ploughed and mixed with soil. These plants decompose in the soil, resulting in the formation of green manure which enriches the soil with essential nutrients like nitrogen and phosphorous.
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