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प्रश्न
What is green manuring ? Give suitable examples for green manures.
उत्तर
Green manuring is a practice of ploughing and mixing of green crops in the soil for improving the physical structure as well as the fertility of the soil. Green manures are generally thick growing leguminous and non-leguminous plants.
Examples of green manures: Horse gram (Dolichos uniflorus), cowpea or lobia (Vigna sinensis), and lentil or masoor (Lens culinaris).
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संबंधित प्रश्न
Compare the use of manures and fertilizers in maintaining soil fertility.
Why is irrigation essential ?
Explain various steps in hybridization of crop plants.
Describe the biological method of weed control.
Classify plant diseases depending upon their occurrence and transmission.
Give two examples each of
(a) Narrow leaved rabi season weed.
(b) Broad leaved kharif season weed.
Explain what will happen if in a cultivated field only manures are supplied and in another field only fertilizers are supplied, keeping all other conditions similar.
Define irrigation. Why is irrigation of crops essential? Mention the harmful effects of excessive irrigation.
Explain various types of irrigation systems in India. How can efficiency of applied water be increased in agriculture.
Why is organic matter important for crop production?
