Leguminous Crops


 
 
Concept Explanation
 

Leguminous Crops

Growing Leguminous Crops for Soil Enrichment: Plants require nitrogen to make proteins. After harvesting, the soil becomes nitrogen deficient. Although plenty of nitrogen gas is available in air, plants cannot utilise it directly. They can absorb nitrogen only in the soluble form. Symbiotic association of rhizobium and leguminous plants like peas, grains, beans, etc., is a natural way of replenishing the soil with nitrogen. So, sometimes farmers grow these plants alternatively with other crops. This restores the nitrogen content of the soil which was used up by the earlier crop.

Sample Questions
(More Questions for each concept available in Login)
Question : 1

Plants can absorb nitrogen only in the _______________ form.

Right Option : C
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Explanation
Question : 2

Which of the following are correct?

(a) There is symbiotic association of rhizobium and leguminous plants like Carrot, Wheat, Maize, etc .

(b) Plants can absorb nitrogen only in the soluble form.

(c) Symbiotic association restores the nitrogen content of the soil which was used up by the earlier crop.

Right Option : B
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Explanation
Question : 3

The examples of leguminous plants are _______________.

Right Option : A
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Explanation
 
 
 
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