Which of the following plants are used as green manure in crop field and in sandy soils?
A
Crotalaria juncea and Alhagi camelorum
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B
Calotropis procera and Phyllanthus niruri
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C
Saccharum munja and Lantana camara
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D
Dichanthium annulatum and Azolla nilotica
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Solution
The correct option is ACrotalaria juncea and Alhagi camelorum Crotalaria juncea and Alhagi camelorum are used as green manure in crop fields and sandy soils because these plants, when grown, replenish the soil with sufficient nutrients and nitrogen content after its usage by the crop plant.
So, the correct option is 'Crotalaria juncea and Alhagi camelorum'.