Which of the following plants are used as green manure in crop fields – McqOptions

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1.	Which of the following plants are used as green manure in crop fields and in sandy soils?
A.	Dichanthlum annulatum and Azolla pinnata
B.	Crotalaria juncea and Alhagi maurorum
C.	Calotropis procera and Phyllanthus niruri
D.	Saccharum munja and Lantana camara
Answer» C. Calotropis procera and Phyllanthus niruri

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