Question
Biology Question on Microbes in human welfare
Which of the following plants are used as green manure in crop fields and in sandy soils:
A
Crotalaria juncea and Alhagi camelorum
B
Calotropis procera and Phyllanthus niruri
C
Saccharum munja and Lantana camara
D
Dichanthium annulatum and Azolla nilotica
Answer
Crotalaria juncea and Alhagi camelorum
Explanation
Solution
Crotalaria juncea and Alhagi camelorum are commonly used as green manure in crop fields and in sandy soils. These plants have nitrogen-fixing properties, which can help enrich the soil with nitrogen and improve its fertility, making them valuable for agricultural purposes.
So, the correct option is (A): Crotalaria juncea and Alhagi camelorum