Multiple choice

Which of the following plants are used as green manure in crop fields and in sandy soils?

  1. Dichanthlum annulatum and Azolla pinnata

  2. Crotalaria juncea and Alhagi maurorum

  3. Calotropis procera and Phyllanthus niruri

  4. Saccharum munja and Lantana camara

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Crotalaria juncea (sunn hemp) and Alhagi maurorum are well-known plants used as green manure to improve soil fertility in agricultural fields.