Question

What is essential to be a good green manure plant?

• A. Grow quickly
• B. Be rich in nitrogen
• C. Be protective against erosion and leaching
• D. All of the above

Answer 1

Answer: (D)

All of the above

Green manures are prepared by the biodegradation of natural substances by the action of bacteria. This organic matter level keeps nutrients from leaching down beyond the reach of crops, provides food for microbial soil life, helps legumes fix nitrogen in their root nodules and helps the soil produce good structure and maintain the air-pore spaces essential to good crop health.

A good green manure plant should-

1. Grow quickly
   
2. Be rich in nitrogen
   
3. Be protective against erosion and leaching.

So, the correct answer is option D.