Brown manuring is beneficial in which of the following crops?

Correct option is C

• Brown manuring = Raising a dense cover crop (e.g., Sesbania) and killing it with herbicide to create surface mulch.
• Highly effective in direct-seeded rice (DSR) where weed pressure is high.
• It suppresses weeds, conserves moisture, and adds organic matter.
• Not widely practiced in wheat, sorghum, or chickpea.