Like Ecological

Agricultural

any other issues 

So far, the major problems of rice-wheat system in South Asia are the unsustainable production system, degradation of soil physical properties as result of puddling, depletion of SOC ad N.

Thanks, Dr. Islam for your suggestions

Dear Vijay please consider this article

Chauhan, B.S., Mahajan, G., Sardana, V., Timsina, J. and Jat, M.L. (2012) Productivity and sustainability of the rice-wheat cropping system in the Indo-Gangetic Plains of the Indian subcontinent: problems, opportunities, and strategies. Advances in Agronomy 117, 315-369.

• Herbicide resistance in major weeds of rice-wheat system
• Ground water depletion
• Soil compaction
• Low in soil fertility

Thanks, Dr Dey for your valuable inputs.

Thanks Dr. Venkatesh for your suggestions.

Soil fertility, compactness, ground water... all of these suggest abiotic induced stress are impacting the cropping of theses grains?