1. Andruschkewitsch R, Koch HJ, Ludwig B (2014) Effect of long-term tillage treatments on the temporal dynamics of water-stable aggregates and on macro-aggregate turnover at three German sites. Geoderma 217:57–64
2. Bhushan L, Ladha JK, Gupta RK, Singh S, Tirol-Padre A, Saharawat YS, Gathala M, Pathak H (2007) Saving of water and labor in a rice–wheat system with no-tillage and direct seeding technologies. Agron J 99:1288–1296
3. Byerlee D, Ali M, Siddiq A (2003) Sustainability of the rice–wheat system in Pakistan’s Punjab: how large is the problem? In: Improving the productivity and sustainability of rice–wheat systems: Issues and impacts. pp. 77–95
4. Chaturvedi GS, Mishra CH, Singh ON, Pandey CB, Yadav VP, Singh AK, Dwivedi JL, Singh BB, Singh RK (1995) Physiological basis and screening for tolerance for flash flooding. In: Ingram KT (ed) Rainfed lowland rice—agricultural research for high risk environments. International Rice Research Institute, Los Baños, pp 79–96
5. Erenstein O, Laxmi V (2008) Zero tillage impacts in India’s rice–wheat systems: a review. Soil Till Res 100(1):1–14