YADAV MR, PARIHAR CM, JAT SL, et al. Effect of long-term tillage and diversified crop rotations on nutrient uptake, profitability and energetics of maize (Zea mays) in north-western India. Indian J Agri Sci. 2016;86(6):743–9. doi:10.56093/ijas.v86i6.58897