Fig. 2.

Cumulative C-input through crops residue (a) and C-stabilization in different C-fractions (b) as influenced by different tillage based crop establishment practices in rice-based cropping systems. CTTPR-CT, puddled transplant rice followed by conventional till wheat/maize; NPTPR-ZT, non-puddled transplant rice followed by zero-till wheat/maize; ZTTPR-ZT, zero-till transplant rice followed by zero-till wheat/maize; ZTDSR-ZT, zero-till direct seeded rice followed by zero-till wheat/maize. The columns with different letters are significantly different at p ≤ 0.05.