Impact of 47 Years of No Tillage and Stubble Retention on
· Soil organic C concentrations as well as stocks were significantly higher under the treatment of NT SR N only in 0 10 cm compared with other treatments such as conventional tillage stubble burning 0 N no N application and conventional tillage SR 0 N Mineral associated organic C MOC of <0·053 mm was 5 12 times higher r = 0·68 p < 0·05 n = 32