... Environ., 93: 33 43. Davies, M.G., K.A. Smith, and A.J.A. Vinten. 2001. The mineralisa-tion and fate of nitrogen following ploughing of grass and grass-clover sward. Biol. and Fertil. of Soils, 33 :4 23 434 .Duxbury, ... (Modi-fied from Jones, J.W., W.D. Graham, D. Wallach, W.M. Bostick, and J. Koo. 2004. Trans. ASAE, 47(1) :33 1 33 9.)1 3 57911 13 15171921 23 252729YearAnnual changes in SOC, kg ha -1 Measured ... ha−1)CT RT % Increase CT RT % IncreaseSimulated 10-year average2651 35 65 34 6007 7750 29Gigou et al. (2000) 26 03 3599 38 633 9 8704 37 Notes: CT = conventional tillage; RT = ridge tillage.©...