1. Bundy, L.G., Widen, P.C., 1991. Corn response to starter fertilizer: planting date and tillage effects. Potash and Phosphate Institute. Worcross, GA. In: Better Crops with Plant Food: Winter. 1991–1992, pp. 20–23.
2. Conservation Technology Information Center, 1998. Crop residue management survey. CTIC. West Lafayette, IN.
3. Corn hybrids response to four methods of tillage;Hallauer;Agron. J.,1985
4. No-till corn response to crop rotation and in-row residue placement;Janovicek;Agron. J.,1997
5. Effect of three conservation tillage practices on soil temperature and thermal properties;Johnson;Soil Sci. Soc. Am. J.,1985