1. Effects of weed control and row spacing in conventional tillage, reduced tillage, and nontillage on soybean seed quality;Bowman;Plant Dis.,1986
2. Influence of tillage systems on annual weed densities and control in solid-seeded soybean (Glycine max);Buhler;Weed Sci.,1990
3. Effect of timing of weed control on the incidence of seedborne fungi in dry bean seeds;Chagas;Fitopatol. Brasil.,1979
4. Root development and growth response of corn following mulching, cultivation, or interrow compaction Agron;Chaudhary;J.,1974
5. Conservation Technology Information Center, 1999. Crop residue management-Illinois [Online]. Available at http://www.ctic.purdue.edu/cgi-bin/CRMMap.exe?Year=1996 &Output=Acres&Area=Illinois&Image=IL&Button=State+Summary+++&Method=Map&Previous=Illinois&Backto=Midwest&From=4 (verified 11 Dec. 1999).