Shanholtz, Vernon O.Lillard, James H.2014-02-252014-02-251968http://hdl.handle.net/10919/25665For many years one of the goals of tillage research at Virginia Polytechnic Institute has been to develop a system which (a) reduces the amount of tillage required, (b) maintains an open-sail structure conducive to good rainfall intake and storage, and ( c) makes more beneficial use of the residues of preceding crops for minimizing evaporation, soil erosion and runoff losses. From these investigations evolved the no-tillage system. With this system the crop is planted directly into a chemically killed sod or crop residue with no prior mechanical seedbed preparation, thereby utilizing vegetation from the preceding crop for surface mulch.31 pagesapplication/pdfen-USIn CopyrightTD201 .V57TillageSoil moistureCornReport158626