Conventional TillageConventional tillage is the sequence of operations tradi- tionally or most commonly used in a given geographic area to produce a given crop. The operations used vary considerably for different crops and in different regions.In the past, conventional tillage in Illinois included moldboard plowing, usually in the fall. Spring operations included one or more passes with a disk harrow or field cultivator before planting. More recently, conventional till- age has changed to include the use of a chisel plow instead of a moldboard plow, and newer combination tools are re- placing chisel plows. These implements leave more residue than traditional moldboard plows, but often not enough to qualify as conservation tillage.The soil surface following conventional tillage as practiced in the past was essentially free of plant residue. This was helpful with older planting equipment that had limited ability to plant into residue. ............It also buried weed seed and disease-bearing crop and weed residue, thereby helping to reduce problems with weeds and plant diseases before the advent of modern chemical control.
Posted on: Tue, 09 Sep 2014 11:28:11 +0000
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