|Source: Adapted from USDA National Agricultural Statistics Service, “Tillage practices released,” new releases, June 30,2011
- No-till—a procedure whereby a crop is planted directly into a seedbed not tilled since harvest of a previous crop, or the planting of a crop into sod, previous crop stubble, or a cover where only the intermediate seed zone is disturbed.
- Other conservation tillage—tillage practices prior to planting that result in a minimum of 20 percent groundcover or residue being retained on the surface following planting. Grass and weed control is accomplished primarily with herbicides. Includes ridge till, strip till, and mulch till.
- Conventional till—systems where 100 percent of the surface is mixed or inverted by plowing, power tilling, or multiple disking.
- Sum of no-till, other conservation tillage, and conventional till percents of total may not add to 100 percent due to rounding.
- Wheat seeded the previous fall for all intended purposes, including grain, cover, silage, hay, or any other utilization.
- Total excludes alfalfa seedings.
- New alfalfa seeded or to be seeded during 2007. Alfalfa seeded acres will be available in January 2008.