1. The bed leveler (commercially known as the “Does More”) is a combination unit consisting of a cylindrical blade cutter, spike tooth harrow, and drag.
2. Response of Johnsongrass to Soil-Incorporated Trifluralin
3. Vannoorbeeck, L. R. 1965. Unpublished M.S. Thesis, University of Arizona.
4. The differential ground-driven tiller (commercially known as “W&A”) consisted of two unequal size cylindrical blade-type tillers linked together, creating a differential speed of rotation of the cylinders and mixing of the soil.
5. Persistence of herbicides in soils;Sheets;Proc. WWCC,1962