EFFECTS OF INCORPORATION EQUIPMENT, APPLICATION METHOD, AND SOIL PLACEMENT OF SULFENTRAZONE ON INJURY TO FLUE-CURED TOBACCO

Abstract Research was conducted at one site in 1999 and three sites in 2000 to evaluate the influence of incorporation equipment and application method on flue-cured tobacco response to sulfentrazone. Sulfentrazone was applied at one (1X) and two (2X) times the recommended use rates with no incorporation, incorporation with a finishing disk or incorporation with a field cultivator prior to bedding. An application also was made to the soil surface prior to transplanting (PRE-T). At both the 1X and 2X rates of sulfentrazone, no differences in stunting were observed due to application method before bedding. At the 1X rate, the level of stunting was similar for no incorporation before bedding, incorporation with the field cultivator, and the PRE-T application. However, at the 2X rate, all incorporation treatments had greater stunting than the PRE-T application; stunting was never greater than 9% with PRE-T treatments. Stunting varied greatly across locations, making general conclusions on stunting based on me...