Soybean (Glycine max) Response to Thifensulfuron and Bentazon Combinations
| Autor: | Stephen E. Hart, Gordon K. Roskamp |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
0106 biological sciences
Chemistry fungi Bentazon food and beverages 04 agricultural and veterinary sciences Plant Science Phytopharmacology 01 natural sciences 010602 entomology chemistry.chemical_compound Animal science Combined treatment Botany Glycine 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Grain yield Phytotoxicity Agronomy and Crop Science After treatment |
| Zdroj: | Weed Technology. 12:179-184 |
| ISSN: | 1550-2740 0890-037X |
| DOI: | 10.1017/s0890037x00042767 |
| Popis: | Field studies were conducted in 1995 and 1996 at three locations in Illinois to determine soybean response to combinations of thifensulfuron and bentazon. Thifensulfuron was applied at 2.2 to 8.8 g ai/ha alone or in combination with 280 to 560 g/ha of bentazon. Soybean injury 30 d after treatment ranged from 0 to 22% when thifensulfuron was applied alone at 2.2 g/ha. Increasing thifensulfuron rate to 8.8 g/ha increased soybean injury to a range of 12 to 44%. Soybean grain yield was significantly reduced compared to the yield of untreated soybean when thifensulfuron was applied at 4.4 and 8.8 g/ha in two of five and four of five experiments, respectively. The addition of bentazon to thifensulfuron consistently reduced soybean injury and stunting. In many cases, increasing the bentazon rate to 420 g/ha decreased soybean injury from thifensulfuron to a greater extent than 280 g/ha. In cases where thifensulfuron decreased soybean yield, the addition of 420 or 560 g/ha of bentazon restored yields to levels that were not lower than untreated soybeans. These studies demonstrate that thifensulfuron at 2.2 to 8.8 g/ha in combination with bentazon at 420 g/ha may be safely applied to soybean for broadleaf weed control. |
| Databáze: | OpenAIRE |
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