Effect of Oil Adjuvants and Nitrogen Fertilizer on the Efficacy of Imazethapyr Applied at Conventional and Ultralow Spray Volumes
| Autor: | James E. Hanks, Robert E. Mack, Elizabeth J. Jones, Gene D. Wills |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
0106 biological sciences
Ipomoea lacunosa biology Ammonium nitrate food and beverages 04 agricultural and veterinary sciences Plant Science biology.organism_classification Phytopharmacology 01 natural sciences Echinochloa crus-galli 010602 entomology chemistry.chemical_compound Horticulture Pulmonary surfactant chemistry Botany 040103 agronomy & agriculture Urea 0401 agriculture forestry and fisheries Weed Agronomy and Crop Science Malvaceae |
| Zdroj: | Weed Technology. 12:441-445 |
| ISSN: | 1550-2740 0890-037X |
| DOI: | 10.1017/s0890037x00044110 |
| Popis: | Field experiments evaluated pitted morningglory, velvetleaf, and barnyardgrass control in soybean with imazethapyr applied alone and with either crop oil concentrate at 1.0% v/v, a blend of methylated seed oil and organosilicone surfactant, or a blend of methylated seed oil, phosphate esters, and organosilicone surfactant at 0.5% v/v, each with and without a 28% N mixture of urea and ammonium nitrate (URAN) applied at 2.3 L/ha. Treatments were applied at spray volumes of 94 and 9.4 L/ha. Control of each species was often increased with the addition of both oil adjuvants and URAN. The blend of methylated seed oil, phosphate esters, and organosilicone surfactant and the blend of methylated seed oil and organosilicone surfactant were each more effective than crop oil concentrate on pitted morningglory and barnyardgrass, while each oil adjuvant was similar on velvetleaf. The URAN effectively increased imazethapyr control of all species. Control of all species was similar at the spray volume of 9.4 L/ha and at 94 L/ha. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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