Alternatives to Atrazine for Weed Management in Processing Sweet Corn
| Autor: | Roger L. Becker, Vincent A. Fritz, Martin M. Williams, Tom L. Rabaey, Zübeyde Filiz Arslan, R. Ed Peachey |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Herbicide regulation Pacific Northwest 04 agricultural and veterinary sciences Plant Science Biology Weed control 01 natural sciences food.food Mesotrione North Central Region chemistry.chemical_compound food Agronomy chemistry integrated weed management sweet corn industry 040103 agronomy & agriculture Lambsquarters 0401 agriculture forestry and fisheries Dimethenamid Atrazine Weed Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Weed Science. 64:531-539 |
| ISSN: | 1550-2759 0043-1745 |
| Popis: | Williams, Martin/0000-0002-6302-7724 WOS: 000380795500016 Atrazine has been the most widely used herbicide in North American processing sweet corn for decades; however, increased restrictions in recent years have reduced or eliminated atrazine use in certain production areas. The objective of this study was to identify the best stakeholder-derived weed management alternatives to atrazine in processing sweet corn. In field trials throughout the major production areas of processing sweet corn, including three states over 4 yr, 12 atrazine-free weed management treatments were compared to three standard atrazine-containing treatments and a weed-free check. Treatments varied with respect to herbicide mode of action, herbicide application timing, and interrow cultivation. All treatments included a PRE application of dimethenamid. No single weed species occurred across all sites; however, weeds observed in two or more sites included common lambsquarters, giant ragweed, morningglory species, velvetleaf, and wild-proso millet. Standard treatments containing both atrazine and mesotrione POST provided the most efficacious weed control among treatments and resulted in crop yields comparable to the weed-free check, thus demonstrating the value of atrazine in sweet corn production systems. Timely interrow cultivation in atrazine-free treatments did not consistently improve weed control. Only two atrazine-free treatments consistently resulted in weed control and crop yield comparable to standard treatments with atrazine POST: treatments with tembotrione POST either with or without interrow cultivation. Additional atrazine-free treatments with topramezone applied POST worked well in Oregon where small-seeded weed species were prevalent. This work demonstrates that certain atrazine-free weed management systems, based on input from the sweet corn growers and processors who would adopt this technology, are comparable in performance to standard atrazine-containing weed management systems. TUBITAK (Scientific and Technological Council of Turkey)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK); National Institute of Food and Agriculture, U.S. Department of AgricultureUnited States Department of Agriculture (USDA) [2012-03266] The authors greatly appreciate the technical support of Nick Hausman, Tom Hoverstand, Jim Moody, Charlie Rohwer and the crews at the University of Illinois and University of Minnesota. We thank TUBITAK (Scientific and Technological Council of Turkey) for supporting Z. F. Arslan. This material is based upon work that is supported by the National Institute of Food and Agriculture, U.S. Department of Agriculture (number 2012-03266). Mention of a trademark, proprietary product, or vendor does not constitute a guarantee or warranty of the product by the U.S. Department of Agriculture and does not imply its approval to the exclusion of other products or vendors that also might be suitable. |
| Databáze: | OpenAIRE |
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