Ahmet Tansel SERİM, A. SERİM, Salih MADEN

Orta Anadolu Bölgesi koşullarında Sulfosulfuron ve Mesosulfuron + Iodosulfuron'un topraktaki kalıcılığının biyoassay ile araştırılması

Buğday alanlarında yabancı otlara karşı kullanılan sulfosulfuron ve mesosulfuron + iodosulfuron'un Orta Anadolu koşullarında topraktaki kalıcılığı biyoassay yöntemi ile araştırılmıştır. Bu herbisitler buğdayda 2 farklı alanda, 2 farklı dönemde ve 3 farklı dozda kullanılmış ve uygulamadan 3, 6, 12 ve 15. ay sonra topraktaki kalıntıları ayçiçeği fide biyoassayi ile belirlenmiştir. Sulfosulfuron ve mesosulfuron + iodosulfuron uygulanan alanlardaki herbisit kalıntıları zaman içerisinde azalmıştır. Herbisit uygulama dönemleri ve uygulama yapılan alanlar arasındaki fark her iki herbisit için de oldukça önemlidir. Herbisit uygulama zamanlarının topraktaki herbisitlerin kalıntısına etkisinin 3. ayda düşük seviyede iken 6, 12 ve 15. aylarda önemli düzeyde olduğu görülmüştür. Birinci alandaki herbisitlerin kalıntı düzeyleri ikinci alandakilerden daha yüksek bulunmuştur.

Anahtar Kelimeler:

Sulfosulfuron, mesosulfuron + iodosulfuron, topraktaki kalıntı, bioassay, Orta Anadolu Bölgesi

Research of Sulfosulfuron and Mesosulfuron + Iodosulfuron persistance in soils with bioassay in conditions of the Central Anatolia Region

Sulfosulfuron and mesosulfuron + iodosulfuron residues, used against weeds in wheat production areas, were investigated under the conditions of the Central Anatolia Region. Herbicides were used in two different locations, in two different periods and at three rates and their residues were determined at 3, 6, 12, and 15 months after the application using a sunflower seedling bioassay. Sulfosulfuron and mesosulfuron+iodosulfuron residues decreased during the investigation period. Differences in the herbicide application times and sites are very important for both herbicides. Effects of herbicide application time on the herbicide residues in the soil were limited at 3 months, but were significant at 6, 12, and 15 months. Herbicide residues in the first site examined were higher than that in the second site.

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