کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4507646 1321372 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An estimation of producer returns from Bt cotton with varying refuge sizes
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
An estimation of producer returns from Bt cotton with varying refuge sizes
چکیده انگلیسی
The US Environmental Protection Agency (EPA) has mandated an Insect Resistance Management (IRM) program that attempts to preserve the benefits of insect protection from Bacillus thuringiensis (Bt) cotton. According to that mandate, growers planting Bt cotton are required to follow the IRM practices designed to keep some lepidopteran populations from being exposed to the Bt protein. Thus, a refuge of non-Bt cotton must be planted. Currently, producers may select among different sprayed and unsprayed refuge percentages. Recently, EPA has been petitioned to remove all refuge requirements. In order to compare farm-level returns from various refuge requirements, returns for a cotton farm in the Mississippi Delta were calculated from observed and simulated yields. Results indicate higher mean returns above insecticide costs for Bt cotton than for non-Bt (refuge) cotton. For any given non-Bt cotton (refuge) percentage, returns are higher without increased risk when insecticide sprays are applied.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Crop Protection - Volume 27, Issue 6, June 2008, Pages 1003-1008
نویسندگان
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