文章基本信息

标题：Impact of GE Crop Adoption on Quality-Adjusted Herbicide Use in U.S. Corn Production
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作者：Nehring, Richard F. ; Martin, Andrew ; Fernandez-Cornejo, Jorge 等
期刊名称：Journal of Agribusiness
印刷版ISSN：0738-8950
出版年度：2011
期号：Suppl
出版社：Journal of Agribusiness
摘要：This paper presents findings on the use of HT corn and quality-adjusted herbicide use for 12 key corn producing states using a panel data set for 1986-2008. Our preliminary findings indicate an insignificant impact of HT corn on herbicide use, conditioning or accounting for HT corn with other important drivers of corn herbicide use: HT soy, corn output price, glyphoste price, nonherbicide glyponsate price, and percentage of continuous corn and low-till corn. However, we find a positive and significant impact of HT corn on herbicide use in selected states, using regional interaction terms. We use econometric techniques to avoid spurious regression results. Other preliminary runs indicated that the results hold when running the US and regional interactions on 1986-2006 and 1986-2007 data.
关键词：HT-corn;herbicides;weed resistance;glyphosate;corn