ACTA AGRICULTURAE BOREALI-SINICA ›› 2001, Vol. 16 ›› Issue (4): 125-131. doi: 10.3321/j.issn:1000-7091.2001.04.026

Special Issue: Oil crops

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Studies on Multiple Combinations of Postemergence Herbicides with Surfactants for Weed Control in Soybean

LU Xiangyang1, XU Jun1, CHEN Li1, LIN Xiangming2, LIU Xunhao3, LI Sunrong3   

  1. 1. Institute of Plant Protection, Beijing Academy of Agricultural and Forestry Sciences, Beijing 100089, China;
    2. Development Centre, Agricultural Ministry of China, Beijing 100026, China;
    3. Department of Agronomy, China Agricultural University, Beijing 100094, China
  • Received:2001-02-16 Published:2001-12-28

Abstract: The experiment of five way combinations of fomesafen,bentazon,quizalofop p ethyl,ABS and JFC was conducted to determine their optimum proportion of application and relation of mutual action (RMA) in soybean field by Quadratic Regression Design The RMA was determined with regressive coefficient T test and Changing Variable ANOVE The results of the two methods for evaluating the RMA of herbicides were identical,which showed that combination of formesanfen and bentazon had synergism to abutilon thophrasti;mixture of fomesanfen and quizalofop P had antagonism to Aararanthus ascendens Loisel;the others were additive or independent The results of the two methods above evaluating the RMA between herbicides and surfactants were not identical The reason was that RMA and its degree between factors could vary with different rates.RMA expressed by Regressive coefficient T test was at the whole range of the experimental rate.But RMA expressed by Changing Variable ANOVA was at the certain range(e.g.optimum proportion).Three herbicides with surfactant ABS and JFC had synergism by changing variable ANOVA The optimum proportion calculated by calculus could go beyond the level of the experiments while the analytical method of percentage had a good result.

Key words: Soybean, Fomesafen, Bentazon, Quizalofop-p-ethyl, Surfactants, Reg ression design

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Cite this article

LU Xiangyang, XU Jun, CHEN Li, LIN Xiangming, LIU Xunhao, LI Sunrong. Studies on Multiple Combinations of Postemergence Herbicides with Surfactants for Weed Control in Soybean[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2001, 16(4): 125-131. doi: 10.3321/j.issn:1000-7091.2001.04.026.

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