华北农学报 ›› 1999, Vol. 14 ›› Issue (2): 119-124. doi: 10.3321/j.issn:1000-7091.1999.02.024

所属专题: 土壤肥料

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土壤湿度对几种除草剂药效的影响及其数学模型探讨

郭怡卿, 张付斗, 许胡兰   

  1. 云南省农业科学院植物保护研究所, 昆明 650205
  • 出版日期:1999-06-28
  • 基金资助:
    云南省自然科学基金

Effects of Soil Moisture on Several Herbicides and Its Mathematical Model

Guo Yiqing, Zhang Fudou, Xu Hulan   

  1. Plant Protection Research Institute, Yunnan Academy of Agricultural Science, Kunming 650205
  • Published:1999-06-28

摘要: 运用二次正交旋转组合设计,以对稗草抑制率为目标函数,以除草剂用量、土壤湿度为决策变量,建立目标性状与除草剂用量及土壤湿度之间的数学模型。通过模拟寻优,得到在不同土壤湿度影响下丁草胺、乙草胺、农得时、甲磺隆4种除草剂抑制稗草的优化方案。模型解析结果表明,当其他条件一致时,除草剂的用量是除草效果的关键,土壤湿度对除草剂的药效存在不同程度的影响,通过调节土壤湿度可使土壤处理除草剂药效提高。

关键词: 土壤湿度, 除草剂, 药效, 数学模型

Abstract: Using methods of rotational designs and making the effects of controlling E. crusgallis as goal function and dosage of herbicide and soil moisture as decision-making variable, the mathematical model of the herbicide's dosage and soil moisture to goal function was set up. Simulating and seeking classy with it, acquired the optimize scheme was obtained to inhibit E. crusgallis by butachlor, acetochlor, bensulfuronmethy and methsuron-meth under influence of deferent soil moisture. The result showed, when the other conditions were same, the pivotal factor to control weeds was the herbicide dosage, and soil moisture had different effect on the efficiency of herbicides.When the soil moisture was excellont, the efficiency of the herbicide can be increased.

Key words: Soil moisture, Efficiency of herbicide, Mathematical model

引用本文

郭怡卿, 张付斗, 许胡兰. 土壤湿度对几种除草剂药效的影响及其数学模型探讨[J]. 华北农学报, 1999, 14(2): 119-124. doi: 10.3321/j.issn:1000-7091.1999.02.024.

Guo Yiqing, Zhang Fudou, Xu Hulan. Effects of Soil Moisture on Several Herbicides and Its Mathematical Model[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1999, 14(2): 119-124. doi: 10.3321/j.issn:1000-7091.1999.02.024.

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