回归最优设计在麦田杂草防除中的应用  

Application of Optimum Regression Design in the Chemical Control of Weeds in Wheat Field

作　　者：娄国强[1] 吕文彦[1] 

机构地区：[1]河南科技学院植物保护系,河南新乡453003

出　　处：《安徽农业科学》2006年第12期2766-2767,共2页Journal of Anhui Agricultural Sciences

基　　金：农业部种植结构调整重大技术专项研究(2003-07-02A)。

摘　　要：依据二次饱和D-最优设计原理,研究了苯磺隆和骠马的用量与除草效果的变化规律。结果表明:土壤施药方法最佳用量为苯磺隆12.3543g/hm2+骠马67.8318ml/hm2;茎叶施药方法最佳用量为苯磺隆11.4104g/hm2+骠马74.4595ml/hm2;其对后茬作物玉米、棉花、大豆安全。The principle of quadratic saturation D -optimum regression design was used to probe into the interrelation between the dosage of tribenuron-methyl and fenoxiapro-pethyl and the control effect of weeds in wheat field and the regression models were established. The result showed that the best dosage for soil treatment was 12.542 3 g of tribenuron -methyl and 67.831 8 ml of fenoxiapro-pethyl per hectare. The best dosage for stem treatment was 11.410 4 g of tribenuron -methyl plus 74.459 5 ml of fenoxiapro-pethyl. Both of the treatments were safe for later crop including corn, cotton and soybeen.

关 键 词：麦田 化学除草 最优设计 

分 类 号：S451.221[农业科学—植物保护]