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通过来用农达、西玛津等5种除草剂防除苎麻地上成片的红花酢浆草,结果表明:适于防除红花酵浆草的除草剂有西玛津、草甘膦及农达+西玛津混合剂3种,其防除效果达88,69%~97.78%,但西玛津单用或与草甘膦混用、残效期较长为6~9个月。采用西玛津+农达成量混合使用,残效期较短为2~3个月,是防除红花酢浆草的最佳除草剂组合,施药最适宜的时期为红花酢浆革开花前茎叶旺盛生长期,最经济有效的用量为1:3的西农合剂300~400g/667m2,本药剂组合适用于二龄以上苎麻国行间定向喷雾。另外,采用低浓度西农合剂喷施50d后,播种白菜及移栽辣椒苗等无不良影响。
Through the use of Nongda, simazine and other five kinds of herbicides to control ramie on the ground into a film Sorrel, the results showed that: suitable for the control of safflower slender herbicide Simazine, glyphosate and agricultural Up to + Simazine mixture of 3 kinds of its control effect of 88,69% ~ 97.78%, but Simazine alone or mixed with glyphosate, the residual effect longer for 6 to 9 months. The use of simazine + agricultural reached the amount of mixed use, the short residual period of 2 to 3 months, is the best herbicide to control Sorghum sativa combination, the most appropriate period of spraying the saffron flower pulp before flowering Stems and leaves vigorous growth period, the most cost-effective dosage of 1: 3 West agricultural mixture 300 ~ 400g / 667m2, the combination of this agent is suitable for more than two years of ramie directed spray between the lines. In addition, the use of low concentrations of West agricultural mixture spraying 50d, sowing cabbage and transplanting pepper seedlings and other adverse effects.