胡萝卜田高效低毒低残留除草剂的筛选

THE SCREENING OF HERBICIDE WITH HIGH CONTROL EFFECT AND LOW TOXICITY AND RESIDUE IN CARROT FIELD

在内蒙古察右中旗进行了两年胡萝卜田除草剂筛选试验,结果表明,供试几种苗前土壤处理除草剂中,田普在用水量900.00 l/hm2时比用水量600.00 l/hm2时的除草效果好,株防效和鲜重防效高达90.79%和93.66%,且具有增产作用;田普的防效好于氟乐灵防效;金超尔和农得锄的防效较差;滨农99对胡萝卜有药害。几种用于苗期喷雾防除禾本科杂草的药剂中收乐通和精禾草克对禾本科杂草的防效最高;其次是精稳杀得;威霸株防效较差。

The herbicide screening test were carried out in Inner Mongolia ChaYouZhongQi for 2 years in the carrot field. The results showed that herbicide Pendimethalin（BASF） had better control effect in water 900. 001/hm^2 than 600. 001/hm^2. The weeds number and weight were controlled 90.79% and 93.66%. The carrot yield can be increased also. The control effect of Pendimethalin was better than herbicide Trifluralin, Pendimetalin made in China and S - metolachlor control effect were poor. The Aeetoehlor can damage seedlings of carrots. Several used in seedling stage herbicide, the Clethodim and Quizalofop - p - ethyl had the highest control effect to gramineous weed. Fluazifop-p- butyl was the second. Fenoxaprop- P- ethyl was poor.