小茴香属伞形科一年生草本作物,经济价值较高,可作蔬菜调料,我区各外贸站大量收购。但种植小茴香草害非常严重。据我们1983年4月份在巴楚地区五七新村茴香地调查,1平方米有灰黎、稗草2,000多株,茴香苗处于杂草丛生之中。 今年初春我们在小茴香地使用氟乐灵进行试验示范,示范面积为20亩,取得了较好的除草效果。 试验表明:我区早春(三月初)天气虽然干旱,地温也较低,5cm地面温度只有0—3℃,但在小茴香播种前使用氟乐灵,对防除一年生杂草～灰黎、稗草仍然能发挥其药效。我们于3月5日施药,每亩用药量 Anise Umbellifera annual herbaceous crops, high economic value, can be used for vegetable sauce, a large number of foreign trade me station acquisition. But the cultivation of fennel grass is very serious. According to our survey conducted in Fenghuang Village, Wusi Village, Bachu District, in April 1983, there were over 2,000 plants of ashley and barnyard grass in 1 square meter. The fennel seedling was in the weeds. Early spring of this year, we used trifluralin to test and demonstrate the demonstration area of ​​20 acres and achieved good weeding effect. The results showed that although the weather in early spring (early March) in our district was low and the ground temperature was low, the ground temperature in 5cm was only 0-3 ℃. However, trifluralin was used before sowing of fennel, Still can play its efficacy. We applied pesticide on March 5, the dosage per mu