芫荽多采用直播(撒播)的种植方法,可按播种时间分为春季、夏季和秋季杂草,撒播的芫荽田间杂草甚多,危害严重,必须认真防除。一、芽前除草1.氟乐灵播前每亩用48%氟乐灵乳油100～150毫升,加水30～40升喷雾,覆土2～3厘米厚,可消灭多种小籽粒芽期杂草。2.利谷隆每亩用50%利谷隆可湿性粉剂200～250克,加水50升,于芫荽播后苗前喷雾。沙土用药量要减量到每亩90克。田间不可积水。也可在芫荽出苗后2～3叶期,用50%利谷隆可湿性 Coriander and more by direct sowing (sowing) planting methods, according to sowing time can be divided into spring, summer and autumn weeds, sowing coriander weeds many, serious harm, we must carefully control. First, pre-emergence weed 1. Trifluralin pre-sowing with 48% of trifluralin EC 100 to 150 ml, add water 30 to 40 liters spray, cover 2-3 cm thick, can eliminate a variety of small grain bud weed . 2. Li Gu Long with 50% Liurong Long acre wettable powder 200 ~ 250 grams, add water 50 liters, after the seedlings in the coriander sowing spray. Sand dosage to be reduced to 90 grams per mu. Field can not accumulate water. Can also be 2 to 3 leaf stage after emergence of coriander, with 50% liraglutide wettable