我省果园杂草种类多,生长繁茂,消耗肥水,影响果品产量和质量。为此,我们对我省主要果产区的杂草种类及发生规律进行了调查,并筛选出有效的化学农药,为今后大面积推广应用提供依据。材料与方法供试药剂有50％西玛津(山西晋城东沟化工厂出品)25％敌草隆、50％除草剂1号(西安农药厂出品)。3月下旬先松土,除去越冬杂草,再用除草剂处理地面(表1)。土壤喷洒每亩兑水100—125kg,在无风时均匀喷湿地表;毒土用15kg/亩细湿黄土拌匀,闷半小时后均匀撒于地面。随机排列,定期在各处理区抽样调查每1/4m~2杂草数。试验数据采用邓肯氏全距测验进行统计分析。结果与分析分别在我省秦岭北麓、渭河滩地、渭北旱原等地果园调查,对果树危害较重的单子叶杂草有行仪芝、马唐、狗尾草、菅草、宾草、香 Orchard weed species and more lush growth, consumption of fertilizer, affecting fruit yield and quality. To this end, we conducted a survey on the types and occurrence of weeds in the main fruit producing areas in our province, and screened effective chemical pesticides to provide the basis for large-scale popularization and application in the future. Materials and Methods The test agents were 50% simazine (Shanxi Jincheng Donggou Chemical Factory) 25% Diuron, 50% Herbicide No. 1 (produced by Xi’an Pesticide Factory). Loosen the soil in late March to remove overwintering weeds, and then use the herbicide to treat the ground (Table 1). Soil sprayed per mu of water 100-125kg, in the absence of wind evenly spray wet surface; toxic soil with 15kg / mu fine wet loess mix, bored half an hour evenly sprinkled on the ground. Randomly arranged, regular sampling in the treatment area of ​​each 1 / 4m ~ 2 weeds number. Test data using Duncan’s full range test for statistical analysis. Results and Analysis In the northern foot of Qinling Mountains, Weihe River beach, Weibei dryland and other places orchards survey, fruit trees heavier monocotyledonous Yoshitomo, Crabgrass, Setaria viridis, Jian grass, Bindou, incense