吉林省农田杂草调查结果与分析

Investigation and Analysis of Crop Field Weeds in Jilin Province

对吉林省不同生态区域的玉米、水稻、大豆、小麦田的杂草种类、密度、分布、优势种群等基本情况进行了调查。调查结果表明:吉林省农田在样点地中出现的杂草有36科130种。其中,禾本科杂草17种,阔叶杂草113种;旱田杂草27科103种,水田杂草14科29种;玉米田杂草27科81种,大豆田杂草25科78种,小麦田杂草20科58种。吉林省旱田菊科的苣荬菜、山苦菜、小蓟、苍耳普遍发生,危害加重,禾本科的稗草与苘麻、反枝苋、水棘针、铁苋菜、藜、蓼等大面积发生,水田杂草主要形成了禾本科+阔叶+莎草科的杂草群落,个别地方水绵和藻类发生危害较重。

Basic status of weeds in crop fields has been investigated in 2000 with their species, density, distribution and advanced species groups.These fields include maize, rice, soybean and wheat fields in different ecological areas in Jilin province. The results show that there are 36 families, 130 species of weeds in sampling sites.Among them,17 species are gramineae,113 species are wide leaf, 27 families,103 species are in dry lands,14 families,29 species in water lands.27 families, 81 species in maize fields,25 families,78 species in soybean fields and 20 families,58 species in wheat fields.