广德县冬小麦田杂草发生规律及防治技术

摘要

Based on the investigation of weeds in winter wheat field in Guangde County during 2010-2014, 18 kinds of weeds were found obviously. The weeds germinated commonly in early November when the soil moisture was good in wheat sowing stage, and the ger-mination of weeds was basically finished in the middle of December. Sealing weeds when covering soil (no later than 2 days) after wheat sowing was the key measure to control weeds. The time of chemical treatment for weed stems and leaves could be appropriately delay ac-cording to wheat and weed seedling situ-ation, and the optimal time was early De-cember that most of weeds germinated.%通过2010—2014年对广德县小麦田杂草的调查，发现可明显查见的杂草有18种左右。小麦播期墒情较好的情况下出草较为整齐，时间为11月上旬，12月中旬杂草出草基本结束。在小麦播后覆土的同时（最迟不超过播后2d）进行土壤封杀，是控制杂草密度最关键的措施。茎叶化除时间可根据小麦苗情及草情酌情适当推迟，可选在12月上旬杂草大部出草后进行。