| 苯磺隆防除夏玉米田阔叶杂草效果研究 |
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| 引用本文： | 韩世栋,李青三,刘晓翠.苯磺隆防除夏玉米田阔叶杂草效果研究[J].潍坊高等职业教育,2007(3). |
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| 作者姓名： | 韩世栋 李青三 刘晓翠 |
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| 作者单位： | 潍坊职业学院，昌乐县北岩镇农技站，临朐县卧龙镇农技站 山东 潍坊 261031，山东 昌乐 262407，山东 临朐 262600 |
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| 基金项目： | 山东省科技厅星火计划项目,编号200506012。 |
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| 摘 要： | 75%苯磺隆干悬浮剂(tribenuron-methyl DF)对夏玉米田阔叶杂草具有较好的防效,适宜的用药剂量为1.0g/666.7m2。适宜的剂量下,药后45d对苘麻、苋菜和铁苋的株数防效和鲜重防效达到94.8%～100.0%和98.7%～100.0%,对马齿苋和田旋花的株数防效和鲜重防效分别为68.4%-81.1%和86.6%～90.8%。苯磺隆对幼龄杂草的防效较好,杂草2-3叶期喷药的防草效果为最好,大龄杂草喷药后,能够通过发生新芽,恢复生长,降低除草效果。
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| 关 键 词： | 苯磺隆 夏玉米 阔叶杂草 |
Study on the Feasibility of Tribenuron - methyl to Control Broad - leaved Weeds in Summer Cornfield |
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| Authors: | HAN Shidong LI Qingsan LIU Xiaocui |
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| Abstract: | The tribenuron - methyl has a good effect in controlling broad - leaved weeds in summer cornfield. The appropriate dosage of 75% tribenuron - methyl is 1. 0g/667m2. On the 45th day after applying tribenuron - methyl, the death rate of the Chinese mallow, amaranth and copperleaf herb is 94.8% -100.0% and the reduction rate of green weight of the Chinese mallow, amaranth and copperleaf herb is 98. 7% - 100. 0% . The death rate of the purslane and convolvulus arvensis is 68. 4% -81. 1% and the reduction rate of green weight of the purslane and convolvulus arvensis is 86. 6% ~ 90. 8%. The effect on tribenuron - methyl controlling broad - leaved weeds is better when broad - leaved weeds are younger, and the effect is best when broad - leaved weeds have 2-3 leaves, but the effect is reduced when broad - leaved weeds is older because it could pullulate and resume growing after applying tribenuron - methyl. |
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| Keywords: | tribenuron - methyl summer corn broad - leaved weeds |
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