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中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (21): 175-178.doi: 10.11924/j.issn.1000-6850.2012-3067

• 植物保护 农药 • 上一篇    下一篇

72%异丙甲草胺乳油对蔗田杂草的防除效果

尹炯 李文凤 黄应昆 罗志明 申科 毛永雷 徐宏 吉学进   

  • 收稿日期:2012-09-10 修回日期:2012-10-09 出版日期:2013-07-25 发布日期:2013-07-25
  • 基金资助:
    现代农业产业技术体系建设专项资金;云南省现代农业产业技术体系建设专项资金

Control Effect of Metolachlor 72% EC on Weeds in Sugarcane Fields

  • Received:2012-09-10 Revised:2012-10-09 Online:2013-07-25 Published:2013-07-25

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摘要： 为了明确异丙甲草胺在甘蔗大培土后芽前土壤处理对甘蔗田杂草的防除效果，通过田间试验研究了72%异丙甲草胺乳油不同剂量对甘蔗田杂草的防除效果及对甘蔗的安全性。结果表明：在5月底6月初甘蔗大培土后、杂草萌发前施用剂量为1500 mL/hm2和1950 mL/hm2的72%异丙甲草胺乳油，药后20天对蔗田单子叶杂草和双子叶杂草的株防效均达95.1%以上，药后40天株防效均达92.0%以上，鲜重防效达93.9%以上；其中1950 mL/hm2的使用剂量40天的株防效分别为95.7%和94.9%，鲜重防效为95.5%，且对甘蔗安全。

关键词: 成都, 成都

Abstract: In this paper, the safety and control effects of different dosages of metolachlor 72% EC were evaluated in sugarcane fields. The results showed that, pre-emergence application of metolachlor 72% EC with 1500 mL/hm2 and 1950 mL/hm2 after large earth-up in late May to early June could effectively control the weeds, control effects on mono- and dicotyledonous weeds were greater than 95.1% after a 20-day treatment, more than 92.0% after a 40-day treatment on weeds number, while over 93.9% on fresh weight of weeds after a 40-day treatment. The control efficiencies of metolachlor 72% EC treatment at a dosage of 1950 mL/hm2 after 40 days of treatment were 95.7% and 94.9% on mono- and dicotyledonous weeds number, respectively, and 95.5% on fresh weight of weeds. Observation was also suggested that application of metolachlor 72% EC was safety to sugarcane.

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