| 谷田除草剂筛选及安全性评价 |
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| 引用本文： | 张婷,赵玲,高翔,李琳,罗焱杰,师志刚,程汝宏,张喜瑞,杨伟红,王根平,李秉华.谷田除草剂筛选及安全性评价[J].农业工程,2022,12(9):128-132. |
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| 作者姓名： | 张婷 赵玲 高翔 李琳 罗焱杰 师志刚 程汝宏 张喜瑞 杨伟红 王根平 李秉华 |
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| 作者单位： | 1.河北省农林科学院谷子研究所，农业农村部特色杂粮遗传改良与利用重点实验室（部省共建），河北省杂粮研究实验室，河北 石家庄 050035 |
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| 基金项目： | 国家重点研发计划（2019YFD1001700，2018YFD1000705-4）、国家谷子糜子产业技术体系（CARS-06-13.5-A7）、 |
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| 摘 要： | 为筛选谷田安全、高效除草剂，选用目前生产上常用的4种谷田双子叶除草剂和课题组研发的双子叶除草剂“谷草清”，分别与烯禾啶配合使用，研究推荐剂量、推荐剂量1.5倍和推荐剂量2.0倍3种情况下，对杂草的防效和抗烯禾啶品种冀谷42产量的影响，从中筛选出最佳除草剂组合为“谷草清+烯禾啶”。在此基础上进一步进行安全性试验，以谷草清的推荐剂量1800 mL/hm2为基础，设置1.0、1.5、2.0、3.0、4.0和5.0倍不同的喷施浓度，即1800、2700、3600、5400、7200和9000 mL/hm2。喷施除草剂后，冀谷42均能正常生长，未见明显药害。药后30 d，9000 mL/hm2以内的喷药植株苗高和鲜质量均高于空白对照，3倍喷施剂量（5400 mL/hm2）以内的植株苗高和鲜质量均高于人工除草对照。5倍喷施剂量（9000 mL/hm2）以内的植株株高、穗长、产量与空白对照差异显著，与人工除草对照差异不显著。
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| 关 键 词： | 谷田 除草剂 安全性 冀谷42 |
| 收稿时间： | 2022/4/21 0:00:00 |
| 修稿时间： | 2022/7/7 0:00:00 |
Herbicides Screening and Safety Evaluation for Foxtail Millet (Setaria italica L.) |
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| zhangting,zhaoling,gaoxiang,lilin,liyanjie,shizhigang,chengruhong,zhangxirui,yangweihong,wanggenping and libinghua.Herbicides Screening and Safety Evaluation for Foxtail Millet (Setaria italica L.)[J].Agricultural Engineering,2022,12(9):128-132. |
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| Authors: | zhangting zhaoling gaoxiang lilin liyanjie shizhigang chengruhong zhangxirui yangweihong wanggenping and libinghua |
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| Affiliation: | 1.Institute of Millet Crops， Hebei Academy of Agriculture and Forestry Sciences，Key Laboratory of Genetic Improvement and Utilization for Featured Coarse Cereals（Co-construction by Ministry and Province）， Ministry of Agriculture and Rural Affairs，Key Laboratory of Minor Cereal Crops of Hebei Province，Shijiazhuang Hebei 050035，China2.Institute of Cereal and Oil Crops，Hebei Academy of Agriculture and Forestry Sciences，Shijiazhuang Hebei 050035，China |
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| Abstract: | For screening of safe and efficient herbicides to foxtail millet, four kinds of millet dicotyledon herbicides and 'Gucaoqing' in combination with sethoxydim were used to study their weed control effect and yield for sethoxydim-resistant millet variety Jigu 42． Herbicides under recommended dosage, 1.5 times recommended dosage and 2.0 times recommended dosage were studied separately． "Gucaoqing + sethoxydim" was selected as the best herbicide combination． On this basis, further safety tests were carried out． Based on recommended dosage of Gucaoqing 1800 mL/hm2, different spraying concentrations of 1.0, 1.5, 2.0, 3.0, 4.0, and 5.0 times were set, namely 1800, 2700, 3600, 5400, 7200 and 9000 mL/hm2． After spraying herbicides, Jigu 42 could grow normally, and no obvious phytotoxicity was seen． Thirty days after treatment, height and fresh weight of sprayed plants within 9000 mL/hm2 were higher than blank control, and seedling height and fresh weight of plants within 3 times spraying dose（5400 mL/hm2）were higher than artificial weeding control． Plant height, ear length, and yield within 5 times spraying dose（9000 mL/hm2）were significantly different from blank control, but not significantly different from artificial weeding control． |
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| Keywords: | foxtail millet herbicide safety Jigu 42 |
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