[1]王玉琦,朱昌华,夏凯,等.磷酸脲缓解锰离子拮抗草甘膦的除草功效[J].江苏农业学报,2016,(05):1029-1036.[doi:10.3969/j.issn.1000-4440.2016.05.012]
　WANG Yu-qi,ZHU Chang-hua,XIA Kai,et al.Alleviation effect of urea phosphate on antagonism of manganese against glyphosate[J].,2016,(05):1029-1036.[doi:10.3969/j.issn.1000-4440.2016.05.012]
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磷酸脲缓解锰离子拮抗草甘膦的除草功效()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2016年05期
页码:
1029-1036
栏目:
植物保护
出版日期:
2016-11-22

文章信息/Info

Title:
Alleviation effect of urea phosphate on antagonism of manganese against glyphosate
作者:
王玉琦; 朱昌华; 夏凯; 甘立军
南京农业大学生命科学学院，江苏南京210095
Author(s):
WANG Yu-qi; ZHU Chang-hua; XIA Kai; GAN Li-jun
College of Life Science,Nanjing Agricultural University,Nanjing 210095,China
关键词:
草甘膦; Mn2+; 磷酸脲; 拮抗
Keywords:
glyphosate; Mn2+; urea phosphate; antagonism
分类号:
Q945
DOI:
10.3969/j.issn.1000-4440.2016.05.012
文献标志码:
A
摘要:
随着抗草甘膦转基因作物种植面积的不断扩大，草甘膦已经成为世界上用量最大的除草剂之一。为了节约成本，人们通常将微肥和草甘膦混合喷施，但是当含有Mn2+的微肥（硫酸锰）与草甘膦混用时会显著降低草甘膦的除草功效，因此探索能够减轻或消除Mn2+对草甘膦拮抗效应的方法具有重要意义。本试验采用磷酸脲、草甘膦、硫酸锰三者的混合液喷施高羊茅，探索不同浓度（166 mg/L、500 mg/L、833 mg/L）的磷酸脲缓解Mn2+对草甘膦的拮抗作用。结果表明，在草甘膦和硫酸锰混合溶液中添加3种不同浓度的磷酸脲可以缓解甚至消除Mn2+对草甘膦的拮抗作用，与草甘膦、硫酸锰混合喷施处理组相比，磷酸脲和硫酸锰、草甘膦混合喷施降低高羊茅叶片的含水量和叶绿素含量，提高莽草酸和丙二醛（MDA）含量。磷酸脲浓度越高，三者混合喷施处理的除草效果越好，其中833 mg/L磷酸脲与硫酸锰、草甘膦混合喷施处理与单独喷施草甘膦处理的除草效果一样。单独喷施磷酸脲提高了高羊茅的株高和鲜质量。
Abstract:
With the acreage's enlargement of transgenic crop resistant to glyphosate，glyphosate have become one of the largest herbicides in dosages in the world. In order to save the cost of weeding and fertilizing, people usually mix micronutrient fertilizer and glyphosate spraying.But the mixture of glyphosate and manganese fertilizer sabotage weed control. Therefore, it is of great significance to reduce or eliminate the antagonistic effect of Mn2+ against glyphosate. In this experiment, the mixtures of urea phosphate, glyphosate and manganese sulfate were applied to ryegrass. The alleviated effect on the antagonism of manganese against glyphosate under different concentrations (166 mg/L, 500 mg/L and 833 mg/L) of urea phosphate (UP) was explored. The mixture of glyphosate and manganese sulfate added with all three concentrations of UP relieved and even eliminated the antagonism of Mn2+ against glyphosate. Compared to the mixture of glyphosate and manganese sulfate, the mixture of glyphosate, manganese sulfate and urea phosphate decreased the contents of water and chlorophyll, and increased the contents of shikimic acid and malondialdehyde. The higher the UP concentration, the better the efficacy of the mixture.

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　ZHANG Yu-chi,LIU Qi,XIANG Shi-gang,et al.Sensitivity difference of weeds in rice field to glyphosate and glufosinate[J].,2018,(05):1260.[doi:doi:10.3969/j.issn.1000-4440.2018.06.009]

备注/Memo

备注/Memo:
收稿日期：2016-02-21 作者简介：王玉琦(1990-)，男，山东聊城人，硕士研究生，主要从事植物激素生理和生物技术研究。(Tel)18761869560;(E-mail)805285255@qq.com 通讯作者：甘立军,(E-mail)ganlj@ njau.edu.cn
更新日期/Last Update: 2016-11-22