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新型除草剂单嘧磺隆防除夏玉米田间杂草试验 总被引:2,自引:1,他引:1
10%单嘧磺隆是防除小麦、谷子等作物田间杂草的新型除草剂.为明确其在玉米田间使用的除草效果,2007年进行试验.结果表明:10%单嘧磺隆可湿性粉剂在夏玉米播后苗前进行土壤喷雾,对夏玉米田间阔叶杂草具有良好的防除效果,使用剂量以400 g/hm2(制剂含量)为宜.在禾本科杂草发生严重的地块,应和地乐胺等除草剂复配使用. 相似文献
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10%单嘧磺隆WP防除春小麦田杂草 总被引:2,自引:1,他引:1
在青海不同生态区春小麦田间试验,10%单嘧磺隆WP300g/hm^2对水450kg于小麦4叶~4叶1心期喷雾,海拔高度、土壤类型不同,麦田杂草优势种群各异,除草效果存在差异。以藜为优势种的小麦田,建议与2,4-滴丁酯混配使用。 相似文献
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日前从南开大学了解到,由该校创制开发的具有自主知识产权的新型除草剂单嘧磺隆可有效防治麦田阔叶杂草,对北方地区常见恶性杂草碱茅有特效。该项目已完成了工程化和产业化试验,并通过了天津市环保局的审批和国家级验收。该药剂已在农田推广使用35万亩,结果表明,每亩除草成本可降低50%。 相似文献
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吡嘧磺隆防除水稻田杂草试验 总被引:3,自引:0,他引:3
水稻田杂草种类很多,为在国产水田除草剂中筛选出与草克星效果相近,成本却明显降低的药剂,特进行此试验。1 材料与方法1-1 供试药剂10%吡嘧磺隆可湿性粉剂(沈阳化工研究院研制),10%草克星可湿性粉剂(日本日产化学工业株式会社提供);30%阿罗津乳油(德国艾格福公司提供)。1.2 处理设计设3个处理,小区面积50m2,重复4次,共12个小区随机排列。1.3 施药时间与方法水稻插秧后6天施药,毒土法,细土用量16kg/667m2。1.4 药效调查施药后15、30及60天调查杂草防除效果,用药后观察… 相似文献
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单取代磺酰脲类超高效创制除草剂--单嘧磺隆与单嘧磺酯 总被引:1,自引:0,他引:1
南开大学农药国家工程研究中心 《世界农药》2006,28(1):49-50
ALS 酶是植物体内所特有的一种靶酶,在温血动物中不存在。20世纪80年代初美国杜邦公司发现磺酰脲类 ALS 酶抑制剂以来,磺酰脲类超高效除草剂成为农药创制史上的一个里程碑。它的超低用 相似文献
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Ying Li Tetsuo Takano Shenkui Liu 《International journal of molecular sciences》2014,15(9):16469-16483
Puccinellia tenuiflora is a monocotyledonous halophyte that is able to survive in extreme saline soil environments at an alkaline pH range of 9–10. In this study, we transformed full-length cDNAs of P. tenuiflora into Saccharomyces cerevisiae by using the full-length cDNA over-expressing gene-hunting system to identify novel salt-tolerance genes. In all, 32 yeast clones overexpressing P. tenuiflora cDNA were obtained by screening under NaCl stress conditions; of these, 31 clones showed stronger tolerance to NaCl and were amplified using polymerase chain reaction (PCR) and sequenced. Four novel genes encoding proteins with unknown function were identified; these genes had no homology with genes from higher plants. Of the four isolated genes, two that encoded proteins with two transmembrane domains showed the strongest resistance to 1.3 M NaCl. RT-PCR and northern blot analysis of P. tenuiflora cultured cells confirmed the endogenous NaCl-induced expression of the two proteins. Both of the proteins conferred better tolerance in yeasts to high salt, alkaline and osmotic conditions, some heavy metals and H2O2 stress. Thus, we inferred that the two novel proteins might alleviate oxidative and other stresses in P. tenuiflora. 相似文献
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Juanjuan Yu Sixue Chen Tai Wang Guorong Sun Shaojun Dai 《International journal of molecular sciences》2013,14(1):1740-1762
Soil salt-alkalinization is a widespread environmental stress that limits crop growth and agricultural productivity. The influence of soil alkalization caused by Na2CO3 on plants is more severe than that of soil salinization. Plants have evolved some unique mechanisms to cope with alkali stress; however, the plant alkaline-responsive signaling and molecular pathways are still unknown. In the present study, Na2CO3 responsive characteristics in leaves from 50-day-old seedlings of halophyte Puccinellia tenuiflora were investigated using physiological and proteomic approaches. Comparative proteomics revealed 43 differentially expressed proteins in P. tenuiflora leaves in response to Na2CO3 treatment for seven days. These proteins were mainly involved in photosynthesis, stress and defense, carbohydrate/energy metabolism, protein metabolism, signaling, membrane and transport. By integrating the changes of photosynthesis, ion contents, and stress-related enzyme activities, some unique Na2CO3 responsive mechanisms have been discovered in P. tenuiflora. This study provides new molecular information toward improving the alkali tolerance of cereals. 相似文献
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5种除草剂对吉林省春小麦田杂草防除效果研究 总被引:1,自引:0,他引:1
为了考察5种除草剂对吉林省春小麦田杂草的防除效果,并评价其对小麦的安全性,采用茎叶喷雾、定期调查的方法进行田间药效试验。结果表明,春小麦4~6叶期,茎叶喷施40%唑草酮水分散粒剂24.0 g/hm2(有效成分用量,下同)、10%苯磺隆可湿性粉剂13.5 g/hm2、200 g/L氯氟吡氧乙酸乳油180.0 g/hm2,施药后30 d对阔叶杂草的综合防效分别为83.1%、84.7%、90.6%;茎叶喷施69 g/L精唑禾草灵水乳剂67.5 g/hm2、15%炔草酯可湿性粉剂45.0 g/hm2,施药后30 d对禾本科杂草的综合防效分别为90.7%、86.8%。5种药剂对春小麦生长较安全,与人工铲除杂草相比,增产0.31%~1.56%。 相似文献
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1995~1996年在稻茬免耕小麦田,进行了播前和播后药剂除草试验.结果表明,播前用41%草甘膦75ml/667m~2或20%百草枯100ml/667m~2防除杂草效果分别为96、94.1%.播后4天用10%甲黄隆4g/667m~2、10%甲黄隆4g/667m~2+25%异丙隆100g/667m~2.对总草株防效分别61.4、80.3%,明显优于50%丁草胺100ml/667m~2防效(44.2%).而在小麦苗2叶1心期用10%甲黄隆4g/667m~2、10%甲黄隆4g/667m~2+25%异丙隆100g/667m~2、10%甲·绿5g/667m~2、25%异丙隆250g/667m~2,对总草株防效分别达82.6、97.3、90.0、88.3%.且比播后土壤处理防效好,并对小麦较安全.示范推广应用中,将播前和播后药剂除草技术相结合,可有效控制稻茬免(少)耕小麦田草害. 相似文献