除草剂

The results showed that the soil catalase and dehydrogenase activities, soil microbial biomass N and microbial biomass C were restrain somewhat by four acetanilide herbicides at the beginning of cultivation, but can recover soon.

研究表明，培养初期丁草胺、乙草胺、丙草胺和异丙甲草胺对土壤过氧化氢酶和脱氢酶活性、对土壤微生物量氮和微生物量碳有不同程度的抑制，但均能很快恢复，四种供试酰胺类除草剂对土壤生态的影响不大，除草剂之间也没有表现出显著差异；培养初期rac-异丙甲草胺和S-isomer高浓度处理均比常规用药量处理对土壤酶、土壤BN和Bc的影响大。

Upon the optimized Agrobacterum-mediated transformation systems mentioned above, the herbicide-resistant gene bar has proved to be successfully incorporated into genomes of the Cynodon dactylon after PCR assay of hpt gene and bar gene, GUS histochemical assay and hpt resistance evaluation.

经潮霉素抗性基因hpt和除草剂抗性基因bar的PCR分析、GUS组织化学染色和潮霉素抗性鉴定，证实除草剂抗性基因bar已成功整合到狗牙根基因组。

Benzoxazine compounds are one kind of highly active protoporhyrinogen oxidase inhibitors. These compounds can effectively control both monocotyledon weeds and dicotyledon weeds at lower dosage. The action mechanism is similar to p-nitro-o-substituted diphenylethers. They can result weeds albinism and decolorization, which are very important albinism herbicide.

苯并噁嗪类化合物是一类高活性的原卟啉原氧化酶抑制剂，低剂量可有效地防除禾本科与阔叶杂草，其作用机理和对硝基邻位取代的二苯醚类似，它们造成白化或脱色，是白化除草剂中较重要的种类，其活性远超过二苯醚除草剂，是目前化学农药研究领域的热点。

Our country is used in paddy, cornfield since 1956 2, fireweed of 4- drop prevent and kill off, herbicide application begins to start, herbicide of 90 time our country got rapidder development.

我国从1956年起在稻、麦田使用2，4-滴防除杂草，除草剂应用开始起步，90年代我国除草剂得到了较快的发展。

In order to select safe and effective herbicides, experiment was carried out to test some herbicides effect on large crabgrass and barnyardgrass at the stage of turfgrass gemination and establishment.

刘荣堂 ，韩烈保，韩烈刚为筛选出安全有效的除草剂，分播后萌前和成坪时期，在室内和田间试验条件下研究了几种除草剂对马唐和稗草的防效。

IT IS HIGHLY EFFECTIVE ON DEEP-ROOT WEEDS, ANNUAL AND BIENNIAL GRAMINACEOUS WEEDS AND CAN BE APPLIED FOR CORN, COTTON, SOIL BEAN, SUGARCANE, RUBBLE, AND FRUIT GARDEN, BESIDES IT ALSO CAN BE USED WIDELY FOR NON-PLANT FIELD SUCH AS RAILWAY, ROAD,AIRPORT,RIVER BANK AND SO ON.

草甘膦为内吸传导型广谱灭生性除草剂，由茎、叶吸收，是非选择性、短残效的芽后除草剂，对多年生深根杂草、一年生和二年生的禾本科杂草非常有效，可用于玉米、棉花、大豆、甘蔗、橡胶、果园中，还可广泛用于河塘堤坝、机场、铁路、公路沿线等非耕地除草。

Some new characteristics on the development of herbicide industry were introduced.

摘要综述了近20年来世界除草剂新品种的开发进展，并介绍了除草剂工业发展的一些新特点。

Herbicide target and mode of action were introduced in this paper, together with the classification of herbicides bytarget of action.

全面了解除草剂的作用靶标与作用模式，对指导正确的使用除草剂、抑制或延缓杂草抗性的产生以及抗性杂草的防除都有着重要的意义。

The study on infield weed detection using machine vision is significant to reduce herbicide dosage and environmental pollution by ...

利用机器视觉技术进行田间杂草识别方法的研究，对实现除草剂的变量喷洒，以减少除草剂的使用量、降低生态环境的污染具有重要意义。

Four new aerobic bacteria, which could degrade and mineralize atrazine and other s-triazine dericatives were isolated from the different locations impacted by herbicide spills.

本试验从不同的、曾被均三嗪类除草剂污染过的环境中分离到四株能降解CIET的细菌菌株，对它们的生理生化、分子生物学特性以及对均三嗪类除草剂的降解性作了系统研究；总结如下： 1。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了