除草剂药害新进展与解决方法

近年来除草剂2,4-滴类、烟嘧磺隆对当茬作物药害.二氯喹啉酸、烟嘧磺隆残留药害,2,4-滴丁酯、异哑草松等飘移药害比较突出,常与除草剂药害症状混淆的肥害、人工合成的植物生长调节剂药害,其他如杀菌剂、杀虫剂、栽培措施等应与除草剂加以区别,并应引起重视.解决方法是改进使用技术,限制长残留除草剂使用范围和用量,选用功能性植物营养剂缓解药害.     

除草剂药害症状、药害原因与安全方法

除草剂的防治对象是与作物很相近的杂草，任何作物对除草剂都不具有绝对的耐性或抗性，只有在特定的环境条件和正确的施药技术条件下，才能保证良好的除草效果和安全性。除草剂药害的早期诊断和除草剂药害的发生原因分析，是除草剂应用技术研究中的重要内容。只有研究药害、认识药害、把握药害，才能避免     

除草剂安全使用与药害鉴定技术

陶波主编韩玉军、滕春红、马红副主编本书在简述杂草发生、危害及除草剂药害发生情况与发展现状的基础上,详细介绍了各种农作物田杂草防除中除草剂的安全使用技术,重点阐述了除草剂药害种类及症状、除草剂药害产生原因、诊断及评估方法、药害的鉴定程序、除草剂药害的补救措施及解决方法等相关知识。内容科学实用,并附有大量高清原色彩图,易于读者掌握。本书适合从事除草剂生产、管理、使用等相关科技人员阅读,尤其适合广大种植专业户、基层农     

《除草剂安全使用与药害鉴定技术》

<正>陶波主编韩玉军、滕春红、马红副主编本书在简述杂草发生、危害及除草剂药害发生情况与发展现状的基础上,详细介绍了各种农作物田杂草防除中除草剂的安全使用技术,重点阐述了除草剂药害种类及症状、除草剂药害产生原因、诊断及评估方法、药害的鉴定程序、除草剂药害的补救措施及解决方法等相关知识。内容科学实用,并附有大量高清原色彩图,易于读者掌握。     

除草剂药害对胡麻生长的抑制作用及其缓解效应

[目的]探讨除草剂药害对胡麻生长发育的影响并研究植物生长调节剂对除草剂药害的缓解效应。[方法]通过田间试验,测定胡麻生物量及叶绿素SPAD值等生理指标,探讨4种除草剂在超剂量使用时对胡麻生长发育的影响,并研究植物生长调节剂对几种除草剂药害的缓解效应。[结果]4种除草剂在超剂量使用时均会对胡麻的生长发育造成不同程度的抑制,药害发生后喷施植物生长调节剂对几种除草剂药害的均有一定程度的缓解。[结论]药害发生后及时喷施植物生长调节剂可有效缓解几种除草剂对胡麻生长发育的抑制作用,使受害胡麻达到正常生长或接近正常生长水平。     

计算机辅助除草剂药害诊断专家系统(HIDES)

除草剂被选用于现代杂草管理系统,但是如果施用不当或接触了非指定靶标,往往造成药害。一旦除草剂用量超过作物承受上限,就会发生药害。药害通常是由于植物、除草剂和环境之间的相互作用造成的。药害的诊断非常重要但通常也很困难,特别是     

玉米几种常见除草剂的药害症状识别

正玉米田使用除草剂防除杂草,是一种省工、省力、省时的除草方法。但玉米田使用除草剂有比较严格的要求,特别是在对除草剂的选择和混用上,稍有疏忽就会造成严重的药害,甚至会带来改种的危险。现将玉米田常见的几种除草剂使用不当对玉米造成的药害症状介绍如下。烟嘧磺隆药害。笔者曾发现过量使用烟嘧磺隆,造成处于6~7叶期玉米全被杀死的典型药害实例。烟嘧磺隆属于磺酰脲类除草剂中的高效药剂,在玉米田使用不当易产生药害,使用时应严格按照     

除草剂药害症状的诊断

近几年来 ,随着除草剂的推广应用 ,除草剂药害发生频繁、在生产中造成了巨大的损失 ,严重影响着农作物的产量和品质 ,已经成为阻碍杂草化学防治中的重要因素。生产中应了解产生药害的原因、做好药害的早期诊断 ,并及时采取补救措施。只有认识药害、把握药害 ,才能避免药害、解除药害 ,实现真正意义上的除草剂科学应用。1　除草剂的药害症状除草剂能够诱导植物产生一系列组织解剖、生理与生物化学以及形态变化。组织解剖与生物化学反应是植物组织内部的变化 ,在田间无法查看与鉴别 ;个别生理变化的结果 ,如失绿、坏死在田间能够观察。与组织…     

除草剂安全剂对硫代氨基甲酸酯类除草剂代谢的影响

硫代氨基甲酸酯类除草剂(如丙草丹和丁草特)经播前混土处理可有效的控制杂草，但是，该类除草剂会对玉米产生药害。除草剂安全剂可以在不影响除草剂对靶标杂草活性的前提下有选择地保护作物免受除草剂的药害，增强作物对除草剂的耐受性。     

新书介绍

随着农药工业和农业技术的发展，我国应用除草剂的品种不断增多，应用除草剂的范围不断扩大，与杀虫剂、杀菌剂相比，除草剂对环境条件和应用技术的要求更高。若遇到气象条件不良或应用技术不当等，则除草剂的药害事故是较易发生的。除草剂的药害，既能导致作物组织结构和生理机能的变化，又能导致作物形态特征的变化。因此，通过对作物受害呈现的异常形态(即药害症状)进行鉴别，     

Microbubble generation and microbubble-aided transport process intensification—A state-of-the-art report

This article aims to provide a state-of-the-art assessment of the research work carried out so far in microbubble-aided transport processes. The different methods of microbubble generation and the properties of microbubble have been reported in this article. The different components that constitute the microbubble are also discussed. The characteristics of microbubble are pointed out. The measuring methods of zeta potential in microbubble system are described. This article provides an update of important research works in the microbubble technology. This article also reports the important future research scope and their significance in the microbubble flow system. For researchers, this article may be useful for further research in microbubble technology.     

我国苯甲酸钠生产应用及市场趋势

叙述了苯甲酸钠的国内生产及应用状况,重点叙述了作为防腐剂的应用情况,对其他几种新型防腐剂作了比较,并分析了苯甲酸钠的发展趋势。     

Comparison of the colorcurve and SCA-2541 colour order systems using the OSA-UCS model

An earlier article has compared the perceptual scaling of the Munsell, NCS, DIN, Coloroid, and OSA-UCS colour order systems. This article expands on the earlier article by presenting a comparison of the Colorcurve and SCA-2541 [Swiss Colour Atlas] colour order systems, again using the OSA- UCS system as a reference model. To enable direct comparison with the earlier article, the same varied but systematic sets of OSA- UCS cleavage planes were used in this new comparison. To enable comparison between these systems, and the Munsell, NCS, DIN, and Coloroid systems, thejndings are graphically presented in a format similar to that used in the earlier article. © 1994 John Wiley & Sons, Inc.     

离心机应用中的腐蚀问题

介绍了腐蚀现象在离心机设计和应用中容易忽视的一些问题,提出了几种腐蚀现象的影响及其危害,并从结构设计和其它防护方面进行了分析,以供相关人士探讨。     

Preparation and Evaluation of Some Investigated Natural and Acrylonitrile Rubber Vulcanizates for Physiotherapeutic Purposes

A trial was made to design and prepare rubber article that can be used to reactivate, strengthen, and reinforce the hand muscles and fingers which had suffered from trouble movement. The investigated rubber article was prepared from natural and acrylonitrile rubber formulations. These formulations were processed in the form of compounds which contain significant quantities of fillers such as Hisil, CaCO₃, and TiO₂. The rheological characteristics and physicochemical properties of the vulcanizates were determined according to standard tests. It was found that it is possible to prepare the designated rubber article for the desired purpose. The test results showed that the prepared rubber article had good chemical resistance against acid, alkali, and salt. This rubber also possessed high resistance to deterioration and deformation. The prepared article had an ability to retain its elastic property after the action of compressive forces at 70°C for 24 h. This property was confirmed by its application in commercial therapeutic hand-exercise article.     

楚国漆艺——漆的材料性

本文从生漆的科学属性出发,着重阐述战国时代的楚国漆艺。对于楚国漆器所表现出的纷繁的面貌,尝试进行了分期研究,根据已出土的大量实物,按照楚国国家的发展进程分为三个主要时期,并对漆器与青铜器、陶器在造型上的承袭关系,不同时期内漆器的制作工艺、造型特征和装饰纹样作出了分析、比较。本文还对中国漆器的发展如中国用漆的起源和"漆政"问题做出了探讨。     

炭黑废水的处理现状与发展

主要阐述了炭黑废水的产生,危害和几种处理方法以及炭黑处理新的发展趋势。回收的炭黑可以变废为宝,重新被利用。     

湿式气柜的设计

介绍冶金、石油、化工生产装置中湿式气柜的设计,供设计人员参考。     

Comparing different methods of analysing sewage sludge, dewatered sewage sludge and sewage sludge ash

The following article compares different ways of characterising sewage sludge. Against the background of sludge recycling in agriculture as well as treatment with subsequent phosphorus recovery in mind, the article starts by collating and evaluating the levels of phosphorus, heavy metals, chlorine and sulphur in sludge as reported in the literature. Sewage sludge from the sewage treatment plant at Kaditz in Dresden was analysed using standardised and adjusted methods, which produced different results. In the course of this analysis the results were produced by using elemental analysis, atomic absorption spectroscopy, X-ray fluorescence spectroscopy (X-RFA) and ion chromatography (IC). The second part of the article therefore seeks reasons for the differences in the findings and tries to give solution statements. The article closes by calculating transfer coefficients for selected parameters during the incineration process and solid-liquid separation and weighing up the analysis techniques compared. Basically this article will show significant differences in sludge composition and the effects on the specific elements by ashing or mechanical dewatering of the different sludges. An essential attention obtains the analysis by using the X-RFA.     

RETRACTION

Capturing cause and effect relationships based on distance correlation by Mehran Haghparast and Mahdi Aliyari Shoorehdeli. The above listed article, from AIChE Journal, https://doi.org/10.1002/aic.17104 , published online in Early View on October 24, 2020 in Wiley Online Library (http://wileyonlinelibrary.com), has been retracted by agreement between the journal's Editor-in-Chief, Michael P. Harold, the author, and Wiley Periodicals LLC. The retraction has been agreed because the article was not accepted for publication by the Journal and subsequently published in error as an Early View article. The editorial team of this journal takes full responsibility and apologizes for the technical error that resulted in this article appearing in Early View.