句容市水稻田杂草种类及群落特点调查研究

采用倒置的"W"9点取样法对句容市边城镇、后白镇、华阳镇水稻田杂草种类进行了调查研究,结果表明:水稻田杂草共有13科、34种,禾本科杂草13种,莎草科杂草4种,阔叶杂草18种。其中,优势杂草种群为野荸荠、鸭舌草、节节菜、碎米莎草,3个乡镇的主要优势杂草种群稍有差异。     

优质萝卜主要病虫害的发生与防治

介绍优质萝卜主要病虫害的发生特点及防治方法,包括病毒病、霜霉病、软腐病、黑斑病、菜粉蝶、菜蛾、菜蚜、小地老虎等,以促进萝卜产业向高产、高效、优质方向发展。     

浅谈新晃县狂犬病发生的原因及对策

由于狂犬病传播迅速,危害性大,属于人畜共患病。随着经济的发展和生活水平的提高,城市和农村的养犬数和各种品种的犬在不断增加,给我县狂犬病的防控工作带来难度,防控也变的越来越严重。人畜一旦感染狂犬病,死亡率是百分之百。近年来,各种动物传染病、人畜共患病在不断转型、变异,不断发生和蔓延,被犬咬伤事件时而偶尔发生,狂犬病的危害直接影响着人畜的健康和生命安全,也给我县经济发展和社会稳定造成了一定的不利影响。     

2014年广德县水稻二化螟发生情况和原因分析

介绍了2014年广德县水稻二化螟在一季中籼稻上的发生情况,分析了本年度二化螟轻发的原因。为防治水稻二化螟提供参考。     

循化县核桃主要病虫害防治技术

介绍循化县核桃主要病虫害的类别及发生症状,并从农业防治、物理防治、生物防治、化学防治等方面提出相应的防治技术,以为当地核桃病虫害的防治提供参考。     

江苏省泰州市姜堰区稻田杂草发生特点及防控技术

系统调查了2009-2013年姜堰区稻田杂草发生情况，收集2000-2008年稻田杂草相关历史资料，分析稻田杂草发生特点，包括杂草种类繁多、旱生杂草逐渐成为优势种群、麦田杂草延后危害水稻等，并提出规范化学防除、选准除草剂、延缓杂草抗（耐）药性产生等防控措施。     

Bioinformatics Analysis of Bone Morphogenetic Protein 4 (BMP4) of Sheep

The assay was aimed to explore the biological characteristics of bone morphogenetic protein 4 (BMP4) of sheep,NCBI,DNAMAN DNAStar,TMHMM Server v.2.0,PsortⅡ,SignalP various bioinformatical softwares were used to speculate the physical and chemical properties,hydrophobic property,phosphorylation site,conservative structure domain,protein secondary structure of BMP4 protein.Also,the three-dimensional structure was forecasted with the SWISS-MODEL Workspace software.The results indicated that the BMP4 of sheep had high homologies with the BMP4 of various species.The encoded protein was a hydrophilic protein which was unstable.There was no transmembrane regions and it was likely to be located in the nucleus.What was more,there was signal peptide and eighteen phosphorylation sites.Through the forecast of functional domains,the protein had two functional domains,including the transforming growth factor-beta (TGF-beta) superfamily and TGF-beta propeptide superfamily.The result was consistent with the function of BMP4 gene family,it also demonstrated that BMP4 was a growth factor and it had the function of signal transduction.The amino acid homology between the predicted 3D structure of protein and template 3bmp.1.A was 88.29%.The bioinformatics analysis of BMP4 gene could provide reference for the further study in practice.     

玉米病虫害发病原因及防治方法

玉米在生长过程中会出现不同类型的病虫害，并且发病原因和规律不同。文章主要从病虫害的发生特点进行探索，分析了玉米生长过程中常见的病虫害以及综合防治技术，以期为玉米种植提供参考。     

甘薯黑斑病的发病规律及综合防治技术要领

甘薯黑斑病是甘薯生产上一种重要病害,发生普遍,我国各甘薯产区均有发生。甘薯黑斑病在甘薯整个生育期和贮藏期都可发生,主要危害薯苗和薯块。薯苗受害,多在茎基部白色部分产生黑色圆形或近椭圆形的病斑,病斑稍凹陷。     

39.8%五氟·丁草胺SE(稻悠)防除机插秧稻田杂草田间药效试验

为了解39.8%五氟·丁草胺SE(稻悠)对水稻机插秧稻田杂草的防除效果,特开展了田间药效试验。结果表明,该药剂对机插秧稻杂草具有很好的防效,制剂用量1875m L/hm~2和2250m L/hm~230d后的防效分别为95.37%和97.01%,且对水稻生产安全,可以推广应用。