防治茄子黄萎病法

来源 :河北农业 | 被引量 : 0次 | 上传用户:lxbyftk
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
近年来,茄子黄萎病在河间市均有不同程度的发生,造成大幅度减产,由于发病普遍,已构成障碍茄子生产的重要因素之一。 茄子感染黄萎病初期,叶片的小叶脉首先出现明脉,下部叶片开始发黄,并向上发展,同时基部和叶柄维管束的木质部变成褐色,植株生长发育受阻。根据笔者总结 In recent years, eggplant Verticillium wilt in Hejian have varying degrees of occurrence, resulting in a substantial cut, due to the prevalence has constituted an obstacle eggplant production one of the important factors. In the early stage of the infection of Verticillium wilt, the leaf veins of the leaves first appeared in the bright veins, the lower leaves began to yellow, and developed upward. At the same time, the xylem of the vascular bundles at the base and the petiole became brown, and the growth and development of the plants were blocked. According to the author’s summary
其他文献
目的:分析安全护理对老年慢阻肺患者呼吸功能与生活能力的影响.方法:抽选2018年5月-2020年3月于本院就诊的36例老年慢阻肺患者,信封法任意纳入参照组与干预组(n=18).参照组行
  A hybrid rainfall-runoff model that integrates artificial neural networks (ANNs) with Xinanjiang (XAJ) model was proposed in this study.We extracted the dig
会议
  Conceptual model is considered as one of the crucial and essential methods for scientific research on cold region hydrology.However, graphical conceptual mo
会议
一、选育过程 春雨1号是在莱西民间栽培的早熟桃中选育的一个极早熟桃新品种,父母本不详。经过民间高接繁育,现已有小面积栽培。笔者于1996年进行高接观察和嫁接繁育,表现性
  With the measured values of the water level and channel characteristics of the Yangtze River in Chongqing in flood season, one-dimensional hydraulic model w
会议
  The high degree of spatial variability of saturated hydraulic conductivity makes it necessary to obtain sufficient and reliable Ks for accurate flow and tra
会议
  In mid-latitudinal continental and island regions, different air masses origins and their interactions with complicated topography along their journey may r
会议
近年来,心血管疾病已逐渐成为全球医疗卫生保健和卫生资源的一个沉重负担.随着现代科技医学的不断进步及临床心血管疾病诊断和康复治疗的不断发展早已形成以心导管治疗技术为
期刊
一、概述当今电信市场的竟争愈演愈烈,随着企业不断发展,服务的不断延伸,服务质量巳经成为事关企业成败的一个重要的砝码,稳定一个老客户的重要性要远甚于拓展一个新客户。如