爱可防治黄瓜靶斑病效果好

来源 :科技致富向导 | 被引量 : 0次 | 上传用户:htagsll
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
黄瓜靶斑病是由黄瓜靶斑病菌引起的真菌性病害,温暖、高湿有利于发病。近年来在温室、露地都有发生,且不断加重,成为黄瓜主要病害之一。其症状与霜霉病和细菌性角斑病极易混淆。黄 Cucumber target spot disease is a fungal disease caused by Cucumber target spot bacteria, warm, high humidity is conducive to the pathogenesis. In recent years in the greenhouse, open have occurred, and continue to increase, becoming one of the main cucumber diseases. Its symptoms are easily confused with downy mildew and bacterial angular leaf spot. yellow
其他文献
土壤选择选择富含有机质、土质疏松、排水良好和保水保肥能力强的肥沃深厚砂质壤土。地下水位高,排水不良的潮湿土壤和耕层浅的黏重土壤都不利于茄子的生长发育。在中性和微
  Objective Efficiency as a network measure was first introduced to express the capacity of networks to facilitate information exchange.The efficiency with wh
会议
素描是很有个性的绘画形式。作为基础训练正确认识这种形式,提高造型意识和认识形体结构的主动性是重要的。造型意识是一种思维方法,是一种认识自然结构、自然物象产生表现欲
建设省内二级干线光缆网,应从安全和经济出发选择建地下网,视公路环境建直埋或管道光缆线路;光缆的纤芯应考虑近、远期业务需求,一般在12芯以上;光缆选型也应从长远考虑,选用由G.652和G.653光纤
  Objective The betweenness centrality as a measure was first introduced to evaluate the role or the position of nodes in the network.It measures the probabil
会议
  Objective Near-infrared spectroscopy (NIRS) has been increasingly employed in psychiatric clinical practice to aid diagnosis of major depressive disorder (M
会议
  Objective To detect the contingent negative variation(CNV) in first episode deficit and non-deficit schizophrenia and the relationship between CNV and clini
会议
磁头是收录机上的一种换能元件,是用来进行电、磁信号之间的互相转换。磁头的性能对收录机的录放音效果有举足轻重的影响。 Head is a transposer on the recording elemen
  Objective Accumulating evidence from human genetic and animal model studies implicates the pituitary adenylate cyclase-activating polypeptide (PACAP) signal
会议
会议