【摘 要】
：
大搞土农藥,它兼具了种类多,来源易,制作方便,成本低等特点,对某些虫害防治效能显著,保証了生产,应广泛推广。各种土农藥所含的成分不同对于不同种类之昆虫杀伤力也有差別,
论文部分内容阅读
大搞土农藥,它兼具了种类多,来源易,制作方便,成本低等特点,对某些虫害防治效能显著,保証了生产,应广泛推广。各种土农藥所含的成分不同对于不同种类之昆虫杀伤力也有差別,就是对于同一种昆虫,其杀伤力也会受到地区差異之影响,为了明确适用于茶园治虫之土农藥种类及其藥效,为大田防治提
Engaged in soil pesticides, which combines both the types and sources of easy, easy production, low cost, the effectiveness of some pest control significantly, to ensure that the production should be widely promoted. Different ingredients contained in various pesticides for different types of insects are also different, that is, for the same kind of insects, their lethality will be affected by the regional differences in order to clear the pest control tea plant species and their pesticides Effective for the prevention and treatment of the field
其他文献
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
最近魏晨同学因为芒果台(湖南卫视)热播的新剧《一起来看流星雨》而再次火了起来,而他之前参加“快男”比赛结束后录制的中国风单曲也就自然而然地被飞碟们挖了出来,送上了这
攀枝花市第五人民医院位于攀枝花市政治、经济、文化中心炳草岗 ,是一所以中西医结合为主的集医疗、教学、科研、预防、保健、康复为一体的综合性人民医院 ,承担着攀枝花大学
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
2005年日本书店销售继续负增长2005年8月,东贩出版的《书店经营实态(2005年版)》表明,日本约有75%的书店销售额负增长,毛利润与成本比率达到100.9%,连续6年超过100%。书店卖
姜德明《〈不惊人集〉的下落》一文的末尾写道:“在徐懋庸的旧著中,当以《不惊人集》最稀见……出版这本书的上海千秋出版社则不见史载,好像也没有出版过什么书。”姜先生这
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.