【摘 要】
：
根据一九五一年度与各地区合作,交流并总结经验,结合试验研究,对棉红蜘蛛现阶段的防治,提出初步综合性的防治法,以供各地参考:(一)棉田卫生根据棉红蜘蛛发生规律及其为害习
论文部分内容阅读
根据一九五一年度与各地区合作,交流并总结经验,结合试验研究,对棉红蜘蛛现阶段的防治,提出初步综合性的防治法,以供各地参考:(一)棉田卫生根据棉红蜘蛛发生规律及其为害习性的观察,肯定棉田及其周围环境的卫生处理是防治该虫的有效措施之一。1.励行冬耕。从该虫越冬诸习性的观察,确定其
According to the 1951 cooperation with all regions, exchange and sum up experience, combined with experimental studies on the prevention and treatment of cotton spider mites at the present stage, put forward a preliminary comprehensive prevention and cure method for reference around: (a) cotton health according to cotton red Spiders and the occurrence of harmful habits of observation, affirming the cotton and its surrounding health treatment is one of the effective measures to control the insects. 1. Reward winter farming. Observe the habits of the pest over the winter to determine its
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.
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.
什幺是白尖谷子白发病俗名叫露心、槍扦、糠榖老。著者根据观察及群众的经验将病微分为三类:一类是叶斑类,是分生孢子传染的,比较最不重要,还能长很好的榖穗。一类是糠谷老
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.
中文重点推荐许巍今天-许巍2002-2008生活作品集没有一首新歌,没有一丝陌生,甚至不需要歌词,这是一张你我熟记于心的专辑。
Chinese key recommendation Xu Wei today - Xu
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.
水稻三化螟是水稻的一大害虫。为了消灭螟害,确保水稻丰收,近几年来,我们把推广黑光灯诱杀害虫作为防治水稻三化螟的一个重要环节来抓,取得了良好效果,受到贫下中农的欢迎。
少年时读《三国演义》,最佩服的人物是周瑜。1956年在北京长安大戏院看京剧《赤壁之战》,叶盛兰先生扮演的周瑜,一出场真是神采奕奕,满场生辉。我在台下暗自叫好,认为大丈夫