台风对棉花的影响及其抢救措施

来源 :农业科技通讯 | 被引量 : 0次 | 上传用户:kinter1113
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
连云港市属于台风常年易发地区。1990~1993年8月下旬至9月上旬遭15号、16号强台风的影响,并拌随着暴雨,棉花损失严重。为了探索台风对棉花的影响及其抢救措施,进行了多点调查和系统观察。一、台风对棉花的影响(一)棉花植株大量倒伏台风过境后,全市40万亩棉花,80%左右 Lianyungang City is a typhoon-prone area. From late 1990 to late August 1993 to early September, it was affected by the strong typhoon Nos. 15 and 16, and with heavy rains, the cotton suffered serious losses. In order to explore the impact of typhoon on cotton and its rescue measures, conducted a number of investigations and systematic observation. First, the impact of typhoons on cotton (A) a large number of cotton plants after the typhoon transit over the city, 400000 acres of cotton, about 80%
其他文献
In this paper, we simulate the exposure factor by a simple model of a free-air ionization chamber with the Monte Carlo programme Geant4. Special emphasis is pla
多少人梦想,庭院藤架绿荫下品茗小憩,池塘绿草碧波中赏荷养性。在其中。生态水景让这样的梦想离我们越来越近了。朋友老袁是基建行家,我熟悉水生植物,我俩取长补短,共同打造
中国农科院作物所小麦育种专家石社民等经过多年努力,首次培育出集矮秆、大穗、大粒于一身的冬小麦新品种中麦9号。经过三年的试验示范,证明该品种是一个可跨北部冬麦区和黄
对祁连山敦德冰心总微粒含量、粒径分布以及总微粒含量、粗微粒含量与沙尘暴的关系进行了分析,结果表明,微粒主要来源于亚洲粉尘发源地和区域性源地,属于典型的陆源微粒.微粒
This paper focuses on the synchronisation between fractional-order and integer-order chaotic systems.Based on Lyapunov stability theory and numerical differenti