夏谷生育期间处于高温高湿的气候条件,容易形成头重脚轻,造成倒伏,影响产量。近年来,我们围绕着防倒的问题采取了些措施,收到了较好的效果,对促进我区的夏谷生产起了很大作用。1982年全区夏谷种植面积由1981年的15万亩增至34万亩,单产达到349斤,比历史最好水平的251斤增产98斤。据1983年深县在基本条件大体相同的地块调查,种夏玉米的平均亩产 Summer Valley during the high temperature and humidity in the climatic conditions, easy to form top-heavy, causing lodging, affecting the yield. In recent years, we have taken some measures around the problem of falling over and have received good results, which have played a significant role in promoting summer valley production in our region. In 1982, the planted area of ​​Summer Valley increased from 150,000 mu in 1981 to 340,000 mu, yielding 349 kg, an increase of 98 kg from 251 kg, the best in history. According to 1983, the basic conditions of deep in the same block survey, the average yield of summer maize