论文部分内容阅读
我县部分地区春夏季常遭受冰雹灾害,特别是6月初遭受了罕见雹灾,给正在出苗的玉米、蔬菜、果树等农作物造成毁灭性的破坏。一、主要表现如下1、砸伤作物。由于冰雹的机械作用力,苗期作物的叶片破损,受损叶片干枯死亡,幼苗心叶受伤,展开受阻,影响作物的生长。2、土壤板结。由于农作物刚刚处在出苗期,田间土壤裸露较多,暴雨和冰雹的冲刷和雹砸,会夯实松散的土壤造成土壤表土板结,不利于作物根系生长。冰雹天气过后,天气放晴,表层土
In some parts of the county, hail calamities are commonly encountered in spring and summer, and in particular, a rare hailstorm in early June has caused devastating damage to the emerging crops of corn, vegetables and fruit trees. First, the main performance is as follows 1, smashed crops. Due to the mechanical force of hail, the leaves of seedlings at seedling stage are damaged, the damaged leaves are dead and dry, the heart and leaves of seedling are injured, which hinders the growth of crops. 2, soil compaction. As crops are just emerging in the seedling stage, there is more bare soil in the field. The erosion and hailstorms caused by rainstorms and hail will consolidate the loose soil and cause soil topsoil compaction, which is not conducive to crop root growth. After the hail weather, the weather cleared, topsoil