论文部分内容阅读
本文分析研究旱涝灾害对农业的影响,确定旱涝灾害标准,提出有效的防御措施,对降低气象灾害损失具有重要意义。降水量与粮食产量密切相关,玉米在拔节孕穗期遇到严重干旱,减产明显。建议遇到“卡脖旱”时,应采取有效的抗旱措施,积极浇地。干旱少雨年不易密植,多雨年适当密植可增加粮食产量。降水过多,可冲毁农田,形成农田渍涝,所以田边要挖排水沟,做好田间排水防涝工作。
This paper analyzes the impact of droughts and floods on agriculture, determines the standards of droughts and floods and puts forward effective defensive measures, which are of great significance to reduce the loss of meteorological disasters. Precipitation and grain yield are closely related to the corn in the jointing booting stage encountered a serious drought, significant reduction. Proposed to encounter “card neck dry ”, should take effective measures to combat drought, actively irrigating. Drought and drought is not easy to close planting, rainy year appropriate planting can increase grain yield. Precipitation too much, can be washed away farmland, the formation of farmland waterlogging, so Tanabe dig drainage ditches, flood protection work well in the field.