论文部分内容阅读
东部地区是我区重要的农业地区,也是提供商品粮较多的地区,粮食产量占自治区总产量的50%以上。但是干旱,特别是春旱对这个地区的农业生产威胁很大,搞好抗旱备耕,对保证春播质量,夺取农业丰收,是非常重要的。这个地区绝大部分土壤有机质含量较低,保水性能差,冬春降水少,从十一月到翌年四月,降水量还不到全年的10%,春旱几乎年年发生。去年昭盟大部分地区春旱持续到7月,有的土地甚至因旱绝
The eastern region is an important agricultural area in our region and also provides more food commodities. The output of grain accounts for over 50% of the total output of the autonomous region. However, the drought, especially the spring drought, poses a great threat to the agricultural production in this region. It is very important to improve the quality of spring sowing and to seize the agricultural harvest. The vast majority of soil organic matter content in this area is poor, poor water retention, less precipitation in winter and spring, from November to April the following year, the precipitation is less than 10% of the year, spring drought occurs almost annually. Spring last year, most areas of spring drought continued until July, and even some of the land due to drought