我旗位于辽宁省西北部,海拔较高,无霜期仅110天左右。历年来,除了受旱、风、虫、雹、水等自然灾害外,还常受早霜危害。但是,长胜公社马架子、小河沿公社小河沿等大队,由于经常注意防霜,一直没受霜害。敖汉旗“自然无霜期”一般从5月15日起至8月30日止,共107天。每年8月下旬都有一次降温,往往出现早霜。但早霜后,气温还能回升12～26天,能满足作物灌浆成熟的需要。马架子和小河沿这两个大队,每年都采取积极措施,预防第一次早霜,以延长作物的生育日数。他们采取的主要措施是,烟雾防霜和灌水防霜相结合,以灌水防霜为主。处暑前后,大、小队干部和技术 My flag is located in the northwest of Liaoning Province, higher elevation, frost-free period of only 110 days. Over the years, apart from natural disasters such as drought, wind, insects, hail and water, they are also often endangered by early frost. However, Changsheng commune horse shelf, Creek along the Creek along the commune and other brigade, due to regular attention to frost, has not been frost. Ao Han flag “natural frost-free period” generally from May 15 to August 30 only, a total of 107 days. Every year in late August there is a cooling, often appear early frost. But after the early frost, the temperature can rise 12 to 26 days, to meet the needs of crop filling mature. Both the horse racks and the Little Rivers along these two battalions take active measures every year to prevent the first frost and to prolong the days of childbirth. The main measures they take are combination of anti-frost and anti-frost irrigation and anti-frost irrigation. Before and after summer heat, large and small team cadres and technology