最近一段时间,有很多农民手拿带病的麦苗向笔者询问有关小麦管理的问题。据农民反映,眼下已进入小麦返青季节,但今年麦苗大面积发生发黄现象,有些麦田还出现小片或零星死苗、断垄现象。据分析,导致小麦苗大面积发黄的原因在于春节过后一直没有有效降水,旱情严峻,麦田墒情不足。随着气温的日渐回升和持续的干旱少雨,导致当前 Recently, many peasants took the sick wheat seedlings to ask the author about wheat management. According to the peasants, the wheat rejuvenation season has now entered the season. However, this year, yellowing occurs on a large area of ​​wheat seedlings and some small pieces or sporadic dead seedlings occur on some wheat fields. According to the analysis, the reason for the large yellowing of wheat seedlings is that there is no effective precipitation after the Spring Festival, and the drought is severe with insufficient moisture content in the wheat fields. With the gradual recovery of the temperature and continuous drought, leading to the current