由于今春气候异常,今年小麦生育前期气温偏高,4月分出现了连续29℃高温,小麦生育期较常年普遍提早7～10天,在某种程度上造成了小麦本身的抗逆性降低,抗病能力差,而4月底到5月初我市大部分地区降水偏多,气温偏低,大部分县市降雨均在10次以上,最多的降雨13次,降雨量在40～89.4毫米,是常年同期的2～4倍。光照时间减少 Due to the anomalous climate in this spring, the temperature of early wheat growth in this year was relatively high. In April, a continuous high temperature of 29 ° C occurred. The growth period of wheat was 7 to 10 days earlier than usual, which resulted in the decrease of wheat stress resistance to some extent. Disease resistance is poor, and by the end of April to early May most of the city precipitation is too low, the temperature is low, most counties in the rainfall are more than 10 times, the highest rainfall of 13 times, rainfall of 40 ~ 89.4 mm, is 2 to 4 times the same period of perennial. Light time decreases