经过比较分析，民勤地区的平均温度、积温、日照等气象条件适宜种植甜高粱。种植时间宜从每年5月上旬开始，出苗时间要推后到每年的晚霜冻出现。民勤地区早霜冻出现时间较晚，平均无霜期达到153 d，因此不会影响到甜高粱的成熟收割。民勤地处干旱荒漠地区，降水量远不能满足甜高粱生长需水要求，因此种植甜高粱必须采取覆膜种植和浇水灌溉等措施。

According to analysis of the statistics of the average temperature， accumulated temperature， sunshine， precipitation and some other meteorological elements， comparing with the index range of meteorological conditions， it is suitable to plant Sweet Sorghum in Minqin district. The sweet sorghum can be planted in early May， seedling emergence time will be pushed back to the late frost occurred every year. Due to the early frost occurring late and the 153 days average frost-free period， the maturation and harvest of Sweet Sorghum can't be affected. Minqin is located in arid desert area， the precipitation cannot meet water requirement of Sweet Sorghum growth， and therefore mulching planting and watering irrigation measures must be taken to plant Sweet Sorghum .

S514；S161

中央财政“三农”服务基金