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一、冻害预防措施1.浇水。浇水可以平抑地温,增加土壤热容量,有很好的防御低温霜冻的作用。一般浇水后10天内有效。但对温度下降到0℃以下的霜冻天气,霜冻当天不要浇水,以免加重冻害。2.喷水。喷水可以提高麦田的空气湿度,当水气结冰时可以释放出大量的热量,有一定的防治小麦冻害的作用。另外在喷水时,人的走动可搅动麦田空气,增加热量交换量,也能起到较好地预防低温冻害的作用。3.熏烟。当低温来临时,进行柴草熏烟
A frost damage prevention measures 1. Watering. Watering can be suppressed temperature, increase soil heat capacity, a good defense against the role of frost. Generally effective within 10 days after watering. However, the temperature dropped to 0 ℃ below the frost weather, frost the same day do not water, so as not to aggravate the frost damage. Spray water. Water spray can improve the air humidity in wheat field, when the water gas can release a lot of heat, there is a certain degree of prevention and control of wheat frost damage. In addition, the water spray, the people move can agitate wheat air, increase the amount of heat exchange, but also can play a better role in preventing low temperature frost damage. 3. Fumigation. When the cold comes, firewood is smoked