大棚菜受冻补救有办法寒冬季节，气温较低，并且天气变化无常，稍有疏忽，棚菜极易受冻害。受冻害较轻的蔬菜可采取以下措施补救。１．灌水。棚内灌水能增加土壤热容量，抑制土温下降，稳定近地表层的大气温度，进而稳定棚温，使蔬菜的冻害得到缓解。二、施肥。棚菜受冻后... Greenhouse vegetable frost remedy a cold winter season, the temperature is low, and the weather is volatile, a little negligent, greenhouse vegetables vulnerable to frost damage. The cold damage of vegetables can take the following measures to remedy. 1. Irrigation. Shed irrigation can increase the soil heat capacity, inhibit the decline in soil temperature, stabilize the surface temperature near the atmosphere, and then stabilize the shed temperature, so that the freezing of vegetables to be alleviated. Second, fertilization. Shelter after freezing ...