The main reason for the emergence of cucumber roots is: due to the temperature of the ground in cloudy days, the soil moisture content is high, and the air is not ventilated for a long period of time. The roots are deprived of oxygen and the roots are damaged. When the roots are present, the main roots are rotted brown. Failure to manage them in time can lead to death. Control measures: timely cultivating loose soil, raising the ground temperature and ventilation, reducing the humidity and soil moisture in the greenhouse. Modern Ceiling Light,Modern Ceiling Lamp,Apple Cover Ceiling Lamp,Apple Cover Ceiling Light Hangzhou Lingjun Technology Co.,Ltd , https://www.lingjunelectrical.com