1、 Soil discomfort

Reason: watercress green breeding needs to provide appropriate soil conditions, which is the basis of growth and development. If the soil is not changed for a long time, the growing soil will be hardened and airtight, the root system will be difficult to breathe, and finally suffocate the rotten roots, causing the leaves to fall

Solution: at the beginning of planting in the basin, it is necessary to provide loose and breathable soil. After breeding for one or two years, it is necessary to replace the basin soil in time and select new loose soil to maintain growth

2、 The temperature is too low

Reason: the temperature itself is low in winter. If the thermal insulation measures are not taken, the temperature below 10 ℃ in winter will cause the plant to be frozen and the leaves to fall

Solution: keep the temperature above 10 ℃ in winter and keep warm. The temperature should not be too low. Ventilation should be appropriate at noon

3、 Excessive moisture

Reason: the growth of watercress green needs proper watering. Once too much watering and excessive ponding will lead to wet soil and rotten roots and leaves

Solution: Water by observing the condition of the soil, wait until the surface is dry, and then pour it thoroughly at one time. When excessive ponding is found, it is necessary to promote the discharge of excess water

4、 Pest problems

Reason: Douban green is less likely to be infected with diseases and pests, but once infected, it will cause leaf loss

Solution: remove the diseased leaves in time, strengthen ventilation, and spray medicine in time