1、 Increase illumination

Cucumber can not grow without sufficient light. The daily illumination time shall not be less than 8 hours, which can store a large amount of nutrients for the plant and help the yellow melon seedlings become thicker. If the greenhouse planting cannot reach this mark, fill light can be used to provide light

2、 Lower the temperature

Although cucumber can grow under high temperature, low temperature can inhibit its respiration and effectively store nutrients. The temperature during the day can be controlled at about 32 ℃, but it should be reduced to 15-18 ℃ at night and maintained at 10-12 ℃ in the middle of the night, which is conducive to its expansion

3、 Increase ground temperature

Appropriate ground temperature can make the root system of cucumber more developed, which is conducive to the absorption of water and nutrients, and can also make yellow melon seedlings thicker. The suitable ground temperature is about 18-24 ℃. If it is lower than 8 ℃, the root system will no longer grow. Higher than 32 ℃ also inhibited the development of roots

4、 Proper fertilization

If the soil nutrient is insufficient, the yellow melon seedlings cannot grow thick. Timely fertilization and nutrition are needed. Nitrogen, phosphorus and potassium compound fertilizer can be used to irrigate the root. Or use potassium dihydrogen phosphate as leaf fertilizer and spray it on the leaves of the plant. Once every 7-10 days, two to three times can improve the situation