1, the light is too strong
Watermelon seedlings need enough light to promote their growth, but if the light is too strong, the plants will turn yellow easily. Therefore, when maintaining watermelon seedlings, it is best to let them have soft light and shade them in time when the light is too strong, so that watermelon seedlings can grow healthily.
2. Insufficient moisture
The growth of watermelon seedlings needs enough water. If it is not replenished in time in dry season, plants will turn yellow due to insufficient water. At this time, it is necessary to replenish water in time, keep the soil slightly moist, and pay attention not to have too much water, so as not to adversely affect its growth.
3. The temperature is uncomfortable
Watermelon seedlings turn yellow, which may also be caused by improper temperature. It likes to grow in a warm environment. Therefore, when cultivating watermelon seedlings, we should pay attention to the ambient temperature. When the temperature is too high, the plants should be cooled and ventilated in time, and when the temperature is too low, the temperature should be properly kept and controlled.
Maintenance and management of watermelon
1, rational fertilization
Watermelon has fat fruit, short growth time and high demand for nutrients. In the seedling stage of plants, decomposed human and animal feces and urine water should be applied once. When melon seedlings grow 7-9 true leaves, soil miscellaneous fertilizer should be applied and covered with Stuart after fertilization to prevent nutrient loss.
Step 2 plant grass on the border
After furrowing and fertilizing watermelon seedlings, a layer of weeds should be spread on the border to prevent vine clay in rainy season, and at the same time keep the soil loose, promote the healthy growth of watermelon seedlings and improve the fruit setting rate.
3. Tissue vines
When watermelon seedlings begin to fall, vines should be placed on one side of the border along the wind direction, and the distance between each vine should be equal to avoid overlapping. When lateral vines begin to grow at the base of watermelon seedlings, redundant and fragile lateral vines should be removed to reduce nutrient consumption.