There are many reasons for cucumbers to turn into melons. 1. There are many melons in the fruit and the plant is weak. Each organ competes for more nutrients. There is insufficient nutrients. The plant itself adjusts itself and turns into a melon. 2. In continuous cloudy days and low light, photosynthesis is organic. There are few nutrients, coupled with low temperatures, the absorption capacity of the root system is affected, causing the plants to turn into melons due to hunger. 3 The temperature is too high, the temperature difference changes too little, and the respiratory consumption accumulates too much. The melon strips cannot supplement the photosynthetic nutrients and turn into melons. 4 A large amount of The application of helium fertilizer, excessive watering, resulting in leggy growth, and lack of water and fertilizer will cause melons to rot. 5. The concentration of carbon dioxide in the air is below 0.01, which is difficult to meet photosynthesis. It may be caused by insufficient ventilation, resulting in insufficient organic nutrients and causing melons to rot. . Necessary measures can be taken according to the situation.