What are the key technical points for growing watermelons in open fields

  With the improvement of modern cultivation techniques, watermelons have basically become a product of greenhouses, but we should know that even though greenhouse-grown watermelons have many advantages, open-field watermelons still exist for various reasons. Open-field watermelons will encounter all kinds of problems, such as pest and disease problems, weather problems, and so on. Today the editor will briefly explain the cultivation techniques for open-field watermelons.