It is too troublesome to cover the box, which will damage the young melon, the leaves and vines of the melon, and it is also very troublesome. Cover one by one and uncover one by one. It will also affect ventilation and lighting, and directly affect the growth of watermelon.
However, there is a knotted fishing net with thin eyes on the top of the greenhouse, which is ok. And it doesn't interfere with watermelon at all. Does not affect lighting and ventilation. It doesn't matter if there is no greenhouse. Just order a few piles around Gua Tian, but the net must be tightly stretched. Mesh should not be too fine, too fine will affect the melting of hail, and the shelf will be finished if it collapses!
This method came to me only after I saw this problem. I can't do anything else It's okay to be smart! Ha ha! I hope you can use it in practice and get good results.
This method may even be able to apply for a national patent!