无籽西瓜常有部分幼苗带种壳出土，种壳夹住子叶遮挡阳光，妨碍光合作用，影响幼苗生长，所以需要及时摘掉子叶上的种壳，俗称“摘帽”。在幼苗出土５０％～７０％时，在温暖晴天的上午，当苗床内外空气温度接近时逐渐揭开棚膜，迅速摘帽，摘帽后仍盖上棚膜保湿增温，使其继续 Seedless watermelon often seedling with shell excavated, the seed shell to cover the cotyledons to block the sun, hinder the photosynthesis, affecting seedling growth, so the need to promptly remove the cotyledons on the shell, commonly known as “Zhaimao.” When 50% ~ 70% of the seedlings are excavated, warm green sunny morning, when the air temperature inside and outside the seedbed gradually opened when the film gradually opened the hat, remove the cap is still covered with film moisturizing warming, to continue