2. Seedling management: the seedlings should be put on the shelves in time, watered and fertilized in time to ensure adequate water and fertilizer, and pay attention to the collocation of elements. It is necessary to spray a new high-fat film in time to preserve moisture and fertilizer and promote seedling growth. When the seedlings grow to a certain extent, the small branches at the base of the main vine and the old leaves on the main vine should be removed in time. The flower buds are coated with Wang Cuihua No.2, which can promote the differentiation of branches and inflorescences and balance the years. At the beginning of inflorescence, Zhuangsuiling should be sprayed in time to promote the reasonable proportion of male and female inflorescences, develop healthily and improve the quality of finished flowers.
3. Pest control: The pests and diseases of hops mainly include nodule disease, downy mildew, sugar juice disease, red spider, hop caterpillar and so on. According to the requirements of plant protection, relevant chemicals should be applied in time to prevent and control diseases and insect pests before the occurrence period, and a new high-fat film should be sprayed to enhance the prevention and control effect. Before overwintering, the rotten roots, diseased roots and diseased branches of plants should be trimmed, and the aged bark should be removed. The cut of scissors should be coated with calluses antiseptic film, and the tree should be coated with tree protectant to prevent the infection of pests and diseases. It is necessary to treat the soil without pests and diseases, turn over the soil to brighten the water, spray new high-fat film to keep cold, keep warm and moisturize, and winter safely.