The long sunshine hours and high temperature in summer are the strong growth period of seedlings. The key to ensure the quality of seedlings is to do a good job of seedling cultivation and management in summer. 1. After entering the season, the nursery should focus on drought and high-temperature work. Conditional nurseries should be used to infuse horse water and daily night irrigation to keep seedbeds moist and reduce surface temperatures. For the annual nursery, if there is no irrigation condition, it should be covered with grass, wolf clothing and other methods to cool and moisturize. 2. Summer is a period of vigorous growth of seedlings, so we must strengthen the management of fertilizers and waters. In July and August, the general nursery should top-up nitrogen fertilizer and compound fertilizer 2-3 times to promote the growth of seedlings. 3. To promptly clear the nursery weeds, to prevent weeds and seedlings from competing for water, win light, and strive for nutrients. In order to save the herbicides, weedicides can be selected based on the specific conditions of the nursery chemical herbicides. For nurseries with less weeds, artificial weeding can be used first, then (Gourd 24% EC 40 ml + water 30 liters)/mu spray bed; in large seedlings older than 2 years of unmanaged grassland, available 24% EC 20 ml + glyphosate 10% EC 650 ml + water 40 liters)/Mu spray bed, but care should be taken not to stick to seedling leaves. 4. To prevent and treat plant diseases and pests in a timely manner, especially in the nursery in summer, the disease should be detected early and early, so as to prevent it mainly. 5. For the seedlings grafted this spring, the buds on the rootstock should be erased promptly. Guang Yulan, Ledong intended to graft the seedlings such as magnolia, according to seedling growth, timely removal of nylon at the interface to facilitate the normal growth of seedlings.
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