The newly grafted fruit tree seedling due to wound healing, weak resilience, and winter susceptible to freezing damage, should take the following protection measures: timely pouring frozen water in the soil before freezing, pouring a frozen water along the ditch, to fill sufficient irrigation to meet Grafting seedlings need water during winter. Before rooting, the roots and stems were crushed in the rhizome to 30 cm thick to prevent freezing of the roots. Set windbreaks According to the topography of the nursery, a windbreak is set with rice straw, sorghum stalks, and corn stalks every 2-3 seedbeds before the soil is frozen, or 80 cm high earthworms are piled up on the northwest side of the nursery. The seedlings were dried and coated with 5 kg of quick lime and 0.5 kg of salt. After the mixture was mixed with water, 0.1 kg of vegetable oil was added and formulated into a whitening agent brush on the seedlings. Package straw antifreeze if the grafted seedlings are larger, use straw on the seedlings; if the grafted seedlings are too small, first pour water once, and then cover the seedlings with straw, and piling the stakes around the seedbeds to pick up the ropes. Cover the covered straw. The thickness of rice straw should be more than 5 cm.

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