Are tree grapes afraid of freezing in northern winter?

Maybe. 1. Dilute application of thin fertilizer: from the germination stage to the end of August, topdressing should be done once a month, and 5 kg of human and animal manure, 50 g of water fertilizer and nitrogen fertilizer should be applied to each plant each time. If there is little rain in July and August, cover the grape plants with weeds and water, preferably watering them at night or in the morning.

Second, vertical support and summer scissors: grapes need support to achieve high yield. In the year of new planting, if it is impossible to set a large bracket, a small bracket should also be set to tie the new shoots. When the new bud grows to about 20cm, you can choose to leave a stout new bud and erase the remaining buds. Under the condition of strengthening fertilizer and water management, the annual growth of grape new shoots can reach more than 4 m. In order to promote secondary branches, secondary branches should be used for shaping, and the new shoots should be cored when they reach the height of the shelf surface, and the secondary branches should be used as the backbone branches when pruning in winter. Early plant formation.

Third, keep the soil loose in the garden: due to the increase in fertilization times and the rain, the soil in the garden is easy to harden, which is not conducive to plant growth. If the soil in the garden can be kept loose, the yield can be increased by more than 15%~25% compared with general extensive management, and the occurrence of pests and diseases can be reduced.