1. Orchard irrigation. Before the fruit tree is germinated 2~3 times, the flowering period can be postponed for 2~3 days; after the fruit tree is germinated, the flowering period can be postponed for 3~5 days. If the intermittent water spray method of spraying for two minutes and stopping for two minutes before the low temperature frost sprays water onto the fruit trees, the flowering period can be postponed for more than 10 days.
2. Smoked. When the temperature drops to 0 °C at night, igniting the smoke in the orchard can increase the ambient temperature and effectively reduce the freezing damage. 4 to 6 cigarettes should be placed in each acre orchard.
3. The trunk is painted white. In the spring, the whitening of the fruit branches with whitening agent can effectively reduce the absorption of solar heat, delaying the germination and flowering of the fruit trees for 3 to 5 days.
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