Fruit trees prevent heat damage in time

At present, apple, pear, kiwi and other fruit trees are in a vigorous growth stage. It is the most critical period in the fruit tree's annual growth cycle. Young fruit continues to expand, flower buds begin to differentiate, roots are at the second peak of growth, and some diseases and pests are harmed. Increase. Sustained high-temperature weather will have a great negative impact on fruit trees. The majority of farmers should do a positive response.

High temperature and drought hazard

1. High temperature can easily cause atmospheric drying, increase crop water evaporation, reduce soil moisture, and appear drought.

2. The high temperature and drought make the stomata in the leaves of fruit trees not closed, which will inevitably aggravate the evaporation of water from leaves and leaves, directly affect the development of young fruit, leading to the occurrence of “physiological fruit drop”.

3. High temperature and drought will reduce the photosynthesis of fruit trees, increase the respiratory intensity of fruit trees, reduce the synthesis and accumulation of organic nutrients, and then affect the growth of young fruit and flower bud differentiation.

4. High-temperature drought often causes stems and fruits to "burn", aggravating the hazards of powdery mildew, leafhoppers, leaf miners and other pests.

Measures to alleviate high temperature and drought

1. Irrigation, water spray. Actively adopt ground digging or digging holes to carry out infiltration; in the early evening or early morning, water canopy can be used to supplement garden water, improve small climate in the garden, and ensure normal growth and development of fruit trees.

2. Spray 2% lime emulsion on the canopy, or increase the amount of lime when spraying Bordeaux multi-fluid; trunk white, reflective cooling, to prevent "day burn."

3. Check the bagged fruit, open, increase the vent hole, reduce the temperature inside the bag, ensure the growth and development of young fruit.

4. Use crop straws, weeds, green manure, etc. to cover the tree or shallow banyan tree trays to reduce ground temperature and reduce water evaporation.

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