MySheen

Protection against Frost injury of Pear trees in early Spring

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, 1. Prevent frost 1. Spray salt water 10-20% salt water before the arrival of night frost, which can not only increase the concentration of somatic sap, reduce the freezing point, but also increase air humidity. Water does not condense as expected to release latent heat and avoid freezing damage. 2. Spraying 0.1-0.2% green vegetable solution in early spring to inhibit germination and postpone flowering.

1. Prevent frost 1. Spray salt water 10-20% brine before the arrival of night frost, which can not only increase the concentration of somatic sap, reduce the freezing point, but also increase air humidity. Water does not condense as expected to release latent heat and avoid freezing damage. 2. Spraying hormone 0.1-0.2% green vegetable solution in early spring to inhibit sprouting and postpone flowering and avoid frost injury. 3, whitening, whitening early spring with 7-10% lime solution white trunk, main branches, and spray white tree crown, can delay germination and flowering. Second, nursing frozen pear trees should strengthen fertilizer and water management. After applying rotten human feces and urine or available nitrogen fertilizer, 0.2% urea and potassium dihydrogen phosphate were sprayed on the leaves to promote the rapid restoration of tree potential. If the flower is frozen, 50PPM gibberellin can be sprayed to increase the fruit setting rate, pay attention to the prevention and control of diseases and insect pests, protect the leaves, and pollinate the unfrozen flowers in time.

 
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