Greenhouse vegetable frost damage remedies

Appropriate top-dressing vegetables can be sprayed with quick-release fertilizer after being frozen, which can promote the recovery of the plants. Reasonable use of fertilizer according to the characteristics of the crop's fertilizer requirements: The demand of NPK for fruits of melons and solanaceous vegetables is relatively balanced, and it is appropriate to use ternary compound fertilizer, spray-sprouting, photosynthetic fertilizer, etc.; leafy vegetables for nitrogen fertilizer More demand, should be sprayed 1% ~ 2% urea solution, such as the addition of an appropriate amount of gibberellin better; root vegetables more potassium, phosphorus demand, can be sprayed with 0.3% potassium dihydrogen phosphate or 1% Potassium sulfate solution. 7-10 days after spraying spray again.
Timely watering the groundwater immediately after the watering vegetables are frozen, and suppressing the temperature drop. Should not use the ground water. The amount of water to reach the plough layer is appropriate, avoid flood irrigation.

After scientifically ventilated vegetables are frozen, they cannot be heated in a closed greenhouse immediately to prevent the dehydration of frozen tissues. After the sun came out, the ventilation openings were appropriately opened. After a certain period of time, the ventilation openings were gradually reduced and closed, allowing the temperature of the shed to rise slowly, allowing the frozen tissues to fully absorb water and promote the revival of the cells.

Appropriate shading vegetables are subject to direct sunlight after being frozen. They are prone to dehydration and shrinkage. Shade can be provided in the shed or grass can be covered outside the shed. It is completely covered at high temperatures at noon and partially covered at other times. After the recovery of frozen tissue, gradually reduce the shade.

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[Storage Conditions]
Store below 30c in a dry place away from heat and direct sunlight.







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