Papaya leaf margin zoom office

Papaya leaf edge dry and develop in the reasons: mostly into the winter after the temperature is too low (minimum temperature below 10 °C), temperature difference caused by the physiological disease. Solution: (1) Increase the minimum temperature in the greenhouse (preferably 15°C or more, and ensure a certain degree of indoor air humidity (about 70%); (2) Cover the farmhouse fertilizer appropriately on the tree top and increase the soil of the tree roots. Temperature; (3) Spray 0.3% potassium dihydrogen phosphate on sunny days to enhance the tree's resistance.

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