Cracked vines are physiological diseases caused by drastic changes in temperature or fertilizer, which are more common in production. In severe cases, guava vines stop growing, fruits wilting, and even whole plants die. Its prevention and control methods are as follows:
Strengthen cultivation management
Reasonably choose the best place to choose high-river, well-drained fertile sandy soil planted watermelon.
Strengthen the management of fertilizer and water using deep trench mulching mulching. Moisture management shall be based on the principle of maintaining an equilibrium supply and appropriate control. Irrigation methods shall adopt small gutter irrigation or drip irrigation and infiltrating irrigation to prevent flooding. The irrigation time should be best performed in the evening or at night, and avoid watering at high temperatures. Timely water proofing. Rational fertilization, dominated by organic fertilizer, reasonable mix of nitrogen, phosphorus and potassium fertilizers, appropriate control of nitrogen, phosphorus, and potassium, prompting melons to be robust and strengthen crack resistance.
Timely calcium supplement spraying 2-3 times 0.3% calcium nitrate solution, can enhance the cell wall thickness, promote tissue hardness and strength increase, enhance the melon vine's crack resistance.
Pharmacy protection should be promptly adopted for the protection of cracked vines. Good Lectra 3 grams can be used to dilute 5 kilograms of water, with a brush to crack the cracked place; or use the disease to remove 10 kilograms of water 5 kilograms of cracked mane wounds. Do not spread should be promptly sprayed with broad-spectrum protective fungicides for protection, the agent optional supplies Run 800 times fluid, 800 times fluid, DuPont eBay 800 times fluid and so on.
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