Greenhouse Cucumbers against "crazy"
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temperature control. The suitable temperature for cucumber growth and development is 25°C-30°C. Over 30°C, cucumber plants will appear to be long-winded, causing "crazy growth." Therefore, the daytime temperature in the greenhouse should be controlled between 25°C and 30°C, and should not exceed 30°C. It is advisable to keep the temperature at 18°C ​​at night to reduce the respiration and increase the dry matter accumulation.
Inhibit humidity. Because of the hermeticity in the greenhouse, the temperature inside the greenhouse is generally very large. The suitable air humidity for cucumber growth and development is about 85%. When the air humidity in the shed exceeds 85%, ventilation and dehumidification shall be carried out immediately; in the evening, if the temperature is between 10°C and 15°C, ventilation shall be carried out in the greenhouse to reduce the temperature in the night shed to prevent the cucumber from becoming “crazy†and to suppress the occurrence of pests and diseases. , promote the fruiting of cucumber.
Hormones protect melons. Tests have shown that in the flowering period of cucumber, 100 times of the fruit preserver's hormones, such as flowering and spraying, can make the cucumber sit on the melon and keep the melon, and can promote the rapid expansion of the melon strip. In this way, cucumbers can be marketed in the morning to increase the yield in the early stage and increase the economic benefits, and it can also effectively suppress the “crazy growth†of cucumber plants.
Rational fertilization. Avoid a large number of single application of nitrogen fertilizer, in the case of ensuring the soil nitrogen supply in the shed, the appropriate application of some phosphorus and potassium fertilizer, is also an effective measure to prevent greenhouse cucumber "crazy" and improve production and quality.