Fu Changxin, former Qianshan Village, Lvshunkou District, Dalian City, said: He is a retired worker. He “passed out†time. He returned to his hometown and built a greenhouse to grow cucumbers. However, due to inexperience, cucumber seedlings in the shed grow very busy. I can't just sit and melon and consult local experienced farmers. They say that the cucumber is "crazy" and that it is caused by improper management. But they manage by experience, and I have no experience. I hope experts can tell him. Greenhouse cucumber specific management indicators. Cause greenhouse cucumber "crazy" mainly caused by temperature, humidity, hormone use and improper fertilization, production can be used to prevent the following measures: Temperature control. The suitable temperature for the growth and development of cucumber is 25°C-30°C, and it grows faster than 30°C, which can easily cause "crazy growth." Therefore, greenhouse temperature should be controlled between 25 °C -30 °C, should not exceed 30 °C; night temperature is maintained at about 18 °C as well, to reduce respiratory intensity, increase dry matter accumulation. Control humidity. The appropriate air humidity for cucumber growth and development is about 85%. When this index is exceeded, it should be immediately ventilated and ventilated; in the evening, it is best to ventilate for 1-2 hours while keeping the temperature not too low to reduce the humidity in the night shed and prevent "Mad Long" promotes flowering and fruiting. Hormones protect melons. After the cucumber is coated, the vegetative growth of the plant is inhibited. Therefore, we must try to make the first batch of flowers to sit more and more, and the first batch of flowers and vegetables sitting in the small can easily lead to "crazy." According to the experiment, the use of Paulownin hormone 100 times liquid flower, spray flowers, cucumber can sit more, keep melon, so that you can mention the morning market, increase early yield, but also can effectively prevent the plants "crazy." Rational fertilization. In the case of ensuring the supply of soil nitrogen, appropriate additional phosphorus and potassium fertilizers, to prevent the single application of large amounts of nitrogen fertilizer.
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