Management after planting of bitter gourd in greenhouse

Management methods after colonization of bitter melon in greenhouse:

1. Greenhouse temperature control and humidity control. After planting, the seedlings were warmed up in the greenhouse to promote slow seedlings. Before the end of March, it is necessary to keep warm and freeze, and properly ventilate during the day. Before the end of April, pay attention to heat preservation at night, and pay attention to ventilation and humidity during the day. After May, the main reason is to ventilate and cool down. When the temperature reaches 30 °C in the afternoon, the ventilation starts. When the temperature in the shed falls to 25 °C, the ventilation is stopped. In June, the apron film was removed from the shed and the roof film was kept from rain.

2. Fertilizer management. The bitter melon is like a wet fat, and the yield is high and the quality is good under the condition of sufficient water and fertilizer. On the basis of applying the base fertilizer, it is necessary to strengthen the management of fertilizer and water. Although bitter gourd is resistant to fertilizer, it is weak in fertility at the seedling stage, and the fertilizer is slightly thicker, which will burn the seedlings. Therefore, it is necessary to pay attention to the front and then heavy. After planting, the new high-lipid membrane mother liquor is usually diluted with 50-60 kg of liquid spray after planting the seedlings and the ground, which can increase the survival rate and restore the plant.

3. Pruning and scaffolding. Bitter gourd is strong in branching, and the cultivation density in greenhouse is large. It is more likely to produce vine leaves too dense, poor ventilation and light, and consume nutrients, affecting yield and commodity. Therefore, it is necessary to strengthen the pruning and cultivate with a stent. When pumping long tendrils, take a man-made frame or arched, trapezoidal frame in time, and put the vines on the shelves. The bitter melon is mainly composed of the main vine, and the side vine should be removed. Under the condition of sufficient water and fertilizer, several side vines can be left in the later stage to increase the later yield. At the same time, the old leaves and diseased leaves should be removed at any time during the middle and late stages of production to facilitate ventilation.

4. Artificial assisted pollination. Due to the low temperature of early maturity cultivation of bitter gourd, the opening of the shed door is small, the air flow in the shed is small, and there are few insect pollination, and natural pollination is difficult. Therefore, artificial pollination is required, and Zhuang Gutiling is sprayed in the melon stage and the expansion period to improve The fruiting rate of bitter gourd overcomes the melon, promotes the expansion of the melon and increases the yield.