Planting techniques of balsam pear in greenhouse

Planting balsam pear in the greenhouse first needs to select suitable varieties, and then cultivate seedlings and arrange planting. Planting is usually carried out around February every year, and management can be carried out after the true leaves grow. The management focuses on watering and fertilization, checking diseases and insect pests, removing weeds in the field, and finally arranging harvesting.

Planting management of balsam pear in greenhouse

1. Temperature control and humidity control in greenhouse

After planting, the seedling stage was closed to raise the temperature and promote the slow seedling. Keep warm and freeze-proof before the end of March, and be properly ventilated during the day. Before the end of April, pay attention to heat preservation at night and ventilation and dampness during the day. From now on in May, ventilation will mainly be used for cooling and dehumidification. Ventilation will begin when the noon temperature reaches 30 ℃, and will be suspended when the temperature in the shed drops to 25 ℃ in the afternoon. In June, the apron membrane at the bottom of the greenhouse was removed and the roof film was preserved against rain.

2. Fertilizer and water management

Balsam pear likes fertilizer and dampness. Under the condition of sufficient water and fertilizer, the output value is high and the quality is good. On the basis of applying sufficient base fertilizer, fertilizer and water management must be strengthened. Although balsam pear is tolerant to fertilizer, it is weak at seedling stage. Slightly thicker fertilizer will burn wheat seedlings, so topdressing should pay attention to the weight before and after topdressing.

3. Pruning and framing

Strengthen pruning and culture with scaffolds. When drawing long tendrils, build a herringbone frame or arch or trapezoid frame in time to draw the vine on the shelf. Balsam pear is mainly composed of main vines, and lateral vines should be removed. Under sufficient conditions of fertilizer and water, several lateral vines can be left in the later stage to increase the output value in the later stage. At the same time, the old and diseased leaves should be removed at any time in the middle and later stage of production to facilitate ventilation.

4. Artificial assisted pollination

Because the temperature of precocious culture of balsam pear is low, the door of greenhouse is less open, the air activity in the shed is small, and it is difficult to pollinate naturally because of rare insects pollination, so artificial pollination is needed, and female pedicel or young gourd is modified with 20Mel, 40mg / L, 2ml / L, 4Mel D, in order to improve the fruit setting rate of balsam pear, beat the melon, promote the expansion of melon, and improve the output value.