Several new technologies for greenhouse cucumber production

1, light smoke shed. When the cucumber seedlings grow to 1-4 true leaves, light smoke is added to the greenhouse, keeping the seal for 2-3 days and nights, increasing cucumber female flowers and increasing cucumber yield. This is because the smoke contains carbon monoxide, which inhibits the oxidation process in the seedlings, allowing the melon to form numerous female flowers. At the same time, smoked can also kill cucumber spider mites. Changing the smoke to gas can also receive better results. 2, artificial pollination. Cucumbers are unisexual flowers, which are divided between male and female. In the field, they are pollinated by insects. Because there is no insect in Wending as a medium, it will cause poor pollination affect melons. If in the appropriate period after the flowering of the protected cucumber, the male stamens of the collected flowers are applied several times to the stigmas of the female flowers, artificial pollination can be achieved, reducing the loss of female flowers, increasing the rate of sitting cucumbers, and increasing the size and length of the cucumbers. , delicious color and delicious. 3, red light. Using red light bulbs for 2-3 hours per night, the cucumber yield can be significantly increased. If flickered pulsed light is used, the yield can be higher than continuous light. 4, add gas fertilizer. In the greenhouse, several barrels of fertilizer are put into place, and the concentration of carbon dioxide in the room is increased by fermentation. Carbon dioxide can also be produced by burning firewood and burning stoves in winter. Especially in greenhouses that use heating equipment, it is more important to supplement carbon dioxide gas fertilizers. 5, foliar spray fertilizer. Spraying 1% urea aqueous solution at the seedling stage can promote early-onset seedling growth. It can also spray 0.5% ferrous sulfate aqueous solution to promote seedling growth and strong green color. In the case of 7-leaf, spray 0.2% boric acid solution to protect the melon. Drop; In a large number of fruiting melons, spray 0.3% potassium dihydrogen phosphate and 1% urea mixture to make up fat, promote melon production. 6, micro-water irrigation. In the traditional ground gully irrigation, the greenhouse temperature and the ground temperature are significantly reduced and the humidity is increased, which is not conducive to the growth of cucumbers, and the pests and diseases are serious. Greenhouse cucumber with micro-irrigation is used, and groundwater irrigation is conducted in a suitable period. The drip pipe is placed in double high ridges covering the mulching film, which does not affect the ground temperature, but also saves water, reduces pests and diseases, and improves the yield and quality of cucumber.