What should we pay attention to when planting cucumbers in greenhouse?

What should we pay attention to when planting cucumbers in greenhouse? Please guide cucumber planting in greenhouse to pay attention to the following points: first, do not change the light angle of greenhouse at will. Now the angle of solar greenhouse planting cucumber is proved by long-term scientific demonstration, and its north-south span, height and back slope angle should not be changed at will. Second, it is taboo to concentrate on all kinds of chemical fertilizers, especially nitrogen fertilizer, when it is humid and hot, it will produce a lot of harmful gases, such as concentrated application in the planting ditch, it can lead to cucumber root burning and dead seedlings. Three taboos planted too deep we all know that cucumber grafting is for disease resistance, such as planting seedlings too deep, cucumbers will regenerate roots, lose the role of grafting, can not achieve the purpose of grafting. Four taboos do not pull grass in cloudy, rainy and snowy days, people often think that when pulling grass in overcast, rainy and snowy days, the temperature in the greenhouse will drop, so do not pull grass. In fact, this practice will do more harm, the temperature will only slowly drop, but also because the cucumber can not see the sun for a long time, resulting in physiological disorders. Five taboos in winter due to the application of a large amount of nitrogen fertilizer in the process of dispersion after the encounter of water, it will greatly reduce the water temperature, reduce the ground temperature and affect the normal growth of cucumber seedlings. Six taboo application of immature organic fertilizer will ferment quickly after high temperature, a large amount of ammonia will be produced in the process of fermentation, the light will decompose the nitrogen fertilizer in the greenhouse, the heavy can make all cucumber seedlings die in the greenhouse. Seven taboos spray in the evening at noon the temperature in the greenhouse is too high, the leaf water transpiration is fast, and the medicine is dried before it is absorbed, especially the fierce zinc medicine, which will cause drug damage. Spraying in the evening is just the opposite of noon, because it is not completely absorbed by cucumber leaves after spraying, it will decompose and fail due to moisture, which can not achieve the purpose of treatment, but aggravate the occurrence of the disease. Eight taboos falling seedlings are too short, one time falling seedlings too low will sharply reduce the light area of leaves, affecting the normal growth of cucumber seedlings. Click to get more cucumber planting techniques click to get more vegetable planting techniques