The daily management of greenhouse cucumbers for high yield should be "eight taboos"

To avoid changing the light-receiving angle of the greenhouse in the greenhouse, the light angle of cucumber cultivation in greenhouse is obtained through long-term practice and scientific demonstration, and has a reliable theoretical basis. Therefore, do not arbitrarily change the north-south span, height, and slope of the greenhouse. Avoid concentration of fertilizers when planting Various chemical fertilizers, especially nitrogen fertilizers, will produce a large amount of harmful gases in the humid high temperature, such as concentrated application in the planting ditch, it can lead to the burning of cucumber roots. Avoid colonization of deep cucumber grafting is to resist disease, such as planting seedlings too deep, cucumber will produce reproductive roots, loss of grafting, it will not reach the purpose of grafting. Avoid rain, snow, and snow. People tend to think that overcasting, rain, and snow are pulling grass and the temperature in the greenhouse will fall. Therefore, the weather in the shade, rain, and snow does not increase. In fact, this practice will cause more harm. The weather in the shade, rain, and snow will not only reduce the temperature at room temperature, but will also cause physiological disturbances because the cucumber will not see sunlight for a long time. Avoid large amounts of nitrogen fertilizer in winter due to nitrogen fertilizer in the dispersion process, the water temperature will greatly reduce, promote the ground temperature to reduce, thus affecting the normal growth and development of cucumber pods. Avoid application of organic fertilizer without compost will be quickly released after high temperatures, in the fermentation process will produce a lot of harmful gas ammonia, light decomposition of nitrogen in the greenhouse, in serious cases will also kill all the cucumber seedlings poisoning in the greenhouse . Avoid noon, evening spray spraying medicine at noon spraying greenhouse temperature is too high, leaf water transpiration fast, the drug has not absorbed, it dried, especially manganese zinc pesticides, but also cause phytotoxicity. Spraying in the evening happens to be the opposite of noon. After the spraying, it is not completely absorbed by the cucumber leaves. It will be decomposed and destroyed due to moisture, so that it will not achieve the purpose of treatment. It will not only prevent pests but also increase greenhouses. Humidity increases the degree of disease occurrence. Beggars falling too short and falling too short will reduce the light intensity of the leaves and reduce the photosynthetic efficiency, which will affect the normal growth and development of cucumber seedlings, reduce the yield and affect the quality.

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