The management of winter fertilizer and water in cucumber greenhouses is very important. If the management of fertilizer and water is improper, it will cause bad phenomena such as rotten roots, roots and leaves, which will affect the yield of cucumber.
In the fertilization, formula fertilization should be carried out according to the law of organic fertilizer + compound fertilizer + micro-fertilizer + active beneficial bacterial fertilizer. The fertilizer is mainly composed of multi-component compound fertilizer and organic fertilizer, and the combination of base fertilizer and flushing application is adopted. It can activate the soil layer, increase the area of ​​root extension, and supplement the various nutrients needed for the plant. In greenhouse greenhouses, fertilization should be less and more precise. Do not use too much fertilizer at all. Otherwise, it will cause burning of seedlings. The amount of fertilizer applied should not be too large. Otherwise, it will easily cause rotten roots, roots, etc., and the amount should be mastered when fertilizing, and after applying fertilizer It is necessary to cultivate in time.
In the watering, cucumbers in greenhouses should be watered in the morning on a sunny day. At this time, the water temperature is close to the ground temperature, the ground temperature is easy to rise, and there is sufficient time for dehumidification in the afternoon. Try to avoid watering in the evening and even cloudy days. In order to avoid the occurrence and spread of vegetable diseases, the amount of water in the greenhouse should not be too large, otherwise the soil is prone to lack of oxygen and cause root suffocation. The greenhouse watering in greenhouse is best to choose groundwater, the water temperature should not be lower than 3 °C, and the water volume should be Small, watering the day, to restore the ground temperature as soon as possible. At the same time, try to drain as much as possible. If the humidity is too high, it is easy to cause downy mildew and powdery mildew.
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