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Fertilization: combination of organic and inorganic fertilizers. After effective soil testing, formula fertilization is based on the soil's previous conditions and crop requirements to meet crop growth needs. The general crop fertilization law is organic fertilizer plus compound fertilizer plus micro-fertilizer plus active beneficial bacterial fertilizer. Topdressing and base fertilizer complement each other. The fertilizer is mainly composed of multi-component compound fertilizer and organic fertilizer, and the combination of base fertilizer and flushing application is adopted. In this way, the soil layer can be activated, thereby increasing the area of ​​root extension and supplementing the various nutrients required for the plant. Appropriate amount of fertilization. Some vegetable farmers are blindly increasing the dosage when fertilizing, such as excessive base fertilizer, which will cause burning seedlings; if the amount of fertilizer is too large, it will easily cause rotten roots and roots. Therefore, it is necessary to master the right amount when fertilizing, and to cultivate in time after applying fertilizer. Choose the biological fertilizer for the road. Biological fertilizers contain a variety of beneficial bacteria, which have the effect of activating soil, increasing ground temperature, and regulating soil nutrients. Therefore, proper application of biological fertilizer can promote root development and improve disease resistance of cucumber.
Watering time: The winter greenhouse cucumber should be chosen on a sunny morning, because the water temperature is close to the ground temperature, the ground temperature is easy to increase, and there is sufficient time for dehumidification in the next half day. Therefore, try to avoid watering in the evening and even cloudy days, so as not to cause the occurrence and spread of vegetable diseases.
Watering amount: If the cucumber in the greenhouse is seriously deficient in winter, the amount of water should not be too large. At this time, the soil is prone to lack of oxygen and cause the roots to suffocate and the roots are yellow or even dead.
Water temperature: It is best to choose groundwater for winter cucumber watering. The water temperature should not be lower than 3 °C, and the water volume should be small. On the day of watering, the ground temperature should be restored 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.
Cucumber winter fertilizer control measures
Whether in winter or summer, the management of fertilizer and water in cucumbers is important. If the management of fertilizer and water is improper, it will cause bad phenomena such as rotten roots, roots and yellow leaves. Therefore, I would like to remind the majority of farmers and farmers to pay attention to the management of cucumber fertilizer.
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