Continuous overcast management model of cucumber

The planting area of cucumber in our country is very large. When planting cucumbers, we need to do a good job of management according to the changes of the weather. Cucumber has a large demand for temperature and light, so it is very disadvantageous to its growth when it encounters continuous cloudy days. Therefore, when we encounter continuous cloudy days, we should pay attention to strengthening management. So how to manage cucumbers on continuous cloudy days? The following editor brings you the management mode of continuous cloudy days of cucumbers, let's have a look!

1. Increase the light

In the environment of continuous cloudy days, the natural light time will decrease obviously. The serious lack of light in the greenhouse led to the decrease of photosynthetic matter content and excessive nutrient consumption of cucumber plants, resulting in premature senescence of cucumbers. So in cloudy and rainy days, if the light in the shed is too weak, then it is necessary to wipe the greenhouse film in time to improve the indoor lighting time and intensity. Enhance the photosynthesis of leaves, increase the accumulation of photosynthetic matter, and reduce the premature senescence of leaves. Then we should also pay attention to control the temperature, continuously overcast the world, the temperature in the shed should be kept at about 25 degrees during the day and 15 degrees at night.

2. Protect the root system

The root distribution of cucumber plants is relatively shallow and is generally concentrated in the topsoil layer about 20 cm deep. Therefore, it is very sensitive to the changes of soil temperature and water and fertilizer. Therefore, in continuous cloudy weather, we should pay attention to do a good job in root protection. In continuous cloudy days, the evaporation of cucumber leaves is relatively small. Therefore, except in the case of very dry soil, it is generally not suitable for watering. Avoid excessive humidity, leading to retting roots. After even a cloudy day, it is not appropriate to immediately water, because at this time is in the recovery period of the plant, the root vitality is relatively poor, if watering too early, then it will lead to serious root damage, plant wilting.

3. Supplement nutrition

In continuous overcast days, the plant itself produces very few nutrients. If the cucumber plant lacks nutrition, it is very disadvantageous to its growth. Therefore, we should also pay attention to the work of replenishing nutrition. Giving priority to foliar fertilizer and replenishing nutrition to the foliar surface can effectively enhance the stress resistance of the plant. Foliar fertilizer can be used with total nutrient foliar fertilizer, chitin and boletin lactone and so on. It can effectively promote the synthesis of chlorophyll in cucumber leaves and enhance the photosynthetic efficiency of cucumber.

4. Post-Yin management

The management of changing from sunny to sunny after even overcast is also very important. Because the leaf area of cucumber is relatively large, so its transpiration coefficient is also very high. But because the root is underdeveloped, it is easy to be damaged. Therefore, after the weather suddenly clears up, the sharp changes in light and temperature will cause great damage to cucumber plants. Therefore, after clearing up, we should pay attention to shading work, adjust the light and temperature, so that cucumbers gradually adapt to changes in the environment. At the same time, appropriate amount of root-raising and root-promoting fertilizer should be applied, combined with fully water-soluble fertilizer to promote cucumber plant growth as soon as possible.

The above is a brief introduction to the continuous overcast management model of cucumber. That's all for today's introduction. This article is for reference only. I hope it can help you all.