Many novice gardeners planted cucumbers with very poor shape and low quality, How often to water cucumbers is a particularly important matter, because it can directly affect the high yield and quality of cucumbers and requires certain watering skills. This article will explain to you.
Water in advance
Watering the cucumbers before planting is the week before the cucumber seedlings are planted. After adjusting the planting rows, water the cucumbers.
Let the soil block fully absorb enough water to ensure that there will be sufficient groundwater in the depths of the soil after the cucumber seedlings are planted in the future so that the roots of the cucumber seedlings can be guided to grow down.
By watering the water before sowing in advance, the moistness of the furrow can be ensured. At the same time, this is the position of the planting line of cucumber seedlings. In the future, the uniform position of watering and top dressing of each cucumber seedling can be ensured.
The roots of cucumbers are relatively shallow. They both like slow humidity and are afraid of drought. They are also not tolerant of waterlogging. The most suitable soil humidity for planting cucumbers is 85%-95%. The most suitable relative humidity of the air is as follows:
- 80% humidity during the day;
- 90% humidity at night;
When cucumbers are grown in greenhouses, the relative humidity of the air is generally lower during the day and higher at night.
But in the rainy and snowy weather, the relative humidity of the air is relatively high. When it exceeds 80%-90%, a water film will form on the surface of cucumber leaves, which will not only interfere with the exchange of gas but also reflect light, which will affect the Photosynthetic intensity of cucumber leaves.
In addition, due to the high relative humidity of the air, the transpiration function of cucumber leaves will be hindered, and the absorption of water and nutrients will be affected;
Therefore, the photosynthesis of cucumber will be weakened and the growth rate will decline. If the dew time of the cucumber leaves is too long, it will create favorable conditions for the propagation and spread of pathogens. Therefore, when the weather is rainy and snowy, the cucumber will Will always grow stunted.
Watering at the right time
In the early stage of cucumber fruiting, the temperature at this time is relatively low, the cucumber plants are relatively small, and the number of fruiting cucumbers is not much;
Gardeners can wait for the two leaves under the cucumber head to turn yellow-green before watering.
Gardeners can water every other week or so.
In the period when cucumbers are in full bloom, there are more cucumbers, and the temperature at this time is also higher, so the water demand of cucumbers is also increased.
Gardeners can water according to the yellow-green color of the 3 leaves under the cucumber head.
Gardeners can water once every day, or once every 2 to 3 days. In this way, it can promote the expansion of young cucumbers and increase the yield of cucumbers.
It is generally necessary to choose sunny days when watering in winter, and it is best to have a few consecutive sunny days after watering.
During the day, watering should be done in the morning in winter or early spring.
At this time, not only the difference between the water temperature and the ground temperature is relatively small, the ground temperature is easier to recover, but also there is sufficient time to drain the humidity.
It is generally not suitable for watering in the afternoon and evening, especially on rainy days, otherwise, it will easily cause excessive humidity in the shed and cause the occurrence of diseases.
Water at noontime to avoid affecting the ecological function of the root system when watering at high temperatures.
In summer and autumn, you should choose to water in the morning and evening. Because the weather is relatively hot in summer, the greenhouse can be ventilated day and night to cool down.
The amount of watering must be small and must not be full. The roots of melon crops have a small absorption capacity. They like wet but are afraid of waterlogging.
Soil loosening and disease prevention
The root system of the melon plant is relatively shallow, so it is necessary to remove the mulch film and loosen the soil frequently, plow the soil, keep the soil loose, and increase the oxygen content in the soil.
Uncover the mulch film and loosen the soil every half a month. Uncover the mulch film in the morning on a sunny day, and plow immediately after uncovering the mulch film;
Break the soil into fine pieces, deep-plan the trenches to enhance air circulation, and re-cover the mulch before the afternoon after loosening the soil.
When watering, you must do a good job of disease prevention. If the plants in the shed have already developed the disease, it is best to spray prevention before watering, so as to prevent after watering;
The scope of disease outbreaks will be wider, which is very detrimental to cucumber production.
Another situation is that during the growth of cucumbers, the soil humidity fluctuates up and down, which causes the nutrient supply to fluctuate up and down, which will form what we often call tiny melons, so gardeners must master watering skills. frequency.
Finally, I hope the above content can be helpful to everyone.
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