The Complete Guide to the Latest Cucumber Watering Tips for Greenhouses
Cucumbers grown with improved greenhouse techniques can appear on our tables whether in spring and autumn or autumn and winter. Temperatures are now gradually rising, making it a good time to plant cucumbers. However, temperatures in early spring are still relatively low, so a greenhouse is still needed here. So how should greenhouse cucumbers be watered? What should be noted? Come and learn with the editor.
1. Pay attention to growth
When watering greenhouse cucumbers, the first thing to pay attention to is the growth of the cucumbers, and water should be supplemented according to their growth. Generally, when greenhouse cucumbers lack water, they show shriveled leaves and weakened growth, and pests and diseases also tend to occur more often. This is telling us to water in time. Many farmers, when preventing and controlling pests and diseases, also water in time and water frequently, and there is a certain scientific basis for this.
2. Pay attention to soil moisture
In addition, when watering we should also pay attention to soil moisture: water when dry, do not water when not dry. If the soil is not watered in time, the ground temperature will drop rapidly, which will cause severe soil compaction and poor permeability. This will cause the cucumber roots to lack oxygen and suffocate, leading to yellow leaves and root rot in the aboveground parts, so watering must be carried out according to soil moisture.
3. Pay attention to weather changes
Greenhouse cucumbers must be watered on a sunny day, or it must be ensured that 2-3 days after watering are also sunny, because once cloudy and rainy weather occurs after watering, it can easily cause excessive humidity inside the greenhouse and a rapid drop in ground temperature. And we all know that a high-humidity environment is favorable for bacteria to reproduce. Once the ground temperature becomes low and the humidity is too high, pests and diseases are extremely likely to breed, and then things get out of control. Therefore, when watering, it must be done on a sunny day, and at the same time pay attention to the weather forecast to ensure that there will be no cloudy and rainy days after watering.
4. Pay attention to ground temperature
The average daily ground temperature for greenhouse cucumber growth is about 22 degrees, and the temperature inside the greenhouse is between 15-20 degrees. If watering causes the ground temperature to drop rapidly, then the root system will be damaged, and the aboveground plants will also be affected. If watering on a low-temperature day, it is best to open the greenhouse vents in the morning before watering, and at the same time cover with plastic film. This can not only reduce water evaporation from the ground and keep the soil moist, but also effectively reduce the number of waterings, lower humidity, and reduce the breeding of pests and diseases.
The above is an introduction to the precautions for watering greenhouse cucumbers. We hope it can help you. If you want to learn more related knowledge, please keep following us.