The latest matters needing attention in watering cucumber in greenhouse
Cucumber improved greenhouse technology cultivation, whether spring and autumn, or autumn and winter, can appear on our dining table, and now the temperature is gradually rising, it is a good time to plant cucumber. But the temperature is relatively low in early spring, and a greenhouse is still needed here, so how to water cucumbers in the greenhouse? What should I pay attention to? Let's get to know it with the editor.
1. Pay attention to growth
Cucumber watering in greenhouse should first pay attention to cucumber growth and replenish water according to cucumber growth. Generally, cucumbers in greenhouse will show leaf atrophy and weakening growth when they are short of water, and there will be more diseases and insect pests. This is to tell us to water in time. In the prevention and control of diseases and insect pests, many farmers also adopt timely watering and frequent watering, which also has a certain scientific reason.
2. Pay attention to soil moisture
In addition, when watering, we should also pay attention to soil moisture, drought watering, non-drought without watering, if the soil is not watered in time will cause a rapid decline in soil temperature, which will cause serious soil consolidation and poor permeability. This will cause cucumber root anoxia suffocation, resulting in aboveground yellow leaves and rotten roots, so watering must be combined with soil moisture.
3. Pay attention to the weather changes
Cucumber watering in the greenhouse must be on a sunny day, or be sure to be sunny 2-3 days after watering, because once it is cloudy and rainy after watering, it is very easy to cause excessive humidity in the greenhouse and the ground temperature drops rapidly. And we all know that the high humidity environment is conducive to bacterial reproduction, once the ground temperature becomes low, the humidity is too high, then diseases and insect pests are very easy to breed, so it is out of control. Therefore, when watering, we must choose sunny days, and pay attention to the weather forecast to ensure that there will not be cloudy and rainy days after watering.
4. Pay attention to the ground temperature
The average daily ground temperature of cucumber growing in greenhouse is about 22 degrees, and the temperature in the greenhouse is between 15 and 20 degrees. If watering leads to a rapid decline in ground temperature, it will cause root damage and the aboveground plants will be affected. If watering is in a low temperature day, it is best to open the vents of the shed in the morning, and then water it, and at the same time cover with plastic film, which can not only reduce ground water evaporation and ensure soil moisture, but also effectively reduce watering times and humidity. Reduce the breeding of diseases and insect pests.
The above is the greenhouse cucumber watering points for attention, hope to help you, want to know more related knowledge, please pay attention to us.
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