Why is the cucumber produced so bitter? Cucumber suffers mainly because there is a substance called bitterin in the cucumber plant. The content of bitterin varies with the type, variety and cultivation conditions of the cucumber. If the bitter cucumber is consumed excessively, it will cause vomiting and diarrhea. Poisoning symptoms such as cockroaches, so in the process of planting cucumbers, we must take corresponding measures to prevent the emergence of bitter cucumbers. Next, Xiaobian talks about six measures to prevent cucumber suffering.
First, avoid low temperature or high temperature
When the temperature or the surface temperature is lower than 13 degrees, the permeability of the cucumber cell wall will be reduced, and the nutrient and water absorption will be limited, resulting in the cucumber being prone to bitterness;
If the greenhouse temperature is higher than 30 degrees, or when it is at 30 degrees for a long time, it will cause the cucumber to become bitter;
In the process of planting cucumbers, it is necessary to enhance the temperature-increasing and heat-insulating properties of the protection facilities, reasonably adjust the temperature, and avoid the temperature limit formed by the bitterness of the cucumber.
Second, watering should be reasonable and timely
The temperature is higher, the soil moisture is less, and the physiological drought of cucumber plants produces bitter melon;
In the process of planting cucumber, providing the water needed for growth, maintaining the swell of cucumber plant tissue, the stability of the plant body temperature, etc.;
When watering a small number of times, the water temperature should not be too low, to avoid the formation of cucumber bitterin in the loss of water in the plant;
After the cucumber is planted, the seedlings should not be excessive, otherwise the root melon is easy to bitter.
Third, fertilization should balance the right amount
Root fertilization: control the application of nitrogen fertilizer at the seedling stage to avoid the length of the plant; the proportion of nitrogen, phosphorus and potassium fertilization at the peak of flowering is 5:2:6, and the supply of nitrogen and potash should be strengthened at this stage;
Top dressing: the seedling stage, the beginning flowering stage, the young melon stage leaf surface spraying rare earth micro-fertilizer 1 time; the full flowering period and the fruit-bearing period every 667m2 with urea 0.5kg + water 150kg, stir well and then spray on the foliar surface.
Fourth, the density should not be too large
If the planting is too dense and the light is not good, it will cause the bitterness of the cucumber to increase;
When planting cucumbers, early planting and post-sparing methods should be adopted to effectively reduce the occurrence of bitter melon.
Five, to prevent damage to the roots
When the cucumber is planted, the root of the cucumber will increase the bitterness of the cucumber;
When planting cucumbers, sown with sand trays, avoid root damage when planting seedlings, and cultivate with mulch for mulching.
Six, bitter melon can not keep seed
For cucumbers with bitter taste, the melons should be removed and the cucumbers should be selected without bitterness.
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