Last winter, it was cold and snowy, a rare year with long duration of low temperature and high snowfall days. The continuous low temperature and low light have a great impact on the growth of greenhouse vegetables. In order to mitigate the harm, in practice, we have explored a set of management techniques for cucumber winter vines.
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In the deep winter season, the temperature in the greenhouse sometimes falls to a level that the crop cannot tolerate. At this time, the growth of cucumber has been in the harvesting period. Most of the pods closely adhere to the shed or ceiling. In this case, the growth point of the quinces close to the shed must be chilled, and even if the temperature turns warm, it will turn yellow. Stalks and leaves are also difficult to recover. Through observation and exploration, we drove the cucumbers down and reduced the growing point of the melons and separated them from the cold environment of the greenhouse. This will not only prevent melons from freezing damage, it will not affect the normal growth of melons, but also increase production.
Specific cucumber management techniques include: Before the arrival of deep winter season, the Melon period just passed, about the beginning of December, you can cut the lower 2 to 3 old leaves, do not cut too much, so as not to affect the The vegetative growth. From 10 am to 2 pm, it is possible to carry out vines. It is easy to break the stems and leaves sooner or later. When falling, first loosen the upper part of the sling, so that the cucumber squash hovering from top to bottom, falling height can be determined by the height of the shed roof and cultivation conditions, generally the front corner of the greenhouse, the growth point is about 20 cm from the roof top, The middle and back parts can be about 30 centimeters from the roof, the vines are too low, and the scorpions are squeezed too densely, affecting the light transmittance, and further affecting the yield. After falling, the hanging rope can be re-fixed and 50% of carbendazim 600 times is sprayed again to prevent various diseases caused by leaf damage or human contact caused by falling manipulative operations.
After falling, it will greatly improve the lighting conditions in the shed. The temperature at the growing point will increase by more than 2oC, which will extend the harvest time of the main vine and increase the economic benefits of the crop and farmers. More importantly, the use of cucumber vines management techniques in the deep winter season is a more practical technique for preventing cold hazards.