After the greenhouse cucumber grows to a certain height, it is necessary to carry out vines. During the process of falling, the vegetable farmer should pay attention to some details.
Falling vines and picking up leaves are the experience of many vegetable farmers. However, there are also many vegetable farmers who do not pick up leaves, which has many drawbacks. After falling, the lower leaves are laid on the ground, and the leaves are gathered together. The lighting conditions are extremely poor, which is not conducive to the elevation of the ground temperature; due to the gathering of the leaves, the air circulation in the lower part of the plants is poor, coupled with the low ambient temperature, the humidity in the greenhouse increases. , Plant resistance decreased, pathogens can easily infect from the old leaves, leading to disease. Therefore, when cucumbers fall, they must cooperate with picking leaves.
The lower old leaves may be removed first, and then the wounds may be dried before falling. Alternatively, the leaves may be picked up simultaneously with the falling vines, and the leaves may be picked while falling. Cucumbers also need to pay attention to the selection of clear sunny morning to ensure that wounds recover as soon as possible, can not choose cloudy or sunny afternoon, in order to reduce the chance of disease infection. After picking off the leaves, it is necessary to pay attention to spraying the medicine in time and selecting biological agents such as H. harzianum or chemical agents such as chlorothalonil and copper thiazolyl to prevent them in advance and improve the disease resistance of the plants.
With advancing vines, adventitious roots are easily sprouted when cucumbers are close to the ground and the humidity is relatively large. The vegetable farmer should be checked in the log. If any root is found, cut it off immediately. After cutting the roots, copper preparations can be applied to the wound to prevent germs from infecting the wound.
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