Compared with greenhouse cucumbers and open field cucumbers, greenhouse cucumbers have a significantly longer growth period. Therefore, the management of stems and vines is not the traditional bamboo and wood "frame" cultivation, but the rope "hanging vine" cultivation. In this way, it is possible to reduce the height of cucumber plants by "falling vines", improve ventilation and light transmission, promote the continuous growth of cucumber stems and vines, continue to fruition, increase yield, and at the same time facilitate later management. When giving cucumbers to vines, you must master the following skills:

1. Grasp the falling time. ****** is when the cucumber top growth point is close to the roof, the bottom has no leaves, and the stems are more than 30 cm above the ground.

2. Control watering before falling. Do not water the cucumbers within a week before the vines fall to control the soil moisture. The purpose is to reduce the water content of the vines of the plants, enhance the toughness of the vines, and prevent the vines from being brittle due to the high water content of the vines.

3. Remove the old leaves at the base. Before falling vines, remove all old and diseased leaves at the base of the vines, and take them out of the greenhouse for destruction to prevent contact with soil pathogens on the basal leaves after falling vines, which may cause infection and endanger the entire greenhouse cucumber. After removing the old leaves at the base, the whole plant should keep more than 20 functional leaves.

4. Move lightly when falling the vine. In order to prevent vines from hurting, ****** choose to fall vines after a sunny day. In the specific operation, the action should be light, and the basal stem should be coiled and dropped in the direction of natural bending. Avoid pulling the stem or straining it or even breaking it. The melon vines should fall on the mulch, so that it is easy to walk between the rows during management, and the other is to prevent the cucumber vines from taking root in the soil and making the grafting and replacing roots useless. Every time the vines fall about 80 cm, the distance between the base leaves and the ridge surface after vine fall is required to be more than 15 cm.

5. Strengthen management after falling vines. After the vines fall, firstly increase the temperature in the greenhouse to promote the healing of cucumber stem wounds as soon as possible; secondly, spray medicaments according to the occurrence of cucumber diseases, strengthen disease prevention and control, and prevent pathogens from entering when they are weak; thirdly, timely watering and fertilization are required. Spray fertilizer on the leaves to increase the supply of fertilizer and water, so as to prompt the plant to restore vitality, grow leaves, bloom, and fruit, and increase yield; fourth, wipe off the side branches that germinate from the base of the vine so as to concentrate nutrients for the growth of the main stem.

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