Nowadays, greenhouse cultivation is hot, and many growers have chosen to grow greenhouse vegetables. But Xiao Bian also found a strange phenomenon, that is, in the process of planting cucumbers in greenhouses, some farmers left the park early, but some farmers' cucumbers are still growing and still harvesting. What caused this?
In fact, this has a lot to do with the premature aging of cucumber. Especially in the middle and late management of cucumber, the main harvest of cucumber premature aging, prolong the harvest period, can significantly increase the yield of cucumber. However, many farmers have misunderstandings. They believe that at this stage of cucumber, as long as they use NPK fertilizer, it is enough to prevent and cure diseases. In fact, it is not so simple in the management of cucumbers in the middle and late stages. The following Hui Nongwang Xiaobian will talk to you about the management points of the greenhouse in the middle and late stages of the greenhouse.
The main management of cucumber in the middle and late stages is three aspects:
1, flower protection fruit
2, expanded fruit
3, leaf, root, anti-premature aging
Many farmers in the middle and late management pay more attention to the first two contents, as long as the fruit grows well, grows fast, and the output is high, but ignores the third content, which is the problem of leaf preservation, root preservation and prevention of premature aging. The so-called premature aging of cucumber is that the cucumber has not yet completed its life cycle and has begun to wither and die, resulting in the final production of cucumber is difficult to increase.
Another reason is that farmers choose quick-acting fertilizers in the early stage, quickly pull up the cockroaches, and apply quick-acting fertilizers with fast-expanding fruit in the result period. Even some fertilizers contain hormones, which are rapidly expanding, and the surface can increase yield, but in the long run It often causes premature aging of cucumbers and affects yield. So how is the cucumber managed in the middle and late?
1. Remove old leaves and diseased leaves in time
The greenhouse cucumber enters the middle and late stages of the melon, and the young leaves form the young leaves, and the young leaves become the old leaves. When the leaves get older, they can not only produce nutrients, but also consume the nutrients produced by other leaves, and are easy to infect diseases. Therefore, the old leaves, diseased leaves and yellow leaves should be removed in time, which not only reduces nutrient consumption, but also facilitates ventilation. Light, reduce the incidence of disease.
2. Control the growth of cucumbers and prevent leaf diseases
In the middle and late period, the leaves must be protected. The leaves are the source of energy, and the control is prosperous. Because the cucumbers are prolonged, the nutrients are consumed more by the leaves and stems, and the nutrients of the fruits are reduced. Therefore, it is best to control them. Do not use hormonal control, you can use triazole fungicides to spray, control the growth of cucumber apex top to achieve long-term control, while also preventing some leaf spot, powdery mildew, blight and other diseases of yellow leaves.
3, fertilizer and water management focus on roots
In the middle of cucumber, when applying nitrogen, phosphorus and potassium fertilizers, it must be mixed with rooting, rooting and root-protecting fertilizers, such as humic acid-soluble fertilizer, rich in humic acid and alginic acid, which can effectively promote root growth and development. It constantly stimulates the germination of new roots and capillary roots, and promotes the absorption of a large number of elements and trace elements.
The above is the key points in the middle and late management of greenhouse cucumbers compiled by Huinong. I hope to help you grow cucumbers.
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