Detailed Explanation of Key Techniques for Fruit Retention in Greenhouse Cucumbers
Greenhouse cucumber cultivation is now very common in our country, mainly carried out in winter. Because winter temperatures are low and daylight hours are short, the cucumber plants grow rather weakly. So if we want to increase yield, proper fruit retention is very important when growing greenhouse cucumbers. So how should we retain fruits when planting? Today, the editor brings you greenhouse cucumber fruit retention techniques. Let's take a look below!
1. Whether to Keep or Remove the Root Cucumber
After the cucumber plant has set its root cucumber, we need to pay attention to controlling the timing of keeping or removing it. The choice of timing has a huge impact on the cucumber's growth. It should mainly be determined by the length of the root cucumber; generally, whether to keep or remove it should be decided when the root cucumber is about 8-9 cm. If the root cucumber's growth has never been very strong, then it can be picked off when it grows to about 7 cm. On the contrary, if the root cucumber's growth remains strong, then the picking time should be appropriately delayed. By keeping or removing the root cucumber based on its length, the plant's growth can be adjusted to ensure that the cucumbers grow consistently.
2. Do Not Retain Too Many Fruits
During the peak fruiting period of cucumbers, many people think the cucumber plants are growing quite strongly. So they keep every fruit and dip every fruit. In fact, if planting in winter, this method of retaining fruits is inappropriate. Because winter temperatures are low and natural light is insufficient. The cucumber plant does not accumulate much nutrition, and its growth is not very strong. If too many fruits are retained, each fruit will compete with the others for nutrients. This easily produces deformed fruits, and in the later stage it can also easily cause premature aging of the plant and reduce yield. Therefore, in the early fruiting stage, keep about 3 fruits per plant. In the late fruiting stage, the plant's growth is weaker, so fewer fruits should be retained, usually about 2.
3. Reasonable Topdressing
After retaining the fruits, we should also do a good job of topdressing according to the actual condition of the fruits. If the fruits grow quickly and the fruit bodies are straight and glossy, then topdressing may not be needed. On the contrary, if the fruits are dull and lack luster, or are curved and deformed, then topdressing should be done in time. The fertilizer for topdressing should mainly be highly absorbable and highly utilized Gaojiaxing water-soluble fertilizer, to promote the fruit bodies to return to normal as soon as possible. And it is also necessary to ensure the balance between the plant's vegetative growth and reproductive growth, control the amount of fertilizer applied, and avoid burning the seedlings or soil salinization caused by excessively high concentration.
In winter, the soil temperature is also very low, so the cucumber roots are very weak in activity. Yellow leaves and yellow growing tips are prone to appear. Therefore, when fertilizing, in addition to applying an appropriate amount of chemical fertilizer, we should also pay attention to the application of various functional fertilizers. For example, microbial inoculants, chitin, etc. At the same time, spraying and drenching should be combined. For example, when drenching, appropriately spraying a full-nutrition foliar fertilizer on the leaves is more beneficial to the plant's growth and can also delay the aging rate of cucumber leaves.
The above is a brief introduction to greenhouse cucumber fruit retention techniques. That is all for today's introduction. This article is for reference only, and we hope it can help everyone!