How to manage watermelon cultivation in greenhouses
Greenhouse watermelon is more efficient than other crops, but its cultivation techniques are difficult and its production efficiency is low. In order to improve the planting efficiency of greenhouse watermelons, microbial fertilizer experts, Golden Baby, will discuss the quality and efficiency of greenhouse watermelon cultivation techniques in the following article.
1. Greenhouse planting soil fertilizer management
Judging from the practice for many years, it is advisable to use 4-5 tons of fertiliser for fertilization in Mu, about 50 kilograms of superphosphate and 15-20 kilograms of potassium sulphate. Generally, organic manure is applied in half of the volume during general tillage. Apply the other half. Excessive application of chemical fertilizers in greenhouse watermelon cultivation—especially nitrogen fertilizer—does not pay attention to the use of potash fertilizer and blindly increase the application amount. Topdressing is also dominated by quick-acting fertilizers, while organic fertilizers are used less or not. Fertilization in greenhouses should be dominated by organic fertilizers and bio-fertilizers. Organic fertilizers can be decomposed by farmhouse methods. However, due to the fact that some farmers are not familiar with their operations, they may cause poor fertilizer quality and cause burning of seedlings. It is recommended that you use a commercial starter such as a golden manure fermenter to decompose. Microbial fertilizers should be applied to soil in soil. After the biological fertilizer, microorganisms can be used to decompose the organic fertilizer into carbon dioxide for photosynthesis of the watermelon. In addition, the use of some special microbial fertilizers, such as Golden Baby fruit sweeteners, in the watermelon fruit development stage will also increase the added value of the fruit.
2 greenhouse watermelon planting temperature, humidity management
The temperature and humidity of greenhouses have a very important influence on the growth of watermelons. The temperature management must be carried out 5-7 days after planting. It is necessary to raise the ground temperature to promote mild seedlings. If the temperature is too high during the day, the necessary measures must be taken to reduce the temperature and shading. . After the completion of easing the seedlings, ventilation treatment is required to adjust the temperature in the shed. The temperature should be within 30°C during the day and 15°C during the night. In the full flowering period of watermelons, sufficient lighting and nighttime temperatures must be maintained. If the temperature is too low after artificial pollination, fruit development will be affected. When the outside temperature exceeds 18°C, the ventilation should be increased to keep the daylight temperature within 31°C. To avoid excessive temperature difference, this stage of watermelon into the expansion of the guaranty period and maturity, the temperature difference is too large to lead to quality decline. For greenhouse moisture, if the mulching is used, the air humidity is low. When the watermelon is full or enclosed, the amount of transpiration increases and the amount of irrigation increases, resulting in an increase in control humidity within the shed. At this time, it is better to control the humidity in the shed during the day to 60%, and to 80%-90% at night. Excessive air circulation and inter-row grassing to reduce soil evaporation and other measures to adjust the air humidity to reduce the disease.
3. Shed watermelon management
In the case of dense planting, pruning is carried out. When the vines grow to 20 cm, a more robust shoot is left and the rest is removed. This work must be carried out before the melon is seated. Tied vines are suitable to be carried out under the condition of a stand. Bamboo rakes or slings can be used. Bamboo culms are preferred. When the main vine reaches 30 centimeters, remove the small shed in the shed and insert it. Insert two bamboo rakes along each squash. On both sides of the plant, it should be more than 10 centimeters from the root of the plant. Straight, interlaced, followed by vines, tied vines, when reached 30-40 cm, you can lead the vine vines into a stand, a vine, a vine, in the process of binding the vine to be processed, in the later Be careful not to touch the melons, the vines and the pruning can be carried out at the same time.
4. Greenhouse pollination, fruit thinning management
According to the flowering habits of the watermelons in the greenhouse, pollination is good from 8 to 9 am. If cloudy days are encountered, male flowers can be delayed later. When thinning fruit, in order to choose the second female flower on the melon, but also to control the time to stay good melon, too early is not correct, late is not conducive to market, after pollination in 5 days, the melon and fetus will increase rapidly, to On the main vine to stay on the guava, the main vine can not stay on the side of the vine to choose to retain the melon. In short, the cultivation of greenhouse watermelons must be controlled from every link, and at the same time, it must be managed in conjunction with local specific conditions. Management details can be consulted: Beijing Huaxia Kangyuan Technology Co., Ltd. telephone toll-free hotline
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