The latest course of planting techniques and methods of watermelon in greenhouse

The current season is about to enter the peak period of watermelon. Watermelon is one of the necessary fruits for many people in summer. Watermelon has a very wide planting area in our country. Now most watermelons are planted in greenhouses, which can better control the temperature and humidity and promote the growth of watermelons. So how to grow watermelons in the greenhouse? The following editor brought the planting technology of watermelons in the greenhouse, let's have a look!

1. Planting soil

Watermelon whether in greenhouse or open field cultivation is to be rotation, and can not be continuous cropping with cucumber, balsam pear and other melon vegetables to prevent the harm of soil-borne diseases. We should choose the high-lying, normal drainage and irrigation, deep and soft land to build the greenhouse. Then before sowing in spring, it is necessary to turn the soil about 25 centimeters deep to destroy the overwintering sites of germs and pests. Use the low temperature environment to freeze and kill the pests, and then dig the melon ditch to facilitate the root growth of watermelon plants. Then apply sufficient base fertilizer, control the amount according to soil fertility, give priority to farm manure, and finally prepare for sowing.

2. Methods of reproduction

The breeding methods of watermelons in greenhouse are generally sowing and grafting, and sowing and propagation are the most commonly used. Seeds should choose varieties with high yield, strong disease resistance and no diseases and insect pests. Then put the seeds in warm water of about 50 degrees and stir them for about 8 portions. Then when the water temperature gradually decreases, the moisture should rise in time and last for about half an hour. Then use trisodium phosphate and other solutions to mix seeds, clean the seeds and then air-dry them with a wet cloth at a temperature of about 26 degrees to do budding work. During seed soaking, the newspaper should have a certain humidity, and when about 85% of the seeds germinate, they can be sown.

3. Sowing seeds at the right time

Sowing can be carried out when the soil temperature is kept above 16 degrees. Before sowing, dig the sowing ditch, water it thoroughly, and then put the seeds in the middle of the sowing ditch. Put one seed into each sowing hole and cover the soil with plastic film after sowing. Before emergence, the temperature should be controlled at about 22 degrees and watered regularly. When the seedlings are unearthed, uncover the plastic film and carry out ventilation and cooling work to avoid excessive growth of seedlings caused by high temperature and humidity. Ensure sufficient light after the emergence of the first true leaf of the seedling. Before planting, we should do a good job of soil preparation, disinfection and fertilization in the field, dig planting holes and pour enough water, so as to create a suitable growth environment for seedlings.

4. Field management

Water and fertilizer is a substance in great demand in the growth of watermelon. We should control the amount of water and fertilizer reasonably according to the growth of watermelon and the weather. Among them, attention should be paid to the adequate nutrition needed by topdressing in time to meet the growth needs of watermelons when they enter the spreading stage and young fruit stage. Then it is necessary to do a good job of pruning to prevent the excessive number of vines, leading to cross-overlap and affect the growth of each other. And it can also reduce nutrition consumption and concentrate nutrition on flowers and fruits. Finally, we should use the greenhouse to properly adjust the temperature, humidity and light to avoid environmental discomfort and affect the growth of watermelons.

The above is a brief introduction of greenhouse watermelon planting technology, greenhouse watermelon compared with open field cultivation is easier to manage, the growth ability is also stronger, the planting benefit will be better. That's all for today's introduction. This article is for reference only. Thank you for your reading and support.