Planting technology of watermelon in greenhouse

Soil: choose fertile soil and turn about 25 cm deep before sowing to ensure the follow-up growth of watermelons. Sowing: sowing can be carried out when the soil temperature is above 16 degrees. Field management: according to the growth situation and weather environment reasonable control of water and fertilizer, timely pruning, to prevent excessive number of vines; the final arrangement of harvest.

Planting technology of watermelon in greenhouse

1. Soil

Select the land with high terrain, 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.

2. Methods of reproduction

Generally, it is mainly sowing and grafting, and the most commonly used is sowing and reproduction. 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. 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

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. Ensure sufficient light after the emergence of the first true leaf of the seedling.

4. Field management

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.