How to plant watermelon with high yield

Watermelon has obvious seasonal characteristics in large-scale production due to the influence of its own habits, product properties and people's consumption habits. So how to grow it to get a high yield? Here are the planting techniques for you:

High-yield planting techniques of watermelon

Core tips: soil preparation and base fertilizer soil deep turning and whitening for half a month, spreading with quicklime 50kg to 75kg per mu, and then crushing the soil to make a continuous border trench of 2.5m, with 40cm on one side and 20cm on the other. Sun the seeds for 2 days before sowing to increase the physiological activity of the seeds. It is necessary to manage early to promote early hair, and control fertilizer and water after stretching vines to prevent overgrowth.

1. Land preparation and base fertilizer

The soil was deeply turned and whitened for half a month, and then the soil was sprinkled with 50kg quicklime per mu, and then the broken soil was made into a 2.5m trench with a height of 40cm on one side and an inclined border of 20cm on the other; a planting ditch with a depth of 25cm and a width of 40cm was dug on one side of the high border, in which 1000-1500 kg of rotten farm manure, 25 kg of ternary compound fertilizer, 1.5 kg of borax and 4 kg of magnesium sulfate were applied per mu.

2. Select improved varieties

Improved varieties are the premise of high yield and high quality. Rational distribution of early, medium and late ripening varieties can prolong the supply period of watermelon and improve economic benefits.

3. Seed treatment

Sun the seeds for 2 days before sowing to increase the physiological activity of the seeds. Soak the dried seeds in about 55 ℃ of warm water for 6 hours, pour clean water, wash the seed coat with 5% lime water, gently rub with hands until the seeds are not slippery, then rinse with clean water, and air-dry moisture to accelerate germination.

4. Sprouting

Can use greenhouse germination, electric blanket germination, quilt germination and body temperature germination and other methods. The planting area is large, which can be accelerated by greenhouse, electric blanket or at the same time with corn and rice. Budding can be accelerated by body temperature and quilt heating for beginners. First, body temperature accelerates budding. Spread the treated seeds on a wet towel, then wrap them in film or plastic bags and place them in adult underwear, which can sprout in 24 hours. The number of seeds in each packet should be 50 to 100 grams. Second, quilt heating and sprouting. Mix the treated seeds with 5 to 10 times clean, moist sawdust or fine soil, put them in a small carton, put them in a plastic bag without sealing, and place them in a quilt on the bed, then fill them with boiling water in 2 high-temperature glass bottles and place them next to the seeds of the bedding. Change the seeds with boiling water every 4 to 5 hours, so that the seeds begin to sprout. No matter which method is used to promote the bud, when the bud grows to a rice length, it should be sown.

5. Sowing seeds

Put the germinated one-meter-long seed flat on the nutrient soil of the prepared nutrition cup, sprout down (because the bud is the root), put only one germinated seed in each nutrition cup, and cover it with 1 cm thick nutrient soil. sprinkle a little 1000 times topzine water (or other fungicides). Insert the bamboo, cover the film, and press the film with fine mud around it. Then insert another layer of bamboo, about 15 centimeters apart from the first layer, cover with a layer of film, and then press the film around with fine mud. During this period, the temperature in the shed should be kept at 22 ℃ 28 min. After the first true leaf grows, the temperature can be cooled gradually. A few days before emergence, it was lowered by 1 ℃ per day and finally kept consistent with the natural temperature in order to adapt to the natural temperature after planting.

6. Field management

The growth of watermelon at seedling stage is slow, early management should promote early development, control fertilizer and water after vine extension, prevent overgrowth, create conditions for fruit setting, and choose better nodes for artificial pollination.