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First, put the three major barriers
1, nursery clearance. This is the biggest key to the success or failure of seedless watermelon cultivation, the main content is 'the variety of the road, timely sowing fertilizers with soil. Block education lime degumming, moderate soaking. Artificial shell, body temperature germination. Ash cover species, double membrane coverage: timely hat removal, temperature control and moisturizing.
“Cultivation of varieties on the road, sowing at the right timeâ€; At present, we have the best comprehensive traits for flower seedless seedless one and black scalpless seedless one. The seedless watermelon has poor cold resistance. The best sowing period in the country is from April 5 to April. 15 days should not be too dry (too early to fail, thick skin. poor quality), "fertilizer with soil, block seedlings." Choose leeward sunny flatland. Make a wide 1.2 to 1.4 meters, 10-12 cm high nutrient soil The seedbed and the bed are covered with a layer of sand, loosely fertile and uncultivated fields, broken and sieved, and the nutrient soil is 0.4-0.5 square meters per acre (666.7 square meters). Square soil with urea 0.4 kilograms, superphosphate 5 kilograms, potassium chloride 0.4 kilograms.Requires a quasi-two uniform, that is, over the ruler, fertilizer over the scale, fully mix well. Will be a good distribution of nutrient soil seedbeds. , Drenched with water, until the water seeps, the soil is white, and then it is photographed, cut into 8 cm square soil cover film moisturizing spare."Lime degumming, moderate soaking." Prepared 75 grams per mu field seed. Seeds. Loosely wrapped with gauze. Disinfected in hot water at 55°C for 15 minutes. Repeat and rinse with 3% lime water until it feels scratchy. About 3-5 minutes). Then wash thoroughly. Then soak in fresh water for 6-8 hours. "Artificial shell, body temperature germination" Dry the soaked seeds with a clean towel. Open the tip twice with a gum Break to 1/2 (do not injure the seed) Immediately body temperature germination. Soaking in the morning, early evening germination the best, method; take a clean and boiled towel sterilized soaked. Twist until the dripping line is not. The seed after the clam shell is laid flat on the towel. The seeds do not overlap, then roll into a simple roll, wrapped in an external film, and the body is fixed and germinated. Turn over once or twice within 12 hours to make the temperature uniform. The buds will be applied after 36 hours. Seeds of 0.5 to 1 cm in length are sown (in case of rainy weather, they must not be sowed. Insulation must be conducted to prevent freezing). The ungerminated seeds continue to germinate. When sowing, the bamboo is first used to drill holes in the center of the nutrient clods to a depth of 2 cm. The radicles of the seeds are carefully placed in the hole and the shells are applied to the soil surface."Gray sand cover species, double membrane coverage". After sowing, use pre-prepared ash cover species (a part of hull ash mixed with sand. Note that avoid using sediment, not to mention fine). The thickness is 0.5-1 cm. After watering, lay a layer of mulch, then insert a layer of arch film on the bow cover. The arch film must have good transparency, no damage, and be sealed with earth pressure around the film. The film should not be removed before emergence, “timely release of the cap, temperature-controlled moisturizing,†70 -80% away mulch. Keep arches. 3. Manually remove seed shells each morning when the shell is wet. Note that the cotyledon is not damaged. After the seedlings are unfolded, the temperature in the bed is controlled at 25°C-30°C through the uncovering film. It is not uncovered at night and on rainy days. Sunny day bed surface sprinkler moisturizing. The amount of water is about 3 cm below the surface of the soaked bed. Do not overdo it at the same time. Daily replenishment once in the middle period. In the late 1-2 times a day. Stop water training for 2-3 days before transplanting.
Seedless watermelon is a treasure of melon, and the market is almost twice as expensive as seeded watermelon. Ten cultivation techniques are easy to grasp. Yield stability. General yield 3000-4000 kg. High yield up to ten thousand kilograms. None of the main cultivation techniques of watermelon can be summarized as the four-three management system has a good three major barriers; three fertilization is applied: three vines are well-arranged: three "defenses" are well done.