Square watermelon cultivation techniques

Square watermelon, because of melon shape is good, easy to transport, favored by the majority of consumers. The square watermelon cultivation techniques are summarized as follows: First, species selection. Square watermelon cultivation should choose large fruit type, strong disease resistance, thick and thin sparse varieties. My main choice is Xi Nong No. 8, Xin Cheng, Zheng Za 5 and other varieties. Second, the mouth arrangement. Spring planting "single-coverage" cultivation should be planted from late March to mid-April and harvested from late June to mid-July; "double-cover cultivation", sowing in mid-March, harvesting in mid-June; greenhouse cultivation The seeds are sown from mid-February to early March and harvested from mid-May to early June. Third, square watermelon nursery 1, nutrition soil preparation. Use 7 vegetable garden soils that have not been planted in 3 years, 1 person's livestock and poultry manure fully decomposed, 2 plant ashes, 50% carbendazim WP 100g per cubic meter of mixed soil, 3 superphosphates Kilograms, 3% phoxim granules 500g, mixed, mixed evenly. 2, seed processing. For 1 day drying, remove miscellaneous seeds and pod seeds, soak the seed in 100 times liquid formaldehyde solution for 1 hour, then rinse with water, hand wash, wash the mucus, and then soak in normal temperature water for 6-8 hours. After immersing the soaked seeds for 3-4 hours, remove the seeds, dry the water, and spread the seeds on a wrung towel or gauze, and cover the first and second layer of gauze to make a germination bed. - 3 days, 70-80% of the seeds germinate, axillary buds in batches, sowing in batches. 3, sowing and nursery management. Use nutritional seedlings. Fill nutrient bowl with nutrient soil, leave 1-1.5 cm on it, press it slightly, pour water, put in germinating seeds, put one seed per hole, cover nutrient soil, cover with plastic film, and buckle up on arch shed. After emergence, timely removal of plastic film to prevent burning seedlings. Pay attention to the choice of sunny ventilation, the temperature is maintained at 28-32 °C, the humidity is maintained at about 75%, watering should be carried out in the sunny morning, to master the principle of non-dry wet, not only to prevent water shortages, but also to prevent leggy. Seedling pest control, can be combined with watering. One week before colonization, seedlings were made into seedlings. Fourth, timely planting 1, site preparation, fertilization. Choose high-lying land, smooth drainage, sunny leeward fields, deep turning, fine hoeing, sloping, open up the ditch, 3,000 kg of farmyard manure with Mujishi, 25 kg of compound fertilizer, 10 kg of phosphate fertilizer, cooked vegetables 50 kg of seed cake, made good, 3 meters wide. 2, colonization. Seedlings grow to 2 leaves and 1 heart to colonize. It is advisable to adopt single row colonization with a row spacing of 3 meters and 0.4 meters, pouring enough water, and adding a certain amount of fungicide. V. Field management 1. Seedling period. Seedlings should be planted and supplemented with seedlings, and seedlings should be planted with seedlings of the same age as Daejeon. Attention should be paid to the prevention and control of underground pests such as ground tigers and mantle. 2, timely fertilizer. When the melon vines grow to 30 centimeters in length, the manure before the vines are crushed, the urea 10 kilograms, the compound fertilizer 5 kilograms, and the rapeseed cake 50 kilograms. 3, pruning, vine pressure. The use of two vine pruning, that is to retain the main side of the main vine and the vines of the autonomous vines, to stay in the main vines. Generally 3-5 times pressure vines, the squash stops squeezing. 4, water management. Extend the vine period, expansion of the melon period to promote, flowering fruit set period to be controlled. 5, stay in melon and on the mold. Artificial pollination can be conducted, leaving the second and third female flowers on the main vines at the 12-20 section to retain the melons. If the main vine does not sit on the melons, the second and third female flowers on the spare side vines can be selected. Stay melon. When the melon grows to the size of a fist, it can be treated with a die. The mould is a square glass container with a length of 40 cm and a width of 25 cm, which can be adjusted in size. Under the pressure of the mold, the watermelon becomes a square, and then the mold is appropriately widened. This can be performed 2-3 times, and the square watermelon with a uniform and melon shape can be grown. Remove the mold when the watermelon 7 matures, 8 mature harvest. 6. Pest control. Thiophanate can be used, carbendazim to prevent anthracnose, head blight, powdery mildew, wilt disease control with disease prevention, aphids can use a sweep of light, enemy kill control.

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