How to grow watermelon
As a summer-cooling sacred product, watermelon planting technology and nutritional efficacy have attracted much attention. From seed selection to field management, scientific cultivation methods directly affect fruit quality; and water-rich flesh contains multiple health values. The following will systematically analyze watermelon cultivation techniques and dietary effects. The first step of success is to select and cultivate high-quality varieties with plump seeds and strong disease resistance. After soaking seeds in warm soup at 55℃ for disinfection, the gradient germination method is used: first wrapped in moist gauze and sun for 2 hours, and then transferred to an incubator at 30℃ for 36 hours. The germination rate can be increased by 40%. It is recommended to use a mixed substrate of peat soil: perlite: decomposed manure =5:3:2 to ensure a balance between water permeability and fertility. Intelligent environmental control management When sowing, the bud end is tilted downward by 45 degrees, and the covering soil thickness is accurately controlled by 2 cm. Double-layer covering technology is adopted-the bottom film is used to preserve soil moisture, and the outer arched shed is used to adjust the temperature to maintain an ideal environment with a daily temperature of 28-32℃/a night temperature of 18-22℃. The soil moisture is maintained at 70% during the seedling period, drip irrigation technology is used to accurately replenish water during the extension period, and amino acid water-soluble fertilizers are used to promote root development. The full-cycle water and fertilizer management plan is managed according to the principle of "control before and promotion after planting": control water in the early stage to prevent excessive growth, and increase phosphorus and potassium fertilizers during the fruiting period. It is recommended to use special fertilizer with N-P-K=12-15-20, combined with calcium and magnesium foliar fertilizer to prevent fruit cracking. Control water and increase sugar 15 days before ripening, and cooperate with fruit turning operation to ensure uniform coloring. In-depth analysis of the nutritional value of watermelon The natural water replenishment and the electrolyte reservoir contain 92% water content combined with minerals such as potassium and magnesium make watermelon a good electrolyte supplement after exercise. The potassium content per 200g of pulp reaches 320mg, which effectively regulates body fluid balance and relieves the symptoms of dehydration in summer. The cosmetic antioxidant active ingredient citrulline promotes collagen synthesis, with a lycopene content of 4532μg/100g, and its free radical scavenging ability is 100 times that of vitamin E. Clinical data shows that continuous consumption for 28 days can increase skin water retention by 23%. Medicinal value Development and application of watermelon cream lozenge has a cure rate of 89% for oral ulcers, and its active ingredient cucurbitacin can promote mucosal repair. In recent years, studies have found that watermelon extract can inhibit alpha-glucosidase activity and help regulate postprandial blood sugar.
From the field to the table, watermelon planting technology innovation and nutritional research continue to make breakthroughs. Mastering scientific cultivation methods can increase yield by more than 30%, and in-depth understanding of its nutritional components can achieve the combination of food and nutrition. Growers are recommended to adopt standardized production processes. Consumers should eat 200-300g per day to fully obtain this summer health gift.