A biennial herb of the genus Muskmelon of the family Cucumis. Melon roots occupy a large range of soil volume. It is strong in drought resistance, sandy soil with good permeability, whether it can produce high quality, fertilization technology is the key. 1, need fertilizer characteristics Muskmelon needs large amount of fertilizer, absorption of nutrients for seedling absorption of least, after flowering, nitrogen, phosphorus, potassium absorption gradually increased, nitrogen, potassium absorption peak at 16-17 days after fruit set, fruiting 26-27 days dropped sharply . Phosphorous and calcium absorption peaks are 26-27 days after fruit set, and continue to fruit ripening. Flowering to the end of the fruit expansion period of about 1 month is the period when melons absorb most of mineral nutrients, and is also the maximum efficiency period of fertilizer. Calcium and boron not only affect the sugar content of fruit, but also affect the appearance of the fruit. When calcium is insufficient, the surface of the fruit is coarsely textured and whitened, and when the boron is deficient, the flesh tends to appear brown spots. Muskmelon is a bogey crop and should not be applied with fertilizers such as ammonium chloride and potassium chloride. 2, fertilization points 1 open melon melon fertilization: Melon requires continuous supply of nitrogen, phosphorus and potash during the growing season. The ratio of nitrogen, phosphorus and potassium absorbed by the three elements is about 2:1:3.7. For every 1000 kg of melon produced, 2.5-3.5 kg of nitrogen, 1.3-1.7 kg of phosphorus, and 4.4-6.8 kg of potassium need to be absorbed. The maximum amount of fertilizer was absorbed during the result period. The absorption peak of nitrogen and potassium fertilizers was 16-17 days after sitting melon, and the absorption peak of phosphate fertilizer was slightly later. The excessive application of nitrogen at the early stage of fertility will cause the melon to grow. When the fruit is near maturity, nitrogen will be applied too much, which will affect the increase of sugar content. Therefore, the nitrogen fertilizer should be mainly long-acting and slow-effect fertilizer. Phosphate fertilizer and potash fertilizer play an important role in promoting fruit quality and early maturation. Phosphorus and potassium fertilizers should be added during the fruiting period. Melon is sensitive to calcium, magnesium, boron and other elements and should be applied as appropriate. In continuous plots, the application of trace elements should be considered. The types of fertilizers should be dominated by high-quality organic fertilizers rich in phosphorus and potassium, such as oil cake fertilizers, fish fertilizers, human feces, chickens and duck manure. Mainly based. 2 base fertilizer All of them were applied during ploughing and soil preparation. The application amount accounted for 1/3 to 2/3 of the total fertilization amount, and 2500-3000 kg of high-quality chicken manure or pig manure was applied per acre, and fine manure such as human excrement was 500-1000 kg. Dose application or acupoint application. In addition, based on calcium superphosphate effect is better, generally 25-50kg Mushi. 3 top dressing General ammonium ammonium sulfate or red fertilizer 50 ~ 100kg. Seedling stage, after picking the heart 1 times each, the period of the melon period is 1 to 3 times. As fecal material type, quick-acting fertilizer such as human feces and urine can be used, and water can be diluted 3 to 5 times and poured. 4 Protect melons with fertilization: In addition to the basic facilities in the protected area, you can sit in the melon (the egg is large), combined with the ditch watering, follow the water to recover urea and potassium dihydrogen phosphate, apply 20 kg of urea per mu, 20 kg of potassium dihydrogen phosphate. If it is covered with mulch, the plants will grow faster in the early stage and require more water and fertilizer. Some fertilizers can be added to the base fertilizer, such as 10kg of urea, 40kg of phosphate fertilizer, application or spreading. It is practically feasible to increase the input value of the planting of melons in protected areas. In order to increase early yield, ethephon can be sprayed once at the second true leaf and the fourth true leaf at a concentration of 100 ml/L. This helps to increase the female flower and the average single fruit weight, and it can also increase the pulp thickness. , increase soluble solids and vitamin C content. In order to improve the squash rate of the head lice in the early spring, it can be sprayed with 2.5 g/kg guarunth even when the female flowers are open or about to open. When the young melon eggs are large, then use 1.5ml/kg gibberellin to smear the stalks 1 times to promote young fruit growth. After the fruit is basically long enough, the surface of the fruit is sprayed with 500-1000 mg/kg of ethephon to allow early harvest without affecting the flavor. Horse Mackerel,horse mackerel fish,dried horse mackerel,Fresh Horse Mackerel Zhoushan Boda Aquatic Products Co.,Ltd , https://www.baida-aquatic.com