Fertilization technology of winter melon

　　 1. Base fertilizer Winter melon has a long growth period and the peak period of fertilizer absorption is also long. The application of base fertilizer should be paid great attention to. The base fertilizer should be based on high-quality organic fertilizer with comprehensive nutrition and long supply time. Winter melon base fertilizer is generally applied to a quality of more than 5,000 kilograms per 667 square meters . The application of the base fertilizer can be combined with the preparation of the ground, and some places can be applied after the whole. The amount of base fertilizer applied to winter melon is high, especially organic fertilizer, which must be fully decomposed to avoid damage to the root system. In the northern region, winter melon land should be ploughed and sun-dried before winter, and then organic fertilizer should be added to re-cultivate and knead. After sufficient fermentation with cake fertilizer or oil residue as base fertilizer, it can be mixed with superphosphate before mixing. After the hole. In areas with less base fertilizer, it can be applied by ditch or acupoints; there are more base fertilizers, preferably half of them are applied, and half of them are applied.

　　 2. Topdressing and topdressing are also important for the growth and yield formation of winter melon. In the southern region, the topdressing fertilizer is mostly diluted with dung water, while in the north, the fully-fertilized high-quality manure and quick-acting fertilizer are used, and the whole growth period is applied 2-3 times. Nitrogen, phosphorus and potassium composite quick-acting fertilizers were dominant in the early stage . The melon seed season is different due to different cultivation methods. Most of the melons are cultivated live, and when the bottom fertilizer is sufficient, it is not necessary to prescribe the first time. In the southern region, after the third true leaf is flattened, the northern region is mostly in the fifth to sixth true leaf stage for the first top dressing. The vine season is generally applied to the vines about 1 meter long and 2 meters each, and the purpose is to promote the growth of stems. The fourth top dressing is in the flowering result period. This fertilization is very important for the growth of winter melon. It is usually carried out after the melon is sitting, to prevent falling flowers and fruit, and the nitrogen, phosphorus and potassium fertilizers should be complete. Winter storage melon, especially the large fruit variety melon, stops the supply of fertilizer and water 10-15 days before harvesting, in order to reduce the moisture in the melon and increase the storability. The topdressing of winter melon should be based on the principle of less before and after, generally before the vines, the amount of topdressing accounted for about 30 %, and the flowering result period accounted for 70 %. Fertilizer or fertilizing banding appropriate to 667 square meters per total of 45 kg of urea, superphosphate 50 kg, 25 kg of potassium sulfate, regional conditions, fertilizer can also be used organic fertilizers (e.g. soybean meal, per 667 square meters 75 kg, 4000 kg of dilute water .)