First, watering
    Pumpkin roots are strong, with strong water absorption and drought resistance. The pumpkin leaves are large and many, and the transpiration is strong, so it is necessary to irrigate in time to obtain high yield. 1 week after planting Huanmiao pouring water, to promote the growth of foliage; fruit pouring 1 after swelling fruit water. In the future, according to the climatic conditions, water is properly watered to ensure fruit development. After the fruit is fully grown, water is properly controlled to promote the accumulation of dry matter and improve the quality of the pumpkin.
   Second, fertilization
    It should be based on the fertilizer characteristics of the pumpkin. The growth period of pumpkin is different, and the absorption of nutrients is also different. The growth of pumpkin in seedling stage is very small, and the amount of fertilizer required is also small. The absorption of nitrogen in the fruit expansion period increases sharply, and the absorption law of potassium and nitrogen is basically the same. The amount of phosphorus absorbed is less increased. Miyazaki, Japan Agricultural Experimental Study data, pumpkin seedlings pulled from planting to 137 days, 1/3 of the amount of time to absorb nitrogen, phosphorus, potassium, calcium, magnesium increases slowly, rapidly growing middle third of the time In the last 1/3 of the time, the growth was most significant. The absorption of nutrients by pumpkin during the whole growth period is highest in potassium and nitrogen, followed by calcium, magnesium and phosphorus. Per 667 square meters produced 4308 kg pumpkin, 20.5 kg for an absorption of nitrogen, phosphorus pentoxide 6.9 kg, 25.1 kg potassium. The specific fertilization requirements are as follows.
   1 base fertilizer. Mainly organic fertilizer, combined with nitrogen, phosphorus, potassium compound fertilizer. There are other common basal manure, compost or manure, a larger amount, the total amount of fertilizer is generally 1 / 3-1 / 2, 667 square meters per organic fertilizer 3000-4000 kg. Phosphorus, potassium or most of all as a basal fertilizer, and mixed with organic fertilizer is applied into the soil together, is less than in the case where an organic fertilizer per 667 square meters up nitrogen, phosphorous and potassium fertilizer 15-20 kg. The base fertilizer has two methods of application and concentrated application. When the applicator is generally carried out in conjunction with deep, evenly spread after manure or fertilizer, with a sliding plow spiro harrow repeated 2 times to uniformly mixed with the soil fertilizer. When there is less fertilizer, it is generally applied in a ditching concentrated strip to apply the fertilizer in the sowing line.
   2 topdressing. Topdressing is mainly based on quick-acting nitrogen fertilizer, combined with application of phosphate fertilizer and potassium fertilizer. The amount of topdressing generally accounts for 1/2 -2/3 of the total fertilization amount . When topdressing, it should be carried out in batches according to the different amounts of nitrogen, phosphorus and potassium required for different growth stages of pumpkin. In the seedling stage, the topdressing is mainly based on nitrogen fertilizer, and the purpose is to promote the emergence of seedlings. 5-8 generally well-urea per 667 square meters jin. In the result period, not only need to supply sufficient nitrogen fertilizer, but also timely supplementation of phosphorus and potassium fertilizer to ensure the full expansion of the fruit. Generally, after fruit setting, 10-15 kg of urea is applied per 667 square meters , and 5-10 kg of potassium sulfate is applied , and 2-3 times are applied. At the time of top dressing, attention should be paid to the position. The seed dressing should be applied close to the base of the plant. When entering the fruiting stage, the position of the top dressing should gradually move to both sides of the sputum. In calcareous soil Upper nitrogen fertilizer should follow the principle of fertilization for deep application of soil, especially ammonium bicarbonate. It must be applied more than 6 cm deep to avoid the volatilization of fertilizer and reduce fertilizer efficiency. Chemically stable nitrogen fertilizers such as ammonium sulfate and urea can be applied Fill the water for topdressing. In the middle and late stages of pumpkin growth, the ability of roots to absorb nutrients is weakened. In order to ensure the growth and development of pumpkins, the roots can be supplemented by root dressing. Spraying fertilizer available 0.2% - 0.3% urea, 0.5% to 1% chlorine fertilizer, 0.2% -0.3% potassium dihydrogen phosphate, typically spraying every 7-10 days, several fertilizer can be alternately administered , even spray 2-3 times.Ningbo GDoor automatic revolving doors mainly include two-wing Automatic Revolving Door, three-wing automatic revolving door, four-wing automatic revolving door and all glass automatic revolving door. According to the way the automatic revolving doors revolve, it can be divided into two catalogues: two-wing automatic revolving door and three/four-wing automatic revolving door. Two-wing automatic revolving door combines Automatic Sliding Door and automatic revolving door, satisfying various customer demands. Ningbo GDoor automatic revolving door is ideal for hotels, hospitals, conference centers, exhibitions, office building, etc..
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