Pumpkin watering and fertilization techniques

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.