Pumpkin nutrient management technology

(1) Basal fat. The purpose of applying basal fertilizer is to meet the nutrient requirements of the whole growing season of the pumpkin. Basal fertilizer is dominated by organic fertilizers, combined with nitrogen, phosphorus and potassium compound fertilizers. The amount of fertilizer generally accounts for 1/3--1/2 of the total amount of fertilizer, 3000-4000 kg of organic fertilizer is applied per acre, and all or most of the phosphorus and potassium fertilizers are used as basal fertilizers, and they are mixed with organic fertilizers and applied to the soil layers. In the case of insufficient organic fertilizer, nitrogen, phosphorus and potassium compound fertilizer 15-20 kg per mu. When the fertilizer is used at a large amount, submerged application is combined with deep plowing. When there is less fertilizer, in order to increase the fertilizer utilization rate, it is possible to use a centralized ditch or a hole. (2) Dressing. Nitrogen is the main nitrogen fertilizer during the seedling stage, which aims to promote seedlings. Generally, 5-8 kg of nitrogen are applied per mu. In the result period, nitrogen, phosphorus, and potassium fertilizers need to be added in time to facilitate full expansion of the fruit. Generally after the fruit set, apply 10-15 kg per acre and potassium sulfate 5--10 kg. During the middle and late stages of pumpkin growth, the ability of roots to absorb nutrients weakens, and extra-root fertilizer can be used to meet the nutrient supply needed for plant growth. Generally use 0.2% - 0.3% urea, 0.5% - 1% potassium chloride, 0.2% -0.3% potassium dihydrogen phosphate, spray once every 7-10 days, continuous spray 2-3 times. Http://

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