Potato fertilization new technology essentials

After the flowering of the potato, the rhizosphere topdressing is generally not carried out. In particular, the nitrogen fertilizer cannot be applied in the rhizosphere. Otherwise, the improper fertilization will cause the stems and leaves to grow, hinder the formation of tubers, delay the development, and easily produce small potatoes and deformed potatoes, and the dry matter content is reduced. Susceptible to late blight and scab. After the flowering of the potato, the phosphorus and potassium fertilizers are mainly applied by foliar spraying. The spraying of 0.3%~9.5% potassium dihydrogen phosphate solution 50 kg/mu every 8~15 days is carried out continuously for 2~3 times. It should be mixed with light and nutrient film fertilizer to help plants absorb a lot of light fertilizer, light energy, light, compatible with conventional fertilizers and nutrients to supply plant growth and development to the limit. Potato is a high-yield potassium-producing crop. The ratio of demand for nitrogen, phosphorus and potassium is 2:1:4. Therefore, 10 kg of potassium sulphate per mus is applied during the potato-promoting period. Immediately after fertilization, the soil is ridged and soiled. Spirit can activate plant ecological growth positive energy, broaden plant conduit path, enhance plant water absorption and fertilizer absorption, and improve fruit yield and quality
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