Peach trees have early results and short life spans, which are more resistant to apple trees and pears. The peach shoots grow rapidly, the foliage is luxuriant, the fruit is hypertrophied, and it is sensitive to nitrogen. Excessive nitrogen application in saplings, saplings, and initial fruit trees can cause long and delayed results, so the amount of nitrogen fertilizer should be properly controlled. Adult trees have more results and consume more nutrients. They must supply sufficient fertilizer to prevent premature aging.
Peach trees have a large demand for potash, and potassium is important for fruit growth. Potassium fertilizer is sufficient, the fruit is large, the sugar content is high, the flavor is strong, the color is bright, and when potassium is deficient, it is first reflected in the fruit size. Peach requires less phosphorus. When phosphorus is deficient, the color of the fruit is dark, the meat is soft, the taste is sour, and the quality is degraded. For every 100 kilograms of peach produced, 0.48 kilograms of nitrogen is required, 0.2 kilograms of potassium and 0.76 kilograms of potassium. The absorption ratio of nitrogen, phosphorus and potassium is generally 1:0.42:1.58.
The roots of peach trees begin early in the spring, and the germination fertilizer should be started sooner or later, usually around 2 weeks before germination. In order to supplement the lack of nutrients in the tree in the previous year, the flowering is neat, the fruit setting rate is increased, and the leaf area is enlarged and the growth of the new shoots is promoted. Fertilizers are mainly available nitrogen fertilizers, generally 0.4 kg to 0.6 kg of urea per plant (or 0.8 kg to 1.2 kg of ammonium sulfate). The fertilization method can be carried out by ditch application or hole application, that is, digging an annular groove or several fertilization points around the canopy, the depth is 10 cm to 15 cm, and the soil is covered after application.
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