What is the amount of fertilizer per peach after three years?

The main nutrient requirements of peach trees: the need for three elements of peach trees is mainly nitrogen and potassium, and the amount of phosphorus required is small.

(1) Nitrogen: The growth of new shoots of peach trees is large, the fruit is large, and it is sensitive to nitrogen. The excessive nitrogen in the initial results of young trees is likely to cause new shoots to delay and delay the results, and increase the physiological fruit drop. the amount. As the age of the tree increases and the yield increases, the amount of nitrogen required also increases. When nitrogen is insufficient, the growth of new shoots is small, and the branches are thin and short, which affects flower bud differentiation. At the same time, the fruit is small, the color is poor, the quality is low, and the cold resistance of shoots and shoots is decreased.

(2) Phosphorus: Peach requires less phosphorus than nitrogen and potassium. The main function is to make pollination and fertilization good, increase the amount of candy in the fruit and promote the formation of flower buds. In the absence of phosphorus, the fruit is dull, the flesh is soft, the taste is sour, and the fruit sometimes has spots or cracks.

(3) Potassium: Peach requires more potassium. When potassium is sufficient, the fruit is large, and the sugar content is high. When potassium is deficient, the fruit is small, deformed, premature, and the leaves are grayish green.

2. Fertilization amount: The suitable fertilization amount and the ratio of nitrogen, phosphorus and potassium in peach trees should be comprehensively analyzed and determined according to factors such as variety, tree age, tree potential, yield, soil fertility, fertilizer properties and climatic conditions. Generally, for every 100 pounds of fruit produced, 50-100 kg of base fertilizer, 0.4 kg of pure nitrogen, 0.3 kg of phosphorus and 0.5 kg of potassium should be applied.

3. Fertilization period and method

(1) Base fertilizer: peach is good for autumn. Combined with the autumn turn before and after the fall leaves. The fertilization method is preferably applied to the radiation ditch or the ditch, and the depth is about 40 cm.

(2) Topdressing: Generally, Taoyuan is topdressing 2-3 times a year, with quick-acting nitrogen fertilizer as the main factor, combined with phosphorus and potassium fertilizer. High-yield gardens have more than 5 times of topdressing. The method of topdressing has grooves, annular grooves and acupoints.

1 Top dressing before germination: Spring soil is frozen and applied 1-2 weeks before germination. Promote the growth of roots and shoots, ensure good flowering and fertilization, increase the fruit setting rate, and mainly use quick-acting nitrogen fertilizer.

2 Top dressing after flowering: 1-2 weeks after the flowering, it can promote the growth of new shoots and fruit growth, and reduce fruit drop. Based on quick-acting nitrogen fertilizer.

3 hard-core top dressing: generally applied in mid-June. This top dressing can promote embryo and nuclear development, germination and differentiation, fruit enlargement and lay the foundation for the results. It should be applied in combination with nitrogen, phosphorus and potassium.

4 fruit swelling and topdressing: For medium and late-maturing varieties, nitrogen fertilizer is mainly used together with potassium fertilizer to promote fruit expansion and improve quality.

5 Topdressing after harvesting: Applying fertilizer after harvesting can supplement tree consumption, strengthen nutrient accumulation in autumn, and improve wintering ability. Phosphorus and potassium are mainly combined with nitrogen fertilizer.

At the same time, the germination water, the frozen water, and the watering after the top dressing should be guaranteed throughout the year, and the water trees should be watered at any time according to the fruit trees. At the same time, you should pay attention to drainage during the rainy season.

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