Peach tree early high yield fertilization technology

    (1) Fertilization before planting According to the summary of the early high-yield technology of Chinese peach trees, 75 tons of farmyard manure per hectare is mixed with 750 kg of superphosphate and 450 kg of potassium sulfate before the construction, and it is applied to the Dingzhi points and then filled. Into the topsoil, and mix with the fertilizer, ready to colonize.

When planting, use 50 liters of water plus 1.5 kg of superphosphate and earth to make a slurry, and the roots of the peach seedlings are filled with mud and then planted. This will not only improve the survival rate, but also make the seedlings grow strong and lay a good foundation for the flowering results .

　　 (2) Application of base fertilizer The base fertilizer of peach tree is mainly based on farmyard manure. Each mature peach tree is applied with 30-50 kg of farmyard manure , and should be combined with deep-turning to change soil. Summer Summer using a method or cyclic, Goushen 40-50 cm, 50 cm wide, depending on channel length and tree size depending on how many fertilizers. After the farmyard manure is applied, the topsoil is filled, the topsoil is mixed with the fertilizer, and the subsoil is covered thereon, which is slightly compacted. It is best to combine irrigation after applying fertilizer. The fertilization period is better in late autumn or early winter. For example, early application of base fertilizer should be as early as possible. When the soil temperature is stable at 4-5 °C, the roots of the peach tree begin to move; the soil temperature rises and the root activity accelerates. If you do not pay attention to protecting the root system when digging the fertilization ditch, a large number of roots will affect the absorption of the root system.

Generally, the amount of nitrogen fertilizer in peach trees is 0.23-0.45 kg per plant , which is equivalent to 0.5-1 kg of urea . The application rate of saplings should be reduced, and then the annual increment of nitrogen is 0.056 kg, which is equivalent to 0.12 kg of urea until the nitrogen is added. After 0.45 kg, it will not continue to increase. 1/2 of the growth period and manure nitrogen fertilizer base fertilizer mix cooperation, top dressing for the other half. Phosphorus and potassium fertilizers are mixed with farmyard manure as base fertilizer. Phosphorus and potassium fertilizer nitrogen in an amount, based by nitrogen, phosphorus and potassium ratio of 1: 0.6: 1 ratio is calculated. If you do not use a single chemical fertilizer and use compound fertilizer ( must be a ternary compound fertilizer ) , then 1/3 of the amount of base fertilizer, and 2 / 3 for top dressing.

　　 (3) Application of top dressing On the basis of the application of base fertilizer, 1/2 of the total amount of nitrogen fertilizer is used as top dressing. 1 before and after application of each flower and physiological drop, the total amount of fertilizer nitrogen half and 1/4. Fertilizer should be applied with a respective front views and rear flower physiological drop, the total amount of each fertilizer 1/3.