Fertilization technology of peach

Peaches originated in China, widely cultivated, delicious fruit, suitable for both young and old. In addition, it is rich in carotene, which is a better way for children to supplement nutrition. There are many kinds of peaches, and there are different series of varieties in different periods. It can fully meet the needs of the four seasons in the market. The management and maintenance of peach trees during planting is very important, in which fertilization is the main focus. Today we will talk about how fertilization should be done in each growth period and what skills there are.

First, fertilizer requirements

Peach trees can adapt to grow in general land, but the acid soil is better, but too low and too high affect the growth. Fertile sandy loam with good permeability is the best, if the clay is too heavy, it is easy to delay the result.

Peach roots are mostly distributed shallowly, to prevent the root system from floating, fertilization should be applied deeply. Peach trees store nutrients a few weeks before flower bud differentiation, so fertilizing should be strengthened after fruit picking.

Young trees grow faster, but they should be fertilized mainly with phosphorus and potassium fertilizer and less nitrogen fertilizer, because it is easy to delay flower bud differentiation and bear fruit later. In the full fruiting period, a large amount of nitrogen fertilizer is needed to stabilize the tree potential to coordinate the blooming and fruiting nutrition demand, and nitrogen fertilizer and potassium fertilizer are the main fertilizers.

2. Fertilization technology

1. Base fertilizer

Used one month before the defoliation of the tree, or applied after fruit harvest, it is generally mainly organic fertilizer, nitrogen fertilizer can be applied according to the size of the tree, accounting for about 50% of the annual fertilizer application, and the amount of fertilizer applied per adult peach tree is equivalent to 0.3-0.6 kg of pure nitrogen. Potash fertilizer is about 20%, and the amount of potash fertilizer applied is equivalent to 0.25-0.5 kg of pure potassium oxide. Application should not be too close to the tree, it is easy to burn roots.

two。 Flower-promoting fertilizer

Used before flowering in spring, mainly nitrogen fertilizer, accounting for about 10% of the annual fertilizer application, combined with irrigation. The amount of nitrogen fertilizer per mu is about 5 kg in terms of pure nitrogen, about 5-10 kg of urea or 10-30 kg of ammonium bicarbonate. If the amount of base fertilizer is sufficient, flower-promoting fertilizer can be applied less or not.

3. Fruit fertilizer

The application of fruit setting fertilizer after flowering to before hard seed is mainly used to increase tree nutrition, protect flowers and fruits, and promote fruit setting and fruit growth. Give priority to nitrogen fertilizer, auxiliary a small amount of phosphorus and potassium fertilizer. The application accounts for about 10% of the annual application, and the amount of nitrogen fertilizer per mu is about 5 kg of pure nitrogen, which is about 3-9 kg of urea.

4. Fruit expansion fertilizer

When applied after the second rapid growth period of fruit, fertilization was carried out at the same time during fruit expansion and flower bud differentiation. The fruit expansion fertilizer is mainly nitrogen and potassium fertilizer, and an appropriate amount of phosphorus fertilizer can be added. The amount of fertilization accounts for about 20%-30% of the annual application, and the amount of nitrogen fertilizer per mu is 4-9 kg in terms of pure nitrogen, which is about 8.6-20.8 kg of urea. Potash fertilizer application per mu of potassium oxide 5-15 kg is about 50% potassium sulfate 12-30 kg. It can also be added with 10-30 kg of superphosphate.

Peach fertilization is generally divided into different periods, so it is necessary to apply fertilizer according to the needs of different situations in each period, according to the fertilizer characteristics of peach trees, which can ensure the smooth growth and development of each stage. With the increase of a certain yield, the results of control appeared the phenomenon of big and small years.