Pre-fertilizer: The temperature rises after the beginning of spring. When the temperature reaches a suitable temperature, the activity of microorganisms and peach roots in the soil is accelerated, and the demand for nutrients increases gradually. Therefore, to apply sufficient bud pre-fertilizer, generally 15 days before the beginning of spring application, this can make up for the problem of insufficient fertilization or no fertilization after fruiting. It can also timely supplement the lack of nutrients in peach trees. Generally, each plant applies 0.5 kg of nitrogen, 0.3 kg of potassium, and 0.2 kg of phosphorus, which can be mixed with composted excrement to make top dressing.
Fertilizer before flowering: Peach trees need sufficient nutrients for flowering to ensure that the root system is well developed and the branches and leaves are lush, so that young trees, young fruits and new shoots grow normally, so that the aged trees glow with “youth†foliage and germinate quickly and grow healthily. Therefore, fertilizer should be applied before flowering. The fertilization should be carried out 15 to 20 days before flowering. Nitrogen fertilizer should be used as the main fertilizer. 0.5 to 1 kg of nitrogen fertilizer and 0.25 kg of boron fertilizer can be applied to each plant. Attention must be paid to the mixing of farmyard fertilizers.
Peach kernel fertilizer: When the peach kernel is formed, the embryo grows faster and the absorption of nutrients by the fruit gradually increases. At this time, the peach tree grows vigorously and requires a large amount of fertilizer. Fertilizer should be added in a timely manner. This time should be dominated by total potash fertilizer, supplemented by nitrogen and phosphate fertilizers, and NPK combined with farmyard fertilizers should be applied. Generally, 0.3 to 0.5 kg of potassium chloride is applied to each peach plant.
Before and after harvesting fruit: 15 to 20 days before fruit picking, the speed of fruit enlargement is accelerated. Potash fertilizer can effectively increase peach yield and fruit quality. According to the test: 0.15 kg of potassium fertilizer is required for every 50 kg of fruit produced. After fruit harvesting, peach trees completed a production process and consumed a lot of nutrients. At this time, nitrogen and phosphorus fertilizers should be used as the main nitrogen fertilizer. About 1.5-2 kg of nitrogen and 1 to 1.5 kg of phosphate fertilizer should be applied to 50 kg of fruit to promote root development. To make the tree adequate nutrition, leaves and leaves to enhance the wintering ability.
Foliar fertilizer: peach trees from the exhibition of leaves until the deciduous before the 20 days, such a long time can be applied leaf fertilizer, fertilizer and fertilizer applied to the foliar fertilizer, quick effect, but also combined pest control and disease prevention, implementation outside the foliage For fertilization, boron, zinc, manganese, and potassium are preferably used. Spraying is performed on sunny days. The amount of boric acid is 0.1 to 0.25%, zinc sulfate is 0.1%, manganese chloride is 0.25 to 0.3%, and potassium dihydrogen sulfate is 0.3 to 0.5. %, ferrous sulfate 0.2 to 1%, the soil thin place can be appropriately increased.
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