Peach fruit matures earlier and takes longer time from fruit picking to leafing. This time, it is a critical period for peach nutrient accumulation. The key to management during this period is to maintain the photosynthesis of leaves and prevent early leaf loss. "The management of this period has a direct impact on the quality of flower bud differentiation and the cold resistance of the tree and the growth results in the coming year," said Li Xin, professor at the Plant Protection College of Northwest Agriculture and Forestry University.
Scientific fertilization and reasonable watering
The roots of fruit trees are the organs for absorption and storage of nutrients, and timely fertilization is beneficial to the sustainable increase of fruit trees in the coming year. How to fertilize scientifically? Li Xin suggested that it is more appropriate to use circular or radial fertilization. The main approach is to dig a tree tray about 40 cm deep below the circumference of the canopy, which is dominated by farmyard manure. Phosphorus, potassium, and trace fertilizers can be mixed, and Mushi is generally used. 100 kg is best. "Farming should pay attention to less root damage, and timely watering after fertilization." Li Xin reminded farmers, foliar spray fertilizer can use 5% urea or 0.3% to 0.5% of potassium dihydrogen phosphate, spray once every 10 days , continuous 2 or 3 times.
Peach fruit harvested in the event of rain in more weather may not need to water, if the drought is too long, you can fill the water, as appropriate, while doing a good job of drainage flood control, cultivator weeding, to prevent soil compaction, in the soil freeze before pouring frozen Water once.
Pay attention to pruning to ensure that flower buds are well formed
After fruit harvesting, special attention should be paid to fruit tree pruning, maintaining a good tree shape, making the tree airy and transparent, and promoting photosynthesis to ensure the formation of flower buds. Li Xin said that we must first eliminate the misshapen branches such as dense branches, diseased and diseased branches, overlapped branches, and thin and weak branches to ensure sufficient lighting conditions. “The upright backbone branches soften the open angle and ease the tree potential. The growth space is softened or twisted to control its growth. As a result, the sagging shoots can be properly retracted to reduce nutrient consumption. Long fruiting branches can be cut short and cultivated into compact fruiting groups.â€
In addition, cultivating tillage after removing the fruit should remove the orchard weeds. "The depth of cultivator is usually 5 cm to 10 cm. It is best to clean the orchard once after the leaves fall. The deciduous weeds will be buried under the trees." Li Xin suggested.
Prevent pest damage
After the fruit is harvested, special attention must be paid to the prevention and treatment of diseases and insect pests such as peach leeches, leaf miners and spider mites. For fluidic diseases, Li Xin suggested that branches should be avoided as much as possible by mechanical damage. After flowing gum, they can be promptly scraped off. Use quicklime, lime sulfur, salt, vegetable oil plus appropriate amount of water to form a protective agent, apply the affected area or cut. The mouth can be. For pests, choose 50% carbendazim 800 to 1000 times, or 50% mancozeb 800 times, plus 25% of the pyrethroids and other pyrethroids for control, spraying 2 times .
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