The peach fruit series products are favored by consumers because of their large size, small size, juicy juice and sweet taste. In recent years, with the development of nectarine varieties, the fruit quality of the peach fruit series has affected the appearance quality due to the hairiness of the fruit skin, and its development has been affected to a certain extent. In order to overcome the shortcomings in the appearance quality of peach fruit, we conducted several tests on nectarine varieties such as Yuhualu, Golden Peach, Okubo, Hangzhibai and Qiufengmi. We summarized a set of methods to reduce hairiness on the surface of the peach peel. In order to improve the appearance of fruit quality cultivation management technology.
First, pay attention to the application of potash fertilizer
In the three elements of nitrogen, phosphorus, and potassium, the uptake of potassium is greatest in mature peach trees, especially in the formation of fruits, and potassium is indispensable. Potassium has an irreplaceable effect on the sugar content and the pigment formation in the fruit, which directly affects the intrinsic quality and appearance quality of the fruit. Therefore, attention should be paid to the application of potassium fertilizer on fertilization, reaching more than 1.1 kg of potassium (0.5 kg of phosphorus and 1 kg of nitrogen) for 100 kg of fruit. After the autumn, 90% of the potassium fertilizer was applied during the application of base fertilizer, and the leaves were sprayed with potassium dihydrogen phosphate 3 to 4 at the same time.
Second, with a happy shape pruning
Happy shape trimming is more conducive to improving ventilation and light transmission conditions and improving the appearance of fruit quality. Peach trees are strong in polarity, strong in light, and easy to germinate on long branches and back branches. Pay attention to summer pruning and timely remove sparse branches, leggy branches, and dense branches.
Third, attach importance to the use of three drugs
In the prevention and control of pests and diseases, we attach importance to the use of three rounds of medicines: (1) Pharmaceuticals for controlling insect pests and diseases such as aphids, peach aphids, leaf curl insects, leaf miners, red spider mites, leaf perforation, and rotten fruit diseases before and after wheat harvest The bactericide to be applied must have carbendazim (50% carbendazim 800 - 1000 times), which is the key to "hairlessness" of the peach. (2) In the late growth period of fruit, combined with the prevention and control of diseases and insect pests, there must be spray grams (80% spray grams 800-1000 times) in the fungicide to facilitate the smooth skin of the peach fruit "hairless". Based on the management of peach trees, we focus on the above three aspects of the technical application. The fruit of the peaches produced is nearly "gray-free", which improves the fruit quality of the peaches.
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