The peach fruit series products are popular with 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 potassium fertilizer In the three elements of nitrogen, phosphorus, potassium, mature peach trees in the anniversary of the absorption of potassium, especially the formation of fruit, 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 autumn, 90% of the potassium fertilizer was applied to the base fertilizer, and the leaves were sprayed with potassium dihydrogen phosphate three to four times.
Second, to carry out a pruning cut with a happy shape trimming happy shape, more conducive to improving the ventilation and light conditions, improve the appearance of fruit quality. Peach is easy to grow buds, branches, 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 on the use of three times the drug:
(1) The pesticides used to control the pests such as aphids, peach aphids, leaf curlers, leaf miners, red spiders, leaf perforation, rotten fruit and so on must be sprayed before and after the peaches are harvested. The fungicides used must have multiple bacteria. Ling (50% carbendazim 800 to 1000 times), this is the key to "hairless" of peach.
(2) In the late period of fruit growth, in combination with the prevention and control of diseases and insect pests, there must be spray grams (80% to 80% of spray g) in the fungicide when used to facilitate the smooth and hairless appearance of the peach skin.
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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