Cultivation techniques of hairless peach

Mao peach series of fruits are deeply loved by consumers because of their large size, small stone, juicy, sweet taste and other advantages. In recent years, with the development of nectarine varieties, the appearance quality of peach fruits has been affected by the furry skin of the fruit, and its development has been affected to some extent. In order to overcome the shortcomings of the appearance quality of hairy peach, we conducted many experiments on hairy peach varieties such as Yuhua dew, golden peach, Okubo, Diaozhibai, Qiufengmi and so on. A set of cultivation and management techniques were summarized to reduce the hairs on the peach pericarp surface and improve the appearance quality of the fruit.

First, attach importance to the application of potash fertilizer

Among the three elements of nitrogen, phosphorus and potassium, the annual absorption of potassium by adult peach trees is the most, especially in the formation of fruit, potassium is indispensable. Potassium plays an irreplaceable role in the formation of sugar content and pigment in the fruit, and directly affects the internal quality and appearance quality of the fruit. Therefore, we should pay attention to the application of potash fertilizer in fertilization, reaching 100 kg fruit to implement more than 1.1 kg of potassium (0.5 kg of phosphorus, 1 kg of nitrogen). After autumn, 90% of the amount of potassium fertilizer was applied when applying base fertilizer, and the leaves were sprayed with potassium dihydrogen phosphate for 4 times.

Second, plastic surgery with happy shape

Heart-shaped pruning is more beneficial to improve the ventilation and light transmission conditions and improve the appearance quality of fruits. Peach trees are easy to sprout and grow branches on their backs. Should pay attention to summer pruning, timely thinning back branches, only long branches, too dense branches.

Third, attach importance to the use of three times of medicine.

Pay attention to the use of three times of medicine in the prevention and control of diseases and insect pests: (1) spray once before and after wheat harvest to control aphids, peach borer, leaf rollers, leaf miners, red spiders, leaf perforation, fruit rot and other diseases and insect pests, the fungicides used must have carbendazim (50% carbendazim 800 / 1000 times), which is the key to the hairless peach. (2) in the later stage of fruit growth, combined with the prevention and control of diseases and insect pests, there must be a spray in the fungicide (80% spray 800ml 1000 times), in order to facilitate the smooth and clean "hairless" skin of hairy peach fruit.

On the basis of peach tree management, pay attention to the technical application of the above three aspects, the skin of hairy peach fruit is nearly "hairless", thus improving the fruit quality of hairy peach.