Hanfu apples have been developed in recent years in north central Liaoning, Hebei Bashang, northern Shaanxi, Gansu and Ningxia, and Yili, Xinjiang. Their good adaptability and production performance are recognized by the majority of farmers. However, the growth and development habits of this species are relatively unique. If the pruning methods of the general species are adopted, the ideal results are often not obtained. Among them, the treatment of the extended heads at all levels is particularly prominent. It is recommended to note the following in production:
1. Pay attention to smear buds. The species grows vigorously, the autumn shoot growth force is stronger, and the stop length is later. When the temperature is low at the end of autumn, it will form a section of autumn shoots with a length of about 15 centimeters. The internodes are very short, the buds are more open, and the pith is very large. The organization is not full. In the following year, a cluster of dense shoots will form here at the time of germination. With the growth of new shoots, many cracks will form, which is a part of rot disease. Many sapling rots are found here and have a great influence on shaping. For this kind of main branch extension head, buds are to be applied in the spring flowering period, and the shoots with the buds sprouting at the very front are kept. The remaining 15-20 cm buds are erased. After such treatment, the growth of new shoots grows with the extension of the reservation, and the original end of the autumn shoot will be normally thickened, which greatly reduces the occurrence of rot disease. For the central dry extension head, the end of autumn shoot is subtracted from the winter cut, the buds are budded after germination, and the shoots with the buds sprouting at the most front end are retained, and the remaining shoots are removed by 15-20 centimeters.
2. Pay attention to the handling of competition branches. A variety of shoots tend to occur at the apex of the annual branch of the variety, and there are more competition branches. If it is not dealt with in time, the growth potential of the extension head will be weakened, and the uniaxial extension of large branches and branch groups cannot be guaranteed. Moreover, the sprouting ability of the buds and latent buds of this species is very strong. Even if buds are sprouted during budding, some new shoots will be produced. For such new shoots, it is necessary to cut in the mid-summer stage and retain 6 shoots of short and large shoots to promote the development of the shoots. In addition, this species is easy to flower into the secondary shoots. Take the Shenyang area as an example. As long as it is short before June 25, the sprouting sub shoots can become flowers. This is an effective measure to promote the high yield of young trees.
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