American blackberries have the advantages of cold resistance, drought resistance, moisture resistance, pest resistance, strong growth potential, strong branching ability, and easy breeding. The results of planting that year generally enter the high yield period in the third year, and the hectare output can be stabilized at about 26.25 tons. . It is rich in sugar, fruit acids and a variety of vitamins. It also contains a variety of minerals, and it has anti-aging and human immunity. The cultivation method is as follows:
Breeding blackberries is extremely easy to reproduce, mainly cuttings. Select fertile soil, cool and damp (but not water) place for the best nursery, select mature new branches, leaving 2 buds cut and cut can be. The cutting time is from December to January. If the management of water and fertilizer is strengthened, the young plants with good growth will be obtained in the year of cutting, with 4 to 5 branches and more than 2 meters in height. Some mature shoots can be fruited in the same year, but the fruit quality is not linked.
Garden choice choose sunny. Drainage and irrigation are convenient, and sandy loam with loose soil and fertile soil is used as a garden. Although blackberries grow better in cool, moist conditions, their quality, especially the ratio of sugar to acid, has a slight influence.
Plant spacing is generally 2x2 meters, 2550 plants per hectare. Planting holes require 60x60x60 cm. After applying organic fertilizer, superphosphate, vegetable cake or coke ash, etc., it can be planted with a cover of 30 centimeters of thick soil. The planting period is from October to January. Distant root system when planting, after planting water. Pay attention to watering and drought prevention at the beginning of planting.
Water and fertilizer management 4 times fertilization throughout the year. October Shiji Fei, mainly organic fertilizer, superphosphate, coke ash or vegetable cake. At the end of January, the fertilizer was applied before budding, mainly based on imported compound fertilizers. In the middle and late July, topdressing was mainly based on available nitrogen (rare human urine or urea). The garden pays attention to drainage, and the fruits are dried as much as possible during the ripening period, which is beneficial to increase sugar acidity.
After planting the blackberry species, it is time to set up scaffolding, raising the height of 1.8 to 2 meters, fences and sheds. The new shoots are distributed on the shelf surface at 30 cm, and they do not overlap.
The new shoots from the rhizosphere of the BlackBerry due to germination are the result of the second year of the mother tree, and the growth is very strong. In order to promote its maturity and multi-branch, it is necessary to carry out frequent topping. In order to reduce nutrient consumption, branches that have already been produced in the past may be cut off from the base in the period from August to September after the results, so as to concentrate nutrients, cultivate new shoots, and pay attention to often tying new shoots.
The pruning period of winter pruning is from December to the end of January, and 8 to 20 shoots can be shortened according to the maturity of new shoots (results of mother trees). The principle of total pruning is mainly light shear, resulting in a spacing of 50 centimeters between the mother branches and the extra pruning.
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