Protecting the tree structure of cultivated large cherries

At present, the main tree shape in the production of large cherry trees is naturally happy shape, improved trunk shape, sparse trunk shape, and elongated spindle shape.

Naturally happy trunks are 30-40 cm tall, 3 to 5 main branches, 6 to 7 lateral branches on each main branch, and 30 to 45 degrees on the main branch. The tree height is controlled at 1.5 to 1.8 meters and the entire canopy is round. In the greenhouse cultivation, the front part of the greenhouse is low and can adopt a natural shape with low dries.

The modified trunk-like tree structure resembles the free spindle shape of an apple tree. There is a central leader, stem height 30 to 50 cm, with 10 to 15 uniaxially extending main branches at the center leading, the distance between the lower main branches is 10 to 15 centimeters, and the height is 15 to 20 centimeters in order. , spirally distributed. The main branch base angle is 80-85 degrees, and a large number of branch groups are directly produced on the main branch. The tree structure is simple, easy to trim, good ventilation and light transmission, easy to flower, high yield, suitable for close planting, the current use of this type of tree cultivation.

The trunk sparse tree structure is characterized by central leadership. About 50 cm high stem, a total of 6 to 8 main branch, divided into 3 to 4 layers. The main branch of the first layer of 3-4, the main branch opening angle of about 60 degrees, each main branch with 4 to 6 lateral branches; the second main branch 2, opening angle of 45 to 50 degrees; third, fourth There are 1 main branch in each layer, the opening angle is less than 45 degrees, and 1 to 3 side branches are formed on the main branches of the second, third and fourth floors. The first and second layers have a spacing of 60 to 70 cm, and the second, third and fourth layers have an interval of 50 to 60 cm. There are various types of result sticks on all kinds of backbone sticks. The advantage of this tree is that it is the result of moderate tree growth, yield and yield stability, and the result is long years. The disadvantages are strict technical conditions, large amount of pruning, and low initial production.

The center of the slender spindle is 40 to 50 cm in height, more than 2 meters in canopy, and 1.5 to 2 meters in diameter. In the center, there are 15 to 25 branches that are uniformly distributed on the wheel and grow similarly and horizontally. The entire tree is elongated and spindle-shaped.

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