A: The shape of the happy apple is 1.0-1.8m high, the height of the tree is 3.5-4m, the crown is 6-12m, and the crown is oblate or umbrella-shaped. There are 2-3 permanent main branches of this kind, and the lower main branches are 1.2-1.5m away from the ground, and the main branches are more than 30cm apart. The base angle of the main branch is 80-90 degrees, the waist angle is 60-70 degrees, and the tip angle is 40-50 degrees. There are 1-2 side branches on the main branch, the first side branch is 1.5-2.5 m, the second side branch is 0.3-0.5 m from the first side branch, and the side branch length is 1.0-2.0 m. Choose the small crown happy shape and the happy shape tree shape, planting 8-33 plants per mu, the amount of branches per acre is 60,000-80,000, the number of main branches of each tree is 2-6, the thickness of the leaf layer It is 1.8-2.0 meters, and the amount of fruit per acre is between 10,000 and 12,000.
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