1 Prune three times first, then three times in turn, three times for thinning and three times for high yield \x0d\ \x0d\ The pruning order of Red Fuji apple trees is pruning big branches first, then pruning small branches; Trim the lower branches first, and then trim the upper branches; Prune the branches in the crown first, and then prune the branches outside the crown. For better ventilation, light transmission and high yield of fruit trees, the principle of "three sparse and three dense" should be followed when pruning red Fuji apple trees, that is, large branches are sparse and small branches are dense; The upper branch is sparse and the lower branch is dense; The branches outside the crown are sparse and the branches inside the crown are dense. \x0d\ \x0d\ 2 Light cutting and long planting are postponed year after year, flowers and fruits are not cut \ x0d \ x0d \ Red Fuji 1 and planted for two years, except the backbone branches or other branches with space, other moderate branches are not cut slowly, and then retracted after the results, and the branches that are too dense and too prosperous are cut off appropriately. \x0d\ \x0d\ 3 Combination of blocking and placing, flat cutting \x0d\ \x0d\ In order to prevent the branches of Red Fuji from releasing year after year, there are many branches at the top of the branches, which leads to the decrease of nutrients in the tree, the difficulty in forming flower buds, and the generated parts move outward. Some branches can be retracted (blocked) to stimulate the lower part to produce short branches, and the rest branches are slowly released (released) to form. At the same time, for Fuji branches that have formed flower buds, they can be cut short to the flower buds during pruning to avoid peeling due to cutting short. \x0d\ \x0d\ 4 Go to both sides every Wednesday, leaving the branches in the middle \ x0d \ x0d \ The small branches on the periphery of the crown of Fuji apple trees often have crowded and competitive trigeminal branches. Generally, the branches on both sides should be thinned, leaving one in the middle. \ x0d \ x0d \ 5 \ x0d \ x0d \ Red Fuji apple branches have great growth potential. When pruning, trunks at all levels can be bent and elongated, that is, the angle of elongated branches decreases in the first year, increases in the second year, decreases in the third year, increases in the fourth year, and so on. \x0d\ \x0d\ 6 "four more and two longer" pruning shears \x0d\ \x0d\ In order to prevent the excessive growth of red Fuji apple trees from affecting the results, Red Fuji often uses "four more and two longer" pruning, with four more branches on the periphery and two more branches on both sides. The two long branches are extended branches with long backbones, and the long branch group is the dominant branch. \ x0d \ x0d \ 7 \ x0d \ x0d \ Red Fuji is easy to form a growth trend of strong on the top and weak on the bottom, strong on the outside and weak on the inside. Therefore, when pruning continuously every year, we should control the apex advantage of branches, remove the upright branches at the top of the branches in time, promote the germination of the lower branches, and bow our heads in time during the full fruit period, so that there are fewer branches in the upper part of the crown and more branches in the lower part. \ x0d \ x0d \ 8 \ x0d \ x0d \ x0d \ The pruning method of slow release and short cutting is generally adopted in the shoot group culture of Red Fuji apple trees, that is, the annual medium branches are slowly released into flowers and fruits, then cut into branches, and then cultivated into fruiting branches, which are combined with expansion and contraction. \x0d\ \x0d\ 9 "three sets of branches" pruning method \x0d\ \x0d\ The pruning method of "three sets of branches" is often used in the pruning of red Fuji, that is, let three branches on one branch bear fruit in the current year (the current year's output), one branch slowly release (the second year's output) and one branch be cut short (the second year's output). \x0d\ \x0d\ 10 \x0d\ \x0d\ Red Fuji is weak in the late stage of full fruit, so it needs to increase the branch angle, pay attention to renewal and moderate pruning.