Fruit tree summer shears often make five major mistakes, want to increase production to do so

 Summer pruning is also called pruning in the growing season. It is one of the important parts of the apple tree's annual pruning. It plays an important role in the annual pruning of fruit trees. The main pruning methods are circumcision, ring stripping, twisting, topping, pulling, and sparse. Branches and autumn hats. However, if it is improperly trimmed, it will have an adverse effect on the fruit trees, so the summer pruning must grasp the following points.

Five principles of pruning



The object should be clear that the main objects of summer pruning are laissez-faire trees, young trees, age-appropriate trees, and trees with poor flowering and weak trees are generally not pruned in summer.

Time is appropriate for summer pruning to grasp the timing. Not only does not miss the good results, but sometimes the opposite result. General circumcision and ring stripping work best from late May to early June (the technology of Jingning Apple is generally not recommended). It is advisable to pick the heart and twist it from late May to early July. Pulling branches and thinning branches are better during the period from Liqiu to Bailu. Wearing a hat cut is best done in mid-August.

The amount of pruning should be appropriate. Because summer pruning will damage or cut off some branches and leaves, it will reduce the photosynthetic area and weaken the growth potential of fruit trees. Therefore, the amount of pruning should be lighter, and it should be lightly sheared under the premise of improving ventilation and light transmission, so as not to stimulate the growth or excessively weaken the tree potential, so as to avoid adverse effects on tree growth and results.

Promote flower bud differentiation, improve fruit quality, improve the canopy microclimate, ensure good ventilation and light transmission conditions, the branches are thin and moderate, the arrangement is even and reasonable, the light can be transmitted to the inner and lower layers, and the upper and lower layers are not covered. The degree of internalization to achieve the purpose of promoting flower bud differentiation, avoiding "years and years" and improving the quality of fruit.

It is necessary to determine the appropriate pruning method and pruning degree according to tree age, tree potential, variety characteristics, natural conditions, pruning purposes, etc., or to promote flowers and promote fruit, or promote growth, or improve fruit quality, and ultimately achieve high quality and high yield. The purpose of stable production and strong trees.

Trimming five misunderstandings and the correct method



Misunderstanding 1: Light picking and topping are not sustainable Some fruit growers think that picking the heart is to remove the new growth point, and gently picking the branches of the branches on the back, thus forming many long branches. There are also some fruit farmers who have basically the right heart, but only pick one heart. Standard topping method: When the branch length is 15~20 cm, remove the upper branch shoots from the 5~7 leaf parts of the base, observe once every 1 week to see if it stops growing. If it does not stop growing, it can be continuously topped. 2~3 times until the growth stops, and the germination below the topping part should be wiped out in time to avoid the long branches.

Misunderstanding 2: The object of circumcision (peeling) is not clear. One does not look at the tree potential, and circumscribes (peeling) the tree with weaker trees. The second is that the dwarf and short-branched fruit trees are also excessively cut (peeled), which greatly weakens the tree potential. The third is not to look at the age of the tree, but also circumcision (peeling) for saplings of 1 to 2 years and older trees of 15 years or older. The fourth is not to look at the size of the year, the results of the New Year tree without circumcision (peeling), and the results of the small year tree to carry out extremely heavy circumcision (peeling), making the situation of the year and year more serious. The above phenomenon may have achieved the purpose of flowering the tree, and the tree is weakening too fast. The correct way: the object of circumcision (peeling) should be the Qiaohua tree with too strong growth potential and not enough fruit. The age of the tree is 5~15 years and there is no orchard in the surrounding orchard.

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Misunderstanding 3: Some of the fruit growers who twisted the stalks, regardless of how many twists on the back, have increased the amount of branches and affected the light. Where there is a large space on the back, when the new shoot grows to 35 cm, the high-twisting tip is in the semi-ligninized part (5~8 cm below the top), so that the advantage of the back can be fully utilized, and Does not affect the lighting.

The correct way: the same main branch twist should not be too much, should be twisted according to the size of the tree 3~5, the rest should be all removed. After twisting the tip, the base is easy to pull out new erect branches, and it should be budded or thinned in time.

 Misunderstanding 4: The fruit farmers who have improperly handled the fruit tops have cut off one side of the fruit table, some have topping, and some have simply removed them. These practices violate the law of the near supply of nutrients, resulting in less nutrients around the fruit and affecting fruit enlargement. The correct way: For the varieties with serious falling flowers, when the fruit shoots are 20~25 cm long, leave 6~7 leaves for light heart picking. For large fruit varieties such as Red Fuji, it is necessary to protect and utilize the fruit tops.

Misunderstanding 5: The popularity of scissors, saws, non-sterilization and rot, dry rot, has a lot to do with scissors, saws and other pathogens. The correct way: After sawing the rot disease or dry rot, you should immediately sterilize the pruning tool; the cutting slash should be treated in time, and it can be smeared with oil mixed with 1/15 methyl thiophanate or sulphur powder. Cut the saw.