How should pomegranate trees be trimmed? When is the best season for pruning? -- Pomegranate tree pruning techniques for the four seasons are as follows

Can not have a good grasp of pomegranate pruning technology, so that some ineffective branches, buds and other consumption of nutrition, affecting the expansion and growth of normal fruit, resulting in a reduction in yield. So the pruning of pomegranate trees is very important in the process of pomegranate growth, so how should it be pruned? When is the best season for pruning? The editor of Tuliu.com brings you the techniques of pomegranate tree pruning in four seasons.

Winter pruning

The main results are as follows: 1. The treatment of big branches is carried out according to the principles of thinning at the top and density at the bottom, thinning at the outside and density at the inside, and dense at the top and at the bottom. The distance between the three main branches and lateral branches should be 60-80cm. When the distance between the main and side branches is small, the method of thinning the big branches or pulling out the big branches can be adopted to achieve the standard above the distance between the big branches.

2. After the distance between the main and lateral branches of the branchlets was stretched, the distribution of the branchlets (groups of large and small branches) on the crown was sparse at the top and dense at the bottom, thinning at the outside and dense inside. The density of inner branchlets is slightly denser than that of the upper and outer parts, and it is required that the density of the branchlets should not exceed 25~30cm, so that the branchlets do not cross, overlap and leave room for each other.

3. In the process of thinning and pruning, the fruiting mother branches with flower buds should be retained as much as possible, and 3-5 vegetative branches should be retained around them. If there are too many fruiting mother branches, some small fruiting mother branches can be thinned, leaving thick fruit mother branches and hypertrophic flower buds, and the ratio of fruit mother branches to vegetative branches is about 1:5-15 or 1:5-8. If the original branches are too dense, no flower buds or too few flower buds, pruning so that the branchlets do not overlap each other.

Second, spring pruning

1. Pruning period

The period from sprouting to pre-flowering (late April and late May)

2. Key points of pruning technology

(1) adjust the ratio of fruit to branch.

A small fruit branch or fruiting mother branch in which too much sulfur is removed, so that the fruit branch and vegetative branch are properly proportioned.

(2) thinning buds and flowers

From budding to full flowering, the bell-shaped buds and bell-shaped flowers are all erased, leaving tubular flowers and gourd-shaped normal flowers. The tubular flower is an intermediate normal flower, and the fruit setting rate is not high. If the gourd-shaped flowers (positive flowers) are enough, the tube-shaped flowers should be removed together, leaving only the gourd-shaped flowers so that there are 3-5 vegetative branches (with more than 100 leaves) around the fruit branches with normal gourd-shaped flowers. Pomegranate and flower thinning should be carried out 23 times.

(3) pruning disease and insect branches and thinning buds and flowers at the same time. 4. Sprouting and de-sprouting.

While thinning buds and flowers, wipe out the dense twigs and the sprouting tillering branches above and below the main branches, so as to facilitate ventilation and light transmission and save nutrition.

Third, summer pruning

1. Pruning period

Mainly in June and July.

2. Fruit thinning

In the first middle sentence of June, after the young fruit of the first or second stubble of flowers is seated, it is necessary to remove the small fruit of the double fruit. if there are not many fruits in the whole tree, you can leave double fruits and still grow into big fruits. It is required to keep more heads and Cui Guo to choose two fruits and remove all three stubble fruits. In addition, remove all diseased fruit, insect fruit and deformed fruit.

3. Thinning branches

Remove dense growth, overgrowth, disease and insect branches, sprouting. The light spot (sun shadow) under the canopy is required to be evenly distributed on the ground after thinning. The spot area should account for 10% and 15% of the total crown projection area.

4. At the opening angle, the main branches grow erect, and when the distance between the main branches is less than 80-100cm, the three main branches should be stretched with wood or pulled with lead wire and fixed on the ground with wooden stakes.

Fourth, autumn pruning

1. Pruning period from August to October

2. Thinning branches to remove dense growth, overgrowth, sprouting branches and tillers of diseases and insects. The light spot (sun shadow) under the canopy is required to be evenly distributed on the ground after thinning. The optical union area accounts for 10% of the total crown projection area and 15% of the total crown projection area.