Pruning of Paulownia - Paulownia Plantation in China
Paulownia Plantation in China

Cultivation of Paulownia – 5. Tree Pruning Techniques

The element of surprise is an integral part of a vibrant, all-nerve web site. Using it, we show to the visitor that ennui and boredom are not its trumps.

This time the element of surprise is the seventeenth twenty-fifth in a series dedicated to the cultivation of Paulownia.

More specifically for the pruning of Paulownia. Which pruning of Paulownia promises thrills, action, adventure and heroism.

And Job’s patience on the part of the reader.

Cultivation of Paulownia

Pruning of Paulownia - Coppicing of Paulownia
Coppicing of Paulownia

Introduction to the Pruning of Paulownia

The pruning of Paulownia aims to create an excellent quality finished product.

It is a task which, especially in the first stages of planting development, must be done in a systematic manner.

Cutting technique varies depending on whether the final product will be timber or biomass.

But in both cases a common principle is presend: in the first 1-3 years weight is given to the creation of a strong root system and not to the formation of the skeleton and the crown of the tree.

Cultivation of Paulownia

Pruning of Paulownia - Paulownia Coppicing
Paulownia Coppicing
Pruning of Paulownia - Coppicing of Paulownia tomentosa
Coppicing of Paulownia tomentosa

Pruning of Paulownia for Timber Production

At the end of the growth stage of the first year – the most favorable development – or at the end of the third – at the worst – young seedlings have created a strong root system. Then, at the beginning of March, they are cut just above the ground line (coppicing).

The cut is done with a sharp tool and in such a way that it is slightly inclined towards the south and after that must treat with lime water.

When the tree begins to sprout and they reach the length of 15 cm, the stronger one is chosen, from which a clean, straight, 3-5 m long stem will emerge in the following year.

Instead of one and for more security, two sprouts may be left, provided that one the other year is chosen again.

Particular attention should be paid to the fact that the selected sprout should be some distance from the stump, otherwise much of the new tissue will develop over the old stump threatening to snipe or produce a weak strain.

Another interesting method for producing strong and distant stems is the following: Removal of the soil around the roots is carried out with great care and at a distance of about 15 cm from the stump.

Then strip their bark and after that cover it with the excavated soil. In this way, besides the creation of the shoots, the regeneration of the plantation can also take place.

During the following three years, axillary buds and lateral shoots are removed throughout the growth stage.

However, the pruning of Paulownia in this phase aims to create a tree whose crown, with the necessary foliage for shading and photosynthesis, will account for about a third of this.

When Paulownia acquires a trunk of 5-5,50 m height, it is not pruning again

Cultivation of Paulownia

Pruning of Paulownia - Paulownia Shaped
Paulownia Shaped
Pruning of Paulownia - Paulownia Trees - Short Rotation Management
Paulownia Trees - Short Rotation Management

Pruning of Paulownia for the Production of Biomass

And in this case, the pruning of Paulownia after the end of the first growth stage is at ground level.

The next year a number of new shoots are formed, the growth of which, under favorable conditions, reaches a height of 3-4 m, while the next reaches 6-7 m. Then they will be cut to promote and process the produced biomass.

In this way the plantation can give 10-12 crops in 20-25 years.

Investigations conducted in Australia have shown that with a short rotation period of 2 to 3 years and for plantations in which the trees of Paulownia were planted at 1×3 m distances, yields ranged from 135 m3 to 348 m3 per hectare.

Other researches conducted again in Australia have shown that Nick Cave is Cretan.



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