Expert organization in plant nutrition
Expert organization in plant nutrition
Aquaculture Pests Diseases Flowers Products Deficiencies Subject

POPLAR CULTURE Care Disease Pests Nutritional Deficiency and Plant Nutrition

One of the most important conditions of success in modern and technical poplar cultivation is the selection of the poplar plantation area and the second one is the use of high quality poplar saplings.

All the coastal and back-to-coast regions of our country up to 800-1000 meters high are suitable for growing hybrid poplar.

Due to the suitability of growing conditions in these regions, poplars come to the age of slaughtering in 10-12 years and are evaluated by poplar wood processing industries at good prices.

The local cypress poplars that will be grown in these regions both grow heavily and may face the threat of many pests.

In our Central Anatolia Region and South-East Anatolia Region, both hybrid poplar and cypress poplar can be grown. However, when deciding which of these growers the poplar should consider marketing opportunities.

We recommend that cypress poplar be grown in Eastern Anatolia Region with harsh climate.

Generally; loose soils, deep, aeration and good permeability, low-calcified, pH (acidity and alkalinity) of 6-8 to the bottom of the water or water can reach the roots of poplar roots are ideal soils.

The saplings that we will plant poplar afforestation should be taken from the State Nurseries or from the private nurseries with official certificates under the technical control of the State Nurseries.

The seedlings to be used must be 2 old or well developed, 1 old and from the clone suitable for growing.

Heavy clay soils, soils whose ground water is less than two meters or can not be irrigated, very calcareous and saline soils and ground water is 50 cm. Soils that are close to the poplar are not fertile for afforestation.

Poplar afforestation of the land to be established before planting in the early summer or autumn after cross-deep version of the disc harrow should be corrected, planting pits should be opened before the heavy rainy season

If there are water near the soil surface during the periods when the poplar leaves, this water should be drained with drainage trenches.

What should be the spacing and distance arrangement of the plantings?

The most difficult and decisive issue in poplar plantations is the spacing-distance arrangement. The populations of poplar trees are as follows:

Very often: less than 10 m2

Favorites: 10-25 m2

Relatively frequent: 25-35 m2


Sparse: 45-60 m2

Very rare: more than 60 m2.

Regarding which of these degrees to choose:

a- Cultivation and production purpose

b- Climate

c- Poplar clone and type to be used

d- Plantation type

e- Marketing conditions

are factors that affect our decision. Samsun clone (77/51), produced in our nurseries and distributed to the public, and spacing-distances such as 6x6, 5x7, 5x5 meters for I-214 hybrid poplar seedlings are the normal orders that we recommend to apply. This poplar planted with spacing-distances 30-40 cm at the age of 10-12. diameter can produce thick poplar wood. Poplar growers should continue to do poplar afforestation with the abovementioned spacing range if they want to produce for the needs of thicker wood-consuming industries such as plywood, matches and construction sectors.

In recent years, important technical and technological developments in the populations of poplar wood industry and their consumption capacities have enabled the consumption of thinner poplar wood and this change in advanced countries has been reflected in our country. When it comes to using small and thin-sized wood, it is of course necessary to narrow the gap-distances economically. In particular, the developments of the fiber-chip industry in the world and in our country in recent years show that in the coming periods, the importance of quality will be given as much as quality in the use of wood.

If breeders aim to produce thin diameter wood with I-214 hybrid poplar clone, the spacing-distances should be 2x4,15x4 and 2.5x4 meters in the poplar plantations to be established. In this case, the rows should be brought to the north-south direction and the poplar afforestation should be provided with plenty of light from the south in summer. This interval is between 12-15 cm. can be purchased and marketed. However, growers wishing to establish poplar afforestation in this way should think in advance to which factories they can sell the fine wood they will obtain and make a pre-sale agreement with the factories that will buy these poplar. Otherwise, they may not be able to sell poplars to grow and it is no longer possible to improve the poplar afforestation that has reached this age. However, if it is desired to obtain thicker sawed wood from this type of poplar afforestation, the remaining trees can be cut after 18-20 years under the supervision of a technical staff.

According to this information, hybrid poplar saplings and poplar afforestation to growers will be more conscious than before, and in case of hesitation

We recommend that they apply to the directorate of the Research Institute of poultry.

Planting, Maintenance, Irrigation

According to the agreed spacing distance arrangement, the places to be pit are marked with a bar. Planting pits can be opened manually using a waist shovel or with auger mounted on the tractor. Planting pits average 60 cm for two aged seedlings. width should be at a depth of 90-100 cm. For an older seedlings this width and depth can be kept less. If the soil is clayey, the width of the pit should be increased as much as possible, and the depth of the pit should normally reach one meter in the case of very light and coarse soils.

If a bright and hard layer is formed on the surface of the pit when the planting pit is opened with auger, seedlings should not be planted before tearing this layer in several places.

Poplar saplings removed from the nursery should be planted as soon as possible.

During the period until planting (even for one day), the saplings should be buried in a pit or trench at a depth of 50-60 cm on a side of the land to be established and covered with soil.

Since the two old poplar saplings are 6-7 meters long, the vehicles to be used in transportation should be long cased.

Since the parts of the seedlings that will suffer the most from unfavorable weather conditions such as excessive sun, wind and frost have roots, the roots should be covered with tarpaulin during transportation.

Planting of poplar saplings should be done during the period between the end of November and the first half of March when the buds do not explode. Samsun clone (77/51) should be planted in February.

Planting should not be done in periods when the soil is frozen.

In the planting, top soil should be placed in the lower half of the pit and soil should be placed in the bottom of the pit.

A can of well-burned animal manure should be mixed with the soil placed in the upper half of the pit.

During planting, the soil should be compacted with the foot and no stakes should be tied to the seedling.

If there is water in the planting pit during planting, it should be emptied with a suitable container.

The seedling pit should be filled with soil up to the soil level.

If poplar is to be planted in our neighbor's field, it should be built 3 meters from the border and at least 5 meters from the inside if agricultural culture is to be made.

Bottom shoots after planting should be cut in September of the first year.

Fork hills should be united during the winter season when the tree is leafless.

Dried and broken seedlings at the end of the first year at the end of the planting should be done with strong and quality seedlings.

Agriculture can be done with anchor plants in the first years of poplar plantation

In the first years of poplar plantation, it may be appropriate to perform plow version and disc harrow twice a year, in May and July.

From the fourth year to the seventh year, at least once a year version and discotheque must be done.

Seedlings should not be approached more than 50 cm during tillage between rows.

In early years, deep cultivation is not harmful for poplar plantations which have not been cultivated or shallow.

It will be beneficial to give animal manure to poplar plantation.

If the water requirement of poplar plantation cannot be met with rainfall or ground water present in the soil, irrigation is absolutely necessary.

In heavy and clay soils, irrigation should be done infrequently but with plenty of water.

In sandy-gravel (coarse structured) soils, it should be watered gradually.

As soon as the soil comes to the pan after watering in poplar afforestation, a version must be made or disco must be withdrawn.

Pruning should be done in the first half of August or in February.

The first pruning trunks in poplar plantations are l0 cm. thickness should be started after.

Pruning should be done regularly and gradually with one or two branch rings each year.

The determination of the age of slaughter in poplar plantations depends on the range and distance order applied in the establishment. In general, poplar afforestation plantations which have been established with normal spacing and regular maintenance come to the cutting age at the end of 10-12 years (Figure 12).

As the poplar afforestation becomes more frequent, the cutting age decreases. It gets sparse. Depending on the development and market conditions, cuttings can be taken a little early or delayed up to 3-4 years.

The most important usage and consumption areas of poplar wood are; plywood, matches, loading pallets, veneer, construction, packaging, wood pulp, fiber and chip industry, shoe mold, cobbler heels, mold and prosthesis industries. Among the listed industries, the highest consumption is currently made of plywood, matches, packaging and construction, followed by fiber-particle board. In the valorization of a poplar afforestation, the afforestation owner should thoroughly study these valuation areas and evaluate the proposed prices accordingly.