Eucalyptus is a light-loving tree species. The wood is red, shiny, without special smell, with staggered textures, dense structure, hard and heavy materials and easy bending, which is very suitable for bending wood. Can be used as furniture, floors, lathes, tool handles and farm tools. Its fiber is a good raw material for papermaking, which has a high combustion value of small diameter wood, can be used as fuel and has a wide range of uses.
Afforestation:
1, afforestation site selection. Choose barren hills suitable for forest with convenient transportation, gentle slope, deep soil layer and loose fertility below 600 meters above sea level.
2. Soil preparation. The size of the hole is 40×40×40 cm.
3. Density. Plant spacing: 2× 3m, per mu 1 12 plants.
4. Apply base fertilizer. Within half a month before planting, the top soil should be used to return to the hole height 10 cm, and then 0.5 kg of phosphate fertilizer should be applied to each plant. Note that phosphate fertilizer should be removed evenly and not piled up, and then fill the pit with soil to the soil surface.
5. seedlings. It is required that the provenance is pure and the seedlings are of the first grade. ..
6. Planting. Eucalyptus seedlings are planted on the mountain. Because the seedlings are tender, special care should be taken in transportation and planting. When planting, you should first remove the nutrient bag, hold the nutrient soil by hand, carefully put it into the hole, then cover the soil, compact it from the side, and then compact the root of the seedling with fine soil, just enough to cover the nutrient soil. Finally, cover the surface with 3-5 cm fine soil to form a turtle back shape to prevent water accumulation in rainy days.
7. Top dressing. Top dressing 3-4 times a year. The interval should not be too short or too long, generally every 2-5 weeks. Top dressing with nitrogen fertilizer has a great influence on the quality of seedlings. In order to improve the resistance of seedlings to low temperature and drought, top dressing should be completed 6-8 weeks before frost comes. After the first afforestation 1 month, combine weeding seedlings with topdressing urea in rainy days, and apply 3-5g urea to each plant, and circle at a horizontal distance of 5 cm from the seedlings. When fertilizing, we should guard against death. The second time, each plant is 6-10g; The third time was 6- 10g/ plant; For the fourth time, more than10g urea was applied to each plant. Finally, cover a layer of fine soil with a thickness of 5-7 to prevent fertilizer loss.
Management and maintenance:
1, management and protection. After afforestation, a special person should be arranged to take charge to prevent human and animal injuries within three years.
2. care. Tend to be twice. For the first time, one month after afforestation, it is necessary to cultivate soil, loosen soil and weed. In June of the following year, it was required to shovel grass, remove sprouting and expand holes. The hoeing depth is greater than 10 cm. Because eucalyptus is naturally pruned, there is generally no need for manual pruning, so as to avoid leaving scars on the trunk, resulting in poor trunk shape; When the advantages of individual tips are not obvious or there are more than two damaged branches at the top of seedlings, pruning and shaping should be carried out to promote the formation of trunk.
Pest control:
The common pests of eucalyptus are soil-dwelling termites, mainly black-winged termites, followed by yellow-winged termites. Although other ant species have been found in the forest, they are not enough to cause harm.
1, the law of harm. In the young eucalyptus forest, termites first harm the root neck, then gradually transfer from the soil layer to the surface and aboveground parts, and then peel off the cortex of the main root, inverted root and trunk base along the surface soil, so that the young tree nutrition can not be transported up and down and die. In severe cases, a layer of "mud quilt" is built above and below the trunk to wrap all the branches of the trunk, so that the appearance of each young tree looks like "clay sculpture", and termites peel off the phloem of eucalyptus in the "mud quilt" to expose the xylem, resulting in the death of the tree.
2. Prevention methods. In priority cases, drug bait is used to trap and kill.
(1) During afforestation, 3-4g carbofuran is mixed with base fertilizer and soil to fill holes, and the dosage is 0.35kg per mu.
(2) After afforestation, apply 2 grams of carbofuran (carbofuran) around the stump at a horizontal distance of 5, and use 0.22 kg per mu. Be careful not to let the powder come into contact with the seedlings to avoid phytotoxicity.
Economic value:
The yield per mu is 7~8m3, about 5.6 tons, with a value of 2,800 yuan (500 yuan/ton), the input cost is 300~350 yuan/mu, the timber tax is/kloc-0.4 million yuan, and the profit is about/kloc-0.0 million yuan/mu.
Actually, it's not bad to grow tea there. After all, there is still a market for tea, especially good tea. In fact, no matter what you do, it's useless to grow gold anyway. You don't have time to hire someone to take care of it!