Not even protecting plants.
Eucalyptus cultivation techniques
Eucalyptus likes light, humidity, drought, heat and cold, and is very sensitive to low temperature. Most require the annual average temperature to be above 65438 05℃, and the most Leng Yue is not lower than 7-8℃. Generally, it can grow in areas with annual precipitation of 500 mm, and it grows better when the annual precipitation exceeds1000 mm. It is suitable for growing in acid red soil, yellow soil and alluvial soil with deep soil layers, but it grows better in places with deep soil layers, loose soil layers and good drainage. The main root is deep and has strong wind resistance. Most roots and necks have wood tumors, which can store nutrients and germinate and renew. Generally, it can blossom and bear fruit in 3 ~ 4 years after afforestation.
Afforestation management
Afforestation site selection: Choose barren hills with convenient transportation, gentle slope, deep soil layer and loose fertility below 600 meters above sea level.
Soil preparation: the hole size is 40×40×40 cm.
Density: plant spacing: 2× 3m, per mu 1 12 plants.
Application of base fertilizer: within half a month before planting, the top soil is returned to the hole height 10 cm, and then 0.5 kg of phosphate fertilizer is applied to each plant. Pay attention to the uniform application of phosphate fertilizer, do not pile up, and then fill the pit with soil.
Planting: planting eucalyptus seedlings 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 press the root of the seedling with fine soil to cover the nutrient soil to a suitable depth. Finally, cover the surface with 3 to 5 cm of fine soil to form a turtle back shape in case of rainy days.
Top dressing: Top dressing times are 3-4 times a year. The interval should not be too short or too long, generally every 2 to 5 weeks. Because the topdressing period of nitrogen fertilizer has a great influence on the quality of seedlings, topdressing should be completed 6 ~ 8 weeks before frost in order to improve the resistance of seedlings to low temperature and drought. After the first afforestation 1 month, topdressing urea should be carried out in rainy days in combination with weeding of seedlings, with 3 ~ 5g of urea applied to each plant and circling at a horizontal distance of 5cm from the seedlings. When applying fertilizer, it should be strictly prevented from spreading to seedlings. The second time, each plant is 6 to10g; The third time is 6 to10g per plant; For the fourth time, more than10g urea was applied to each plant. Finally, cover with a layer of fine soil with a thickness of 5 to 7 to prevent fertilizer loss.
Management and protection: after afforestation, special personnel should be arranged to prevent human and animal injuries within three years. ?
Management of budding forest
Loosening: After the trees are cut down, before the tree heads germinate, ditch to loosen the soil. It is best to use a high-power tractor with three iron hooks to loosen the soil along the line, with a depth of about 40 cm. The function of loosening soil: first, loosening soil to release nutrients and fertility, which is convenient for trees to absorb; Second, it is beneficial to the respiration and ventilation of tree roots; The third is to hook off the old roots with poor absorption ability, so that the tree head can grow more new fibrous roots with strong absorption ability, which is beneficial to the growth of trees.
Planting: Eucalyptus has strong germination ability. After logging, a tree head can generally sprout six or seven buds, up to a dozen or twenty. There are many sprouting strips, which compete for nutrient space and soil nutrients, which is not conducive to budding forests. Therefore, the budding forest should be thinned and fixed in time.
In the practice of planting: after cutting down trees, when the shoot length at the head of the tree is about 1.5m, and the differentiation is obvious, according to the principle of "removing the weak and keeping the strong, removing the dense and keeping the sparse, and keeping the reasonable spacing", select and keep the 1-2 dominant plant with strong growth, obvious top advantage and straight stem shape, and all the other shoots are cut off from the base.
Topdressing: several kinds of chemical fertilizers are evenly mixed according to the dosage and applied into the ditch (hole), and then covered with soil. Top dressing for the first time: 5-6 Liang of phosphate fertilizer per plant +65438+ 0-2 Liang of urea+0.5- 1 Liang of potassium chloride; For the second and third topdressing, each plant should be applied with 3 Liang of phosphate fertilizer+2 Liang of urea+0.5 to 1 2 of potassium chloride. If compound fertilizer is used for topdressing, 3 ~ 4 Liang of compound fertilizer +65438+ 0 ~ 2 Liang of urea can be applied to each plant each time.