Planting Technology Lists
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Seed collection, seedling cultivation and afforestation techniques of spruce
Spruce is also known as Maxwell spruce, rough spruce, rough spruce. Its material is good, slightly soft, flexible, easy to process, with the production of high-quality building materials, furniture, pillars and other uses. Spruce is suitable for temperate humid climate and is one of the main timber tree species in North, Northwest and Southwest China. 1. Seed collection in the northwest natural forest region, spruce seeds began to mature in October, cones from green to yellowish brown, chestnut brown can begin to collect seeds. It is best to choose the 30-50-year-old mother tree with strong growth and stem shape.
2019-01-16 -
Spruce bark beetle
Spruce bark beetle [Dendroctonusmicans (Kugelann)] belongs to the family Coleoptera, which is mainly distributed in Austria, Belgium, Czechoslovakia, Slovakia, Denmark, Finland, France and other countries. Some species of spruce, pine, fir, European larch and Douglas pine are also occasionally damaged in China. The damage is characterized by adults and larvae, which can damage weak trees and withered standing trees. When the damage is rampant, it can damage healthy trees and seriously damage the transport function of trees.
2019-01-16 -
Spruce Monochamus alternatus
Spruce longicorn beetle (MonochamusurussoviFisher), alias spruce longicorn beetle, belongs to Coleoptera longicorn beetles, which is distributed in Northeast China, Inner Mongolia, Hebei, Shandong, Jiangsu, Shaanxi and other places. It is mainly harmful to red spruce, fish-scale spruce, stinky fir and so on. The larvae cut down fallen trees, weak standing trees, wind fallen trees and logs in the timber yard, forming coarse insect paths, and adults gnawed on the young bark of live trees. Morphological characteristics adult body length 21-33
2019-01-16 -
Maintenance and Management of large Seedling Transplantation of Spruce
The transplantation and regeneration ability of spruce seedlings over 40 years old is weak, so it is especially important to maintain and manage the transplanted spruce seedlings in order to ensure their survival. With the continuous improvement of the grade of urban construction, the scale and grade of urban greening and beautification are also improved, which needs to reflect the effect of greening and beautification in a short time, so it is necessary to transplant a considerable number of tall trees. Hebei Saihanba Mechanical Forest Farm, as the largest larch timber forest base in North China, shoulders the mission of wind prevention, sand fixation and water conservation, and has provided for Beijing and Tianjin for many years.
2019-01-16 -
Transplanting large seedlings of spruce
Seedling transplanting is one of the main greening means of urban street and landscaping as well as the construction of ecologically well-off villages and towns. In recent years, the transplanting of large seedlings is particularly important because of its quick effect, remarkable effect and not easy to be damaged by man-made, which has been recognized by everyone. However, the transplanting of large seedlings is also restricted by such factors as high cost, large investment, low survival rate and so on. Therefore, mastering the transplanting technology according to the biological characteristics of different tree species, improving the survival rate and increasing the green area play a positive role in promoting the construction of ecological civilization. Qinghai
2019-01-16 -
Red blight of spruce and its control
In recent years, with the increase in the number of spruce planting, spruce red blight occurred seriously, and some closed forest belts were as high as 50%, seriously weakening the tree potential and even causing dead trees. The incidence of the disease is rapid, from the bottom of the tree to the tree, the outer edge of the crown to the inner chamber, the base of compound leaves to the top. As many as 10 days, as little as 1 week, can cause the whole plant leaves to turn yellow, and then fall off. The disease is caused by fungi. When the temperature suddenly changes and the humidity increases, the tree will become sick. The diseased leaves appear small brown spots at first, then expand into dark brown, and when it is wet and rainy.
2019-01-16 -
Spruce bark beetle
Spruce bark beetle (IpstypographusLinnaeus) belongs to the family Coleoptera, which is distributed in Northeast China, Inner Mongolia, Sichuan and other places in China. It is mainly harmful to spruce and Korean pine, and is a destructive pest in some spruce forest areas. The characteristics of the damage are built between the phloem and sapwood of pine trees, and the tunnel is a compound longitudinal pit, which can directly infringe on healthy wood, and often occur together with other bark beetles, resulting in the death of trees. Morphological characteristics of adult body length 4.0-5.5mm
2019-01-16 -
Introduction of New varieties of Flowers in Spring
With the advent of spring, there are many new varieties on the market, and some of them have been published in this issue to provide dinner for readers. Introduction to the variety of black-hearted golden chrysanthemum 'Denver Daisy': early flowering, long florescence, flowering from late spring to the first frost, wide adaptability, strong heat resistance and drought resistance, simple cultivation management and short cultivation time
2019-01-16 -
Cultivation techniques of Common Grass Flowers in North China (1)
In the cultivation techniques of grass flowers, some varieties are demanding on temperature, and some varieties are very sensitive to light. according to the practical experience of production for several years, the author summarizes the key points of cultivation techniques of several recommended flowers commonly used in northern areas in recent years. for the majority of colleagues for reference. -Labiatae, Salvia
2019-01-16 -
Chemical preservation of edible fungi
The chemical preservation of bacteria has the advantages of simple method, low cost and high degree of preservation. Sodium chloride (salt) fresh-keeping freshly collected Pleurotus ostreatus and Pleurotus ostreatus are soaked in 0.6% salt water for about 10 minutes, drained and stored in plastic bags, which can be kept fresh for 5-8 days. The fresh-keeping of sodium pyrosulfite puts the newly harvested flat mushroom on the clean cement floor, sprays 0.15% sodium pyrosulfite aqueous solution to the mushroom body, and turns the mushroom body while spraying so that it can be sprayed evenly. Put it in a plastic bag after spraying
2019-01-15