62 results about "Dead wood" patented technology

Trehalose or trehalose-6-phosphate, when applied exogenously to citrus trees that are compromised in their growth and development with the condition referred to as citrus greening or HLB, can overcome the deadly effects of the problem. Renewal of tree tissue with trehalose or trehalose-6-phosphate has been documented to begin as soon as 72 hours after exogenous application to the dying tree. The tissue renewal continues with near complete renewal of the leaf canopy, development of fruiting buds, followed by flower development and then development of the flowers into abundant and healthy fruits. Much of what appeared to be dead wood tissue could be covered with healthy new leaves within 2 to 4 months after application. Addition of defined hormones to the soil application of trehalose or trehalose-6-phosphate further enhanced development of new canopy and root tissue.

The invention discloses a method for cultivating a dendrobium health preserving tree. The method comprises steps of tree erection and fixation, base material preparation, sprout transplantation, base material addition, tree cloth application and irrigation and fertilization. The method comprises fixing and transplanting various medicinal dendrobiums on layered benches to a dead wood having peel inserted in a base, wrapping prepared matrix nutrition bags, applying fresh tree cloth and maintaining water and fertilizers, irrigating, and spraying a light biogas slurry and a selenium-rich nutrient solution at regular intervals. The method can cultivate a dendrobium health preserving tree integrating grasses, flowers and trees, the dendrobium health preserving tree is evergreen in four seasons and can be used as an ornament with many flowers, the dendrobium health preserving tree can be used for enjoying and providing medicinal dendrobiums, so the invention provides an economic and practical method for cultivating indoor ornamental trees.

The present invention discloses a high-resolution image classification and denoising method and system for the disease and dead wood of pine trees. The method comprises: according to classification training of ground object color features of verified pest tree spectrum information, performing corresponding ground object color feature extraction on all pixel points in a to-be-classified image sample; selecting a target pixel set conforming to the multi-level disease pine tree feature from the to-be-classified image sample after being subjected to the ground object color feature extraction; performing denoising on the target pixel set conforming to the multi-level disease tree feature for the first time; performing denoising on the target pixel set conforming to the multi-level disease treefeature for the second time according to the distribution features of the disease tree; and finally, performing denoising on the target pixel set conforming to the multi-level disease tree feature forthe third time according to the forest area background, and generating a classification result of the disease and dead wood state of pine trees. Thus, according to the technical scheme of the presentinvention, a high-resolution image of the disease and dead wood of pine trees can be identified with high detection accuracy of different disease areas and different disease degrees, and the processing speed is fast and extremely stable.

The invention provides coal cinder organic fertilizer special for walnuts and a preparation method thereof. The fertilizer is prepared from, by weight, 30-45 parts of modified coal cinder, 10-20 parts of sheep manure, 4-8 parts of walnut shell flour, 2-6 parts of walnut tree fallen leaves and dead wood, 3-5 parts of garlic waste, 10-12 parts of oilseed rape straw powder, 2-3 parts of chick bone powder, 3-4 parts of fulvic acid, 1-2 parts of rhubarb powder, 1-2 parts of radix angelicae pubescentis residue powder, 12-15 parts of biogas residues, 5-10 parts of castor cakes, 5-8 parts of canal mud, 1.5-1.8 parts of chitosan, 1-1.2 parts of polyethylene glycol, 2-3 parts of EM microbial agents, 1.4-2.2 parts of urea, 1.2-1.6 parts of monopotassium phosphate, 0.01-0.02 part of ammonium molybdate, 0.2-0.5 part of zinc sulfate and 0.01-0.02 part of borax. The prepared organic fertilizer provides comprehensive, reasonable and balanced nutritional ingredients for walnut growth, has lasting fertilizer efficiency, and can promote soil organic matter accumulation, improve the soil structure and physicochemical property, improve the walnut yield and remarkably improve the walnut quality.

The invention belongs to the technical field of cultivation of Chinese herbals and edible fungi and discloses a dendrobium officinale and black fungus interplanting method. The method includes the steps of cultivation of hyphae of black fungus, construction of a dead wood frame, transplantation of dendrobium officinale, management, harvesting and the like. The method has the advantages that (1), prepared culture media are nutritious and reasonable in collocation, growth of the dendrobium officinale and black fungus can be accelerated quickly, and high-yield and high-quality dendrobium officinale and black fungus can be produced; (2) according to the method, the black fungus are produced while cultivation of the dendrobium officinale is realized, and consequently space utilization rate and economic benefits are increased; (3) the method is environment friendly, simple in operation, low in production cost and easy for large-scale industrial development.

The invention provides a method for extracting information on the expansion and elimination of dead wood of pine wilt disease in air photos of an unmanned aerial vehicle and belongs to the technical field of digital image processing. A color digital photo serving as an input image is switched from a RGB mode to a CIE(Luv)mode by smoothening treatment; histograms are counted, and small-scale histograms are initially clustered by a non-parametric clustering method, namely climbing-peak method; the clusters belonging to a dead wood area are selected from the image space and then merged to form a seed cluster; in the histograms, the seed-based clusters are subjected to mathematical morphology expansion by a 6-way three-dimensional mould plate, and lattices corresponding to the pixels out of the dead wood are allowed to enter a target cluster; and the non-dead wood area pixels which are expanded to enter the dead wood area are extracted from the image by a mouse, and the lattices to which the pixels belong are eliminated from the target cluster of the histograms and cannot be expanded any more in following expansion operations. The expansion and elimination operations are repeated until a satisfactory result is achieved.

A breeding tank for aquatic shrimps comprises a breeding tank body, insertion holes and a supporting table. Evenly-distributed through holes are formed in the bottom face and the four sides of the breeding tank body. A circle of connecting brim is arranged at the upper portion of the breeding tank body. Multiple pieces of dead wood are evenly distributed at the bottom of the inner side of the breeding tank body. The bottom of a protection box is fixedly connected with a cuboid floating body. Four connecting rings are fixedly connected with the four corners of the bottom of the floating body and connected with hinges. The tail ends of the hinges are fixedly connected to the dead wood below. The insertion holes from left to right are evenly formed in the dead wood. Cylindrical weight increasing strips are inserted in the insertion holes. Arc-shaped protruding faces are arranged at the left end and the right end of the protection box, so the impact of water flow in the protection box can be easily reduced, the service life of the breeding tank body in water can be prolonged, the use value of the breeding tank body can be improved through simple refitting, and cost is controllable.

The invention relates to a minitype rain water canning and collecting device used in the water conservation engineering technology field, wherein, the water inlet end of a first rain separator is connected with a rainwater pipe, a water storage container is arranged on the level ground, a top cover is arranged at the top part of the water storage container, a defoliator is arranged on the top cover, the water outlet is vertically arranged at the right upper part, a handing ear, an overflow pipe and a water inlet pipe are arranged on the wall surface of the water storage container, a connecting pipe is tightly connected with the water inlet pipes of the two water storage containers, and a water tap is arranged at the bottom part of the wall surface of the water storage container. The first rain separator is composed of a T-shaped pipe, a first short pipe, a second short pipe, a floating ball, a ball seat, a water dripping hole, a bottom cover and an angle head. The top cover of the invention can be opened, the opening of the water storage container is large, and the manual maintenance is convenient; the quantity of the water storage containers can be increased according the rainwater quantity, and the water resource is fully utilized; the invention has the function of removing the first rain, the tree leaf and the dead wood; the structure is simple, the investment scale is small, and the execution is easy.

A standing length of untreated deadwood timber, having a 2″-6″ diameter and an above ground length of between 3′ and 9′, has a flattened face with sets of different diameter holes drilled therein. Colorful ribbons, in addition to the aroma of the decaying deadwood, attract multiple species of native solitary bees to the bee pole to use the holes to lay eggs therein. The pole is planted 1.5 to 2′ in soil adjacent fields, gardens or orchards which need pollination.

The invention discloses an underground bionic nest for protecting Asian masked civets, which is built in a river slope and comprises a hole sinking into a river surface, and a channel slope at the hole is connected with a riverbed; the masked civet food bait is manually stacked on the river side slope on the upper side of the hole; the hole, the lying mat, the first expansion chamber and the second expansion chamber are connected through the tunnel; the inner walls of the first expansion chamber, the second expansion chamber and the tunnel are coated with slurry layers, middle reinforced concrete frameworks, polyurethane heat preservation and insulation layers and anti-aging coatings on the outer surfaces; the second expansion chamber is provided with vent holes communicated with the outside ground, and the vent holes are covered with dead wood branches for hiding. The underground bionic nest for the masked civets conforms to the actual habitat of the masked civets, and is durable in material, long in service life, high in safety coefficient and beneficial to protection of the masked civets as national first-level protection animals.

Trehalose or trehalose-6-phosphate, when applied exogenously to citrus trees that are compromised in their growth and development with the condition referred to as citrus greening or HLB, can overcome the deadly effects of the problem. Renewal of tree tissue with trehalose or trehalose-6-phosphate has been documented to begin as soon as 72 hours after exogenous application to the dying tree. The tissue renewal continues with near complete renewal of the leaf canopy, development of fruiting buds, followed by flower development and then development of the flowers into abundant and healthy fruits. Much of what appeared to be dead wood tissue could be covered with healthy new leaves within 2 to 4 months after application. Addition of defined hormones to the soil application of trehalose or trehalose-6-phosphate further enhanced development of new canopy and root tissue.

The invention discloses a quick liquid film forming agent capable of preventing pine wilt disease spreading. The quick liquid film forming agent is characterized by being prepared from 100 parts of polyvinyl butyral, 40 parts of polyamide, 1 part of hydrophobic nano silica, 5 parts of a plasticizer, 1 part of an antioxidant, 1 part of a light stabilizer, 1 part of a light absorbent and 85 parts of a solvent. A sealing film formed by the quick liquid film forming agent on dead pine wood can produce the greenhouse effect under sunlight, the temperature in the film can increase to 50 DEG C or above, and pine wood nematode and monochamus alternatus larvae in the dead wood can be killed effectively. The ratio composition is more reasonable and targeted, and the waterproof effect of the liquid film forming agent can be improved by adding the hydrophobic nano silica; the liquid film forming agent forms a film more quickly and more compactly due to addition of the plasticizer, the film forming time is effectively shortened, the sealing effect of the sealing film is enhanced, and the temperature in the film can be increased.

The invention discloses a comprehensive treatment method for controlling the bursaphelenchus xylophilus disease epidemic situation not to spread, and relates to the technical field of comprehensive prevention and control over bursaphelenchus xylophilus. The invention relates to a comprehensive treatment method for controlling the bursaphelenchus xylophilus disease epidemic situation not to spread. The method comprises the following steps: regularly patrolling the ground; removing dead trees and dead branches in time: cutting all dead trees and dead branches before eclosion of adult longhorn beetles, carrying out chemical fumigation, pesticide spraying and bagging cleaning work on stumps, the dead trees and the dead branches, and carrying out strict acceptance inspection; carrying out fixed monitoring of traps: hanging live monochamus alternatus traps as fixed monitoring points; arranging trap trees: selecting small-diameter pinus massoniana and pinus thunbergii around the trapper, carrying out girdling on tree trunks 50 cm away from the ground, and adding attractants; releasing sclerodermus harmandi; and hanging a beauveria bassiana non-woven fabric. According to the comprehensive treatment method for controlling the bursaphelenchus xylophilus disease epidemic situation not to spread, a single prevention and control measure is avoided, the prevention and control effect of bursaphelenchus xylophilus is improved, epidemic situation recurrence is avoided, and the treatment time is shortened.

The invention discloses a castor fiber-protecting bionic channel built near a barrage. The bionic channel comprises the barrage built on a river channel according to surrounding topographic lines, anda castor fiber-protecting bionic channel body built by selecting proper surrounding topographic lines for protecting castor fibers, wherein dead wood blocking sills and a gate for adjusting water level and flow are built in the bionic channel body, and salix psammophila is artificially planted at an inlet and outlet and the two sides of the bionic channel body; a water supplementing pool for supplementing water to the bionic channel body is built by selecting proper surrounding topographic lines, the water supplementing pool controls a water supply pipe to supplement water to an adjusting pool through a valve, and the adjusting pool supplements water to the bionic channel body through the gate; and meanwhile, the water supplementing pool irrigates the artificially-planted salix psammophila, and the water supplementing pool adopts a water pump and a water inlet pipe to pump reservoir water for water supplementing. The channel is simple in type, a castor fiber habitat is created, protection of the first-grade state protection animal, namely, the castor fibers, is facilitated, communication and propagation of castor fiber populations blocked by dam construction are facilitated, and the optimization and improvement of race is facilitated.

The invention discloses a mullet breeding process and a breeding feed. The mullet breeding process includes the steps that a pond with the area of 800-1200 m<2> and the water depth of 1.2-1.6 m is selected; a mechanical oxygen supply device is installed at the bottom of the pond; water in the pond is completely pumped out by using a water pumping device, and excessive sludge and weeds and dirt at the bottom of the pond are removed; a base of the pond is renovated; dead woods are put; 2-4 weeks later, fingerlings are put in the pond, wherein the putting density is 400-600 per mu, and if water source conditions are objective and micro-flowing water exists, the putting density can be increased to be 800; the feed is put, wherein the feed comprises 5-15 parts of insect powder, 10-20 parts of field snail meat powder, 10-15 parts of millet and 20-40 parts of corns, and the daily putting amount is 3%-5% by weight and mass percentage. The mullet breeding process and the breeding feed are convenient to carry out and can be suitable for large-scale mullet breeding, the mullet growth speed is high, the quality of bred mullets is high, and the economic benefits are remarkably improved.

The invention discloses a biomass particle fuel machine with vertical conical roller and conical die, and relates to biomass fuel processing equipment. The biomass particle fuel machine is characterized in that a motor reducer (20) is arranged on a machine seat (19) and connected with a main shaft (17); a middle section is connected with the conical pressing roller (15) through a bearing short shaft (10), a swing shaft (2), a cross arm (1) and an oil cylinder (5); the conical pressing roller (15) is connected with the main shaft (17) and the conical ring die (14); the swing shaft (2) is mounted on a pressure sleeve (7) through the bearing short shaft (10); a feeding hopper (9) is mounted on the upper edge of a bin (12); a feeding interrupter (13) is mounted on the outer edge of the conical ring die (14) through a feeding interrupter support roller (16); the conical pressing roller (15) is arranged on a pressing roller shaft (33); the pressing roller shaft (33) is hollow. The biomass particle fuel machine is production equipment for compacting biomass fuel (straws, fruit shells, rice husks, wood leftovers and dead wood branches) into high-density biomass fuel through extrusion force and friction heat or compressing the biomass fuel into a feed.

The invention discloses a ship with an open type novel dead wood structure, and aims to provide the ship with the open type novel dead wood structure, which is simple in structure, low in production cost, capable of reducing water flow resistance and good in sailing stability. The ship comprises a ship body (8) and a dead wood component (1), wherein a propeller (3) is arranged at the tail part ofthe ship body (8), the surface, close to the propeller (3), of the ship body (8) is an inclined surface (2), the dead wood component (1) is arranged on the inclined surface (2) and is positioned in front of the propeller (3), and the dead wood component (1) is of a hollow box-shaped structure. The invention is applied to the technical field of ship structures.

The invention discloses a pine wood nematode disease removing, treating and supervising method. The method comprises the steps of receiving image information and stump cutting image information, sentby first terminal equipment, of a whole to-be-processed diseased and withered tree after cutting down the to-be-processed diseased and withered tree; generating a number according to the whole pine and withered dead wood image information and the stump image information, and sending the number to the first terminal equipment, so that the first terminal equipment displays the number; receiving typeinformation of to-be-processed sick and withered trees, geographical position information of the to-be-processed sick and withered trees and stump ground diameter information sent by the first terminal equipment; and generating an attribute set of the to-be-processed sick and withered wood. According to the method, data recording is detailed, manual input items are few, an interface is concise, operation is easy and convenient, a data management background is strict, compared with other supervision software such as forest call and the like, the method has more advantages and is high in operability, and the intensity and difficulty of supervision and treatment supervision labor are effectively reduced.

The invention provides a technological process and gasification equipment for central gas supply by biomass gasification. A lot of waste straws, dead wood and other plant resources in rural areas are fully utilized. The involved system consists of three parts: (1) a pre-treatment system, which includes a stockpiling warehouse, a hay cutter, and a feeding machine, etc.; (2) a gas production system, which includes a pyrolysis furnace, a cooler, and a Roots blower, etc.; and (3) a fuel gas distribution system, which includes tar purification plant gas storage cabinet and a gas transportation main pipe network, a tar purifier for users, a flow meter, a stove and the like. A gasification furnace adopts a dual-fluidized bed structure to separate combustion and gasification processes, the biomass raw material undergoes cracking reaction in the reactor, and by using a cracking purification technology, the tar generated in the gasification process can crack into an available disposable gas, so that the energy contained in the tar is well recycled, and the purifying rate is high. The technological process and the equipment provided by the invention improve the gasification efficiency, reduce the pipeline blockage, and avoid secondary pollution.

The invention discloses a bionic cave for protecting beavers. The bionic cave is constructed in shore river water and comprises an ellipsoidal crown-shaped concrete base, the surface of the ellipsoidal crown-shaped concrete base is covered with a polyurethane heat preservation and insulation layer and a clay layer, the ellipsoidal crown-shaped concrete base is provided with an inlet and two escapeways, the inlet and the two escape ways are immersed in the river water, a bionic bed is built on the clay layer of the ellipsoidal crown-shaped concrete base, a polyurethane heat preservation and insulation layer and a clay layer are sequentially arranged on the inner side of the hole top reinforced concrete shell structure, dead wood branches for hiding a hole are arranged on the outer surfaceof the hole top reinforced concrete shell structure, a ventilation opening is formed in the center of the top of the hole top reinforced concrete shell structure, three lighting channels are evenly distributed on the periphery, and lighting glass is arranged on the lighting channels. The bionic cave for the beavers is simple in type, capable of creating a beaver habitat, long in service life, highin safety coefficient, beneficial to increase of the beaver livelihood industry and the population number and beneficial to national first-level animal beaver protection.

The invention provides a coriolus versicolor cultivation method. Coriolus versicolor is cultivated through the steps of stock culture, spawn culture, coriolus versicolor cultivation, mycelium culture and coriolus versicolor sporocarp culture. The coriolus versicolor cultivation method has the advantages that wild coriolus versicolor mycelia are taken from field dead wood as strains, on the one hand, the cultivation speed of coriolus versicolor can be increased, the cultivation efficiency of coriolus versicolor can be improved, the cultivation periods of coriolus versicolor can be increased, and on the other hand, cultivated coriolus versicolor can achieve the effect of wild coriolus versicolor; in the steps, the field natural growing environment of coriolus versicolor can be simulated, formation of effective ingredients of coriolus versicolor is facilitated, cultivated coriolus versicolor achieves the effect of wild coriolus versicolor, the yield is increased, heavy demands of the market can be met, the income brought by coriolus versicolor cultivation is increased, economic benefits are increased, and popularization is facilitated.

The invention discloses folium mori fermented tea and a preparation method thereof, and belongs to the technical field of bioengineering. The folium mori fermented tea is prepared from the following raw materials in parts by weight: 100 parts of folium mori and 2-10 parts of phellinus igniarius; the preparation method comprises the following steps: collecting the folium mori, removing impurities and drying; performing humidification treatment, bagging and sterilizing; inoculating with the phellinus igniarius; culturing at constant temperature and away from light; shaping according to demands,drying, sterilizing, bagging and packaging to obtain a finished product; the compound dried tea is obtained through culturing phellinus igniarius hyphae by the folium mori, not only are two effects ofthe folium mori and the phellinus igniarius compounded, but also the astringent and bitter mouthfeel of the folium mori and the dead wood taste of the phellinus igniarius are changed, the effects ofthe two are reinforced to the maximum extent, a technology is simple and feasible, the compound tea product with better health care effects is obtained, and very high market value is realized.

The invention discloses a dead wood type wooden craft vertical lamp comprising a base. A dead wood type vertical lampshade is fixedly installed at the upper end of the base. The dead wood type vertical lampshade is provided with through holes of different sizes. A plurality of lamp installation ports are arranged in the dead wood type vertical lampshade. Lamp bodies are installed on the lamp installation ports. The dead wood type vertical lampshade is formed by integrally engraving a hollow stamp. According to the dead wood type wooden craft vertical lamp, the structure that the through holes are formed in the dead wood type vertical lampshade, and the lamp bodies are installed in the lampshade is adopted, the dead wood type wooden craft vertical lamp not only can conduct lighting at night but also is a craft in a unique shape, the dead wood type wooden craft vertical lamp can further beautify the environment and improve the grade, the overall aesthetic impression is quite strong, and the dead wood type wooden craft vertical lamp is a new generation of wooden craft furniture.

The invention discloses a method for constructing a garden landscape with dead trees in spring, which comprises the following steps: (a) selecting a tree stump, digging a number of planting grooves at a designated position on the upper part of the tree stump, drilling a through hole at the bottom of the planting groove, Open the window and door, then dig out the liquid storage tank in the stump, add a siphon on the outer wall of the liquid storage tank; The bottom of the planting tank in the step (a) passes through the through hole downwards, so that its lower end enters the liquid storage tank, and the upper end stays at the bottom of the planting tank; (c) choose sandy soil, mix humus into the sandy soil, and then Disinfect and sterilize the culture soil, put it into the planting tank, put the culture solution in the liquid storage tank, make the liquid level in the siphon pipe flush with the liquid level of the liquid storage tank; (d) select plant seedlings, and then plant the seedlings into the planter. The dead trees prepared by the invention are well-arranged in spring, and the ornamental value is improved.

The invention discloses an interplanting method of dendrobium candidum and agrocybe cylindracea, and belongs to the technical field of cultivation of medicinal materials and edible fungi. The method comprises the following steps of culture of a mycelium of the agrocybe cylindracea, erection and perforation of dead wood, transplantation of the dendrobium candidum, management, harvest and the like. According to the interplanting method of the dendrobium candidum and the agrocybe cylindracea, which is provided by the invention, the agrocybe cylindracea is also produced while the dendrobium candidum is cultivated and obtained; two things are achieved at one stroke; the spatial utilization rate and the economic benefit are improved; the method provided by the method is green and environment-friendly, is simple to operate, is low in production cost, and is liable to large-scale and industrialized development.

The invention discloses a wood process dead wood type vertical lamp cover. The dead wood type vertical lamp cover has multiple through holes with different sizes; multiple lamp mounting interfaces are arranged in the dead wood type vertical lamp cover; lamps are mounted on the lamp mounting interfaces; a top through hole is formed in the top of the dead wood type vertical lamp cover; a transparent plate is mounted on the top through hole; the dead wood type vertical lamp cover is integrally carved by a hollow wood pile; and a bonsai or other ornaments can be placed on the transparent plate of the top through hole. As the multiple through holes are formed in the dead wood type vertical lamp cover, and the lamps can be mounted in the lamp cover, the illumination can be provided at night, the dead wood type vertical lamp cover is artware with unique shape, the environment can be further beautified, the grade is promoted, the overall aesthetic feeling is stronger, and the dead wood type vertical lamp cover is a new generation of wood process furniture.

The invention discloses a preparation method of dead wood for a fish tank, which is characterized by comprising the steps of material selection, cooking with water, carbonization, secondary cooking with water and the like. The preparation method of dead wood for the fish tank realizes the mass production of the dead wood and reduces the cost of the dead wood; and simultaneously the prepared dead wood has a simple and unsophisticated appearance, the water quality can not easily go bad, and the quality is excellent.

The invention discloses an interplanting method of Dendrobium officinale and Tricholoma lobayensc, and belongs to the technical field of cultivation of medicinal materials and edible fungi. The methodcomprises the steps of cultivation of hyphae of Tricholoma lobayensc, erection of dead wood and perforation, transplanting of Dendrobium officinale, management, harvesting and the like. With use of the interplanting method of Dendrobium officinale and Tricholoma lobayensc of the present invention, Tricholoma lobayensc is produced while Dendrobium officinale is cultivated, so that a double advantage is achieved and space utilization and economic benefit are improved. The method of the invention is green, friendly to environment, simple in operation, low in production cost, and easy to scale and industrialize.

The invention discloses nutrient soil and a preparation method thereof. The nutrient soil comprises the components in percentage by weight: 45-55% of vegetable garden soil, 10-20% of compost, 1-2% ofriver sand, 3-5% of plant ash, 6-8% of humus, 0.1-0.2% of calcium magnesium phosphate fertilizer, 5-7% of wood bits, 0.2-0.4% of ferrous sulfate aqueous solution, 0.2-0.4% of antibacterial agent and 1-2% of rice chaff ash. The preparation method comprises the following preparation steps: firstly, replacing old potting soil, spreading raw materials such as dead woods, fallen leaves, peel as well asfurs and bones in a layered way, accumulating the raw materials, then, irrigating human and animal excreta on the raw materials, carrying out storage for over half a year to ferment and decompose theraw materials, and carrying out mixing, smashing and sieving to obtain a compost; secondly, sequentially filtering and drying the vegetable garden soil; and thirdly, adding the compost obtained in the first step into the vegetable garden soil obtained in the second step, then, sequentially adding the river sand, the plant ash, the rice chaff ash and the humus, and carrying out uniform stirring and mixing to obtain a prefabricated material. The nutrient soil is not easy to harden when being dried, good in ventilation and water permeability, capable of promoting the growth of crops, relativelylow in cost and convenient to prepare.

The invention provides a dead wood trunk injection bacteria solution for preventing and controlling dendroctonus armandi. The dead wood trunk injection bacteria solution is prepared from the followingcomponents in parts by weight: 60-78 parts of a nutrient solution, 5-17 parts of a stabilizer, and 20-30 parts of beauveria bassiana. Pinus armandii withering wood is used as a control object, the bacteria solution is immobilized by adopting a trunk injection way, a bactericide is not adsorbed, and slowly flows outward and enters bark cracks, and spores can spread on a whole trunk, so that dendroctonus armandi on the trunk can be killed, and meanwhile, the trunk is used as a spore spreading body, and a large amount of spores quickly spread in a whole forest, so that the diffusion of dendroctonus armandi is effectively controlled; and the dead wood trunk injection bacteria solution has the advantages of remarkable pest control effect, stable quality, long-acting prevention, no weather influence and low cost, saves manpower and material resources, provides a new way for preventing dendroctonus armandi and other trunk-boring pests, and can be popularized and applied in vast forest zones.