318results about How to "Improve seedling efficiency" patented technology

The invention belongs to the technical field of plant seedling culture, and discloses a seedling growing method for oil expression peony seeds. The method comprises measures of collection and processing of the oil expression peony seeds, seed storage, seedbed preparation, sowing and seedling raising, management after transplantation, and the like. Compared with the prior art, the method has the advantages that the seed processing time is short, the seed processing method is simple, the emergence of seedlings is tidy, the emergence rate is high, the seedling survival rate is high, the seedling raising cost is low, no season influence of transplantation after seedling survival exists and the like.

The invention discloses a fast tissue culture reproducing method of actinidia eriantha, belonging to the technical field of plant tissue culture. The method comprises the following steps: (1) tissue culture medium preparation; (2) explant selection and sterilization; (3) inducing culture; (4) proliferation culture; (5) rooting culture; (6) tissue culture plantlet acclimatization and transplant, and the like. The fast tissue culture reproducing method has high culture medium pertinence and good applicability, the inductivity of an initial sprout of an explant reaches more than 80 percent, the proliferation rate of a successive sprout reaches 2-7 times, the plantlet height can reach 2-5 centimeters for 20-30 days, the quality of tissue culture plantlets is enhanced, the rooting rate reachesmore than 95 percent, and the transplant survival rate reaches more than 95 percent. The invention can be popularized and applied to fruit tree plantlet enterprises.

The invention provides a method for grafting carya illinoensis, the grafting temperature and humidity as well as stock and scion seedling cultivation before the grafting are strictly controlled, and the method is realized through the following steps of: building a potting cutting orchard, cultivating the stock and automatic temperature control and humidity control grafting; and because the control of the key carya illinoensis grafting links is reinforced, temperature difference between day and night is eliminated, the scion and the stock cut are prevented from expansion with heat and contraction with cold due to the temperature difference, enough water is ensured, the grafting failure due to the water loss of a scion bud is avoided, the grafting survival rate of the carya illinoensis can reach above 85%, and a better horticulture foundation is laid for successfully marketing the carya illinoensis.

The invention relates to an end actuator of a dry land plug tray seedling transplanter. The end actuator is characterized by comprising a camshaft bracket (1) connected to a mechanical arm of the transplanter; a row of completely same seedling clamping devices is installed at the lower end of the camshaft bracket (1) in parallel; and each set of seedling clamping device is composed of a cam (14), an ejector rod (10), a wedge-shaped block (9), a pressure spring (11), an ejector rod bracket (13), a seedling claw opening and closing push rod (8), a tension spring support rod (5), a tension spring (6) and two seedling-taking claws (7). The end actuator disclosed by the invention has the advantages of being simple and compact in integral structure, convenient for assembly and disassembly and high in transplanting efficiency and is capable of taking seedlings in whole rows.

The present invention discloses no-shell filament cell laver seedling growing process. In the laver seedling growing room, and inside the culture container in the optimized temperature, lighting, nutritious and water motion conditions obtained through experiment, the cultured suspension filament cells are controlled to grow to the cell density of 5-10 g / L synchronously. The culture container is box on shelf. In the later stage, the great amount of cell generated conchospores are collected and transferred into sieve net bag, and cells are flushed with flow water at night so as to spread great amount of conchospores in the day. The present invention makes it possible to grow laver seedlings in large scale, high efficiency and low cost. The process is suitable for cultivating laver of different varieties.

The invention relates to a soilless seedling compound substrate formula for solanaceous fruit vegetables, namely a soilless seedling compound substrate formula by replacing peat with mushroom residue parts of cottonseed hulls. The waste cottonseed hulls after edible mushroom planting are subjected to pretreatment such as retting fermentation, air drying, smashing, sieving and the like, and are fully and uniformly mixed with the peat and vermiculite according to a ratio of the cottonseed hull to the peat to the vermiculite (with the diameter of about 1 mm) of 1:1:1 (v / v) to form the compound substrate special for raising seedlings. Compared with the conventional seedling substrate with a ratio of the peat to the vermiculite of 2:1 (v / v), the substrate is suitable for the soilless seedling for the solanaceous fruit vegetables, has the advantages of resource saving, cost reduction, safety, environmental protection, no pollution, effective improvement of seedling quality and efficiency and the like, and is favorable for improving the cost-saving, high-efficiency and sustainable development of industrialized seedling raising.

The invention discloses a tissue-culture rapid propagation method for pyrus betulaefolia bunge. The tissue-culture rapid propagation method for the pyrus betulaefolia bunge comprises disinfecting on explants, inducing buds, propagating test tube seedlings, inducing calluses, inducing rooting and transplanting exercising seedlings. During the process of inducing rooting, the calluses are firstly induced and then the rooting is induced; obtained rooting test tube seedlings are performed seedling exercising in a triangular flask, then transferred to perlite to domesticate the exercising seedling and finally transplanted. Compared with the traditional method, the tissue-culture rapid propagation method for the pyrus betulaefolia bunge has the advantages of being high in rooting rate and survival rate of transplanting, high in propagation rate, low in cost, convenient to popularize, good in genetic stability and suitable for the pyrus betulaefolia bunge.

The invention discloses an end executor of a potted vegetable seedling supply mechanical hand. The end executor comprises a step motor, a shaft coupling, a supporting plate, supporting rods, a lead screw, a spiral slide sleeve, a lifting block, connecting rods, guide rods, a guide plate, a seedling withdrawal plate and seedling shovels, wherein two ends of each of the four supporting rods are connected with the supporting plate and the guide plate respectively, and two ends of the lead screw are mounted in the center of each of the supporting plate and the guide plate through bearings and connected with an output shaft of the step motor through the shaft coupling; the seedling shovels are fixed on the guide rods, the four guide rods penetrate through the guide plate and form a moving pair together with the guide plate, one end of each of the four connecting rods is connected with the lifting block through a hinge, and the other end of each of the four connecting rods is connected with each of the four guide rods through a hinge; the seedling withdrawal plate is fixed below the guide plate. The four seedling shovels extend into a hole to basically form a wrapped-type structure, so that a loose seedling substrate or a cotyledon-stage potted seedling in the hole can be completely taken out; same-age cotyledon-stage potted seedlings are moved into holes through cooperation of the seedling shovels and the seedling withdrawal plate, so that the seedling supply is realized, the seedling-raising efficiency is improved, and a technical support is provided for automated transplantation of potted vegetable seedlings.

The invention relates to a cultivation method of economic seaweed, in particular to a full-artificial seed cultivation method for sargassum horneri. Concretely, the method comprises the following steps: selecting male and female sargassum horneri parent strains with good pyrenium growth to be cultivated for 10 to 20 days under the conditions that the illumination intensity is between 2500 and 10000 luxes and the temperature is between 10 and 16 DEG C for realizing the synchronous sexual development and sexual maturation of the sargassum horneri so that ova and sperms are discharged synchronously for impregnation; completing the collection and the seedling distribution of germ cells in 10 to 24 hours after the impregnation; carrying out static cultivation for 2 to 4 days after the seedling distribution; and maintaining the water flowing under the condition of the illumination intensity between 400 and 8000 luxes for completing the cultivation. The seed cultivation process of the invention is carried out in an artificial cultivation system, so the impregnation rate can be further and greatly improved, the spatfall efficiency and the full-artificial seed cultivation efficiency can be improved.

The invention discloses a method for improving the propagating efficiency of catalpa bungei grafting rootstocks and belongs to the field of propagation of elite tree species. In the process of catalpa bungei grafting during rootstock cultivation with sowing and seedling raising, part of seedlings cut off from the upper part of a catalpa seedling for producing the rootstock carries out cutting propagation, and the seedlings can be used for grafting the rootstocks after one year; in other words, besides the first-time rootstock production with sowing and seedling raising, the rootstocks are obtained by raising seedlings by cutting of part of seedlings cut off from the upper part of a rootstock block, and the method is circularly applied to the grafted propagating of catalpa bungei. The cycle of raising seedlings by cutting achieving the condition of producing the grafted rootstocks is one year, and the regular two-year cycle of sowing and seedling raising is shortened by one year, so that the seedling raising efficiency is greatly improved, and the rate of survival of seedling raising is greatly increased. The cut off catalpa stems after producing the grafted catalpa rootstocks are fully utilized, so that the resource waste is avoided, and the seedling raising cost of rootstock production is reduced. Therefore,, the quick rootstock cultivation is realized, and the propagating efficiency of catalpa bungei grafting is greatly improved.

The invention discloses a cuttage seedling culture method of photinia serrulata. The method includes the steps of 1, preparing a seedbed, wherein a single plastic greenhouse with an external shading net is adopted for cuttage, the seedbed is made after the ground in the greenhouse is leveled, baffles are arranged around the seedbed, ultraviolet lamps are evenly arranged at the top in the plastic greenhouse, a cuttage medium is prepared from camellia seed husk powder, folium artemisiae argyi powder, yellow soil and fine sand in a mixing mode, the seedbed and the cuttage medium are irritated by the ultraviolet lamps at intervals before cuttage and then covered with a plastic film, and water is sufficiently sprayed to the seedbed for cuttage; 2, performing cuttage of cuttings, wherein semi-lignified shoots or lignified current-year branches are selected as the cuttings, the cuttings are treated with a rooting agent before cuttage, soil is sufficiently irrigated with oxygen-rich water immediately after cuttage, a carbendazim and thiram mixed solution is sprayed to leaf surfaces for disinfection, and then the ultraviolet lamps are turned on for irradiation; 3, performing post-cuttage management. By means of the method, diseases such as gray mold and the leaf spot disease or pests such as coccid can be reduced in the cuttage propagation process of photinia serrulata, the cuttage propagation efficiency can be improved, and the survival rate can be increased.

The invention relates to a method for breaking south Chinese yew seed dormancy. The method is characterized in that south Chinese yew seeds are processed by changing temperature and comprises the following steps of: a, immersion; b, storage; and c, sowing. The invention aims to solve the problems of long cultivation period, high cost and great technical difficulty for south Chinese yew introduction, and provides a simply-operated method for breaking the south Chinese yew seed dormancy at low cost. According to the invention, by the adoption of the method for breaking the south Chinese yew seed dormancy, emergence rate during the sowing year can reach 30%, and seedlings can emerge by 50% during the next year. Therefore, by the adoption of the method, seedling growing efficiency is raised.

The invention discloses a method for rapidly cultivating early shaping tissue culture commodity seedlings of blueberries, and belongs to the technical field of tissue culture fast propagation and cultivation. The method for rapidly cultivating the early shaping tissue culture commodity seedlings of the blueberries includes: preprocessing tissue culture materials in a field; performing two steps of disinfection on separate auxiliary buds; performing induction cultivating on the separate auxiliary buds; performing subculture multiplication cultivating; performing transplanting twice, wherein transplanting bottle seedlings firstly, and then transplanting rooted seedlings; shaping tissue culture seedlings at an early stage. The method for rapidly cultivating the early shaping tissue culture commodity seedlings of the blueberries solves the technical problems that introduced seedlings are high in pollution rate, explants are serious in death rate, effectively seedling introduction rate is low, production cost is high, the blueberries need to be reshaped after being planted in soil, seedling culture and production cycles are long and the like in common tissue culture of the blueberries, shortens acquisition time of shaping high quality seedlings of a splitting type tree with 3-5 branches by 16.7-31.7 days, improves tissue culture effective seedling introduction rate by 85.39%, reduces production cost, and is high in seedling culture efficiency.

The invention belongs to the technical field of agricultural mechanized transplantation, and particularly relates to a seedling sending, taking and delivering device for a pressing type seedling taking full-automatic seed tray seedling transplanter. The device comprises a rack, a seedling sending mechanism and a seedling taking and delivering mechanism; the seedling sending mechanism comprises a lead screw driving motor, a chain driving motor, a sliding rail, a side plate, a chain, a front bottom plate, a driven shaft, a driving shaft, a rear sliding rail support, a sliding rail sliding block,a rear bottom plate, a first connecting beam, a ball lead screw, a lead screw sliding block, a second connecting beam, a third connecting beam and a front sliding rail support; the seedling taking and delivering mechanism comprises a seedling taking plate, a cylinder mounting plate, a seedling pressing rod, a seedling pressing cylinder and a seedling guide tube. Accordingly, pot seedlings are taken out from the lower portion of a seedling tray, seedling delivering is conducted directly, and the seedling taking process and the seedling delivering process are combined into a whole, and the efficiency is higher.

The invention relates to the field of the kiwifruit cultivation, in particular to a kiwifruit top-grafting method. Wild kiwifruits which are relatively high in disease and pest resistance and relatively wide in adaptability and grow strongly are cultivated in a kiwifruit production orchard, through reasonable water and fertilizer management, strong stock is cultivated according to a normal kiwifruit cultivation and shaping technology, two strong branches are maintained at the position, 1.8 m away from the ground, of a main stem of the stock and extend along the two ends of a pull wire of a cultivation frame, strong side branches on the branches are maintained, and unnecessary branches of the main stem are removed. According to varietal characteristics of kiwifruits, kiwifruit scions with good adaptability and high economic benefits are selected to be subjected to top grafting at the ends of the branches, the purposes are achieved that the kiwifruits in the orchard bloom and fruit in the same year and are put into production, wild stock grows strongly, the high yield of the kiwifruits is promoted, and at the same time the survival rate of kiwifruit cultivation is increased.

The invention relates to the technical field of Machilus pauhoi cultivation, in particular to an efficient cultivation method of seedlings through light matrix mesh bags. According to the technical scheme, the method comprises the steps that seeds which are collected and peeled between the middle ten days of June and the first ten days of July are sown on a prepared sand bed, the seeds are covered with 1.5 cm sand, and the seeds are kept moist after being sown; after one to two main leaves of each bud seedling are grown, the seedlings are transplanted to the light matrix mesh bags, and the seedlings are watered with root fixing water; leaf fertilizer is sprayed in 30 days after transplanting; first root compound fertilizer application is conducted in 40 days after transplanting, and compound fertilizer is applied in every other 20 days. According to the efficient cultivation method, the average stems of half year nursery stock can achieve 2.8 mm, the seedling height can achieve 28.4 cm, the maximum height can achieve 46.6 cm, the seedlings are used for afforestation on mountains, the seedling cultivation cost is obviously lowered, and the seedling cultivation benefits are improved.

The invention discloses a plug seedling ejecting and picking apparatus capable of protecting pot bodies. The apparatus comprises a pressing plate, a base, a seedling picking shovel and pot protecting holders; the pressing plate comprises a handle, a crossbeam and an external frame; the base comprises a base plate as well as positioning pins and ejecting pins which are fixedly installed on the base plate; the pot protecting holders are placed at the bottom of a plug tray before seedling production, when the plug seedlings are ejected, pot bodies and roots of the plug seedlings can be protected, so that plug seedlings are vertical and seedlings can be rapidly ejected. The apparatus has simple structure and operation convenience, after the plug tray of the plug seedlings can be fixed to a correct position by the positioning pins, the pressing plate is placed over the plug seedling, the pressing plate external frame and an external edge of the plug tray are aligned, and at the same time damage on branches and leaves of the plug seedlings due to pressing can be avoided, the plug seedlings can be smoothly ejected by pressing the pressing plate, the ejected plug seedlings are kept vertical, so that the seedling picking shovel can be used for rapidly picking seedlings; seedling picking efficiency is greatly improved, pot soil and pot seedling roots of the plug seedlings can be protected, efficiency of transplanting work and survival rate of the plug seedlings are transplanting are improved, and soil environment is not polluted.

The invention relates to an orchard seedling lifting device. The device comprises a machine frame, a seedling lifting shovel and a land wheel, wherein a suspension mechanism used for being connected with a power machine is arranged at the front end of the machine frame; the seedling lifting shovel is fixedly arranged on one side of the machine frame, and an acute angle is formed between the seedling lifting shovel and the ground; the land wheel is disposed at the rear end of the machine frame. The orchard seedling lifting device is hung on the power machine through the suspension mechanism at the front end of the machine frame, the land wheel supports the rear end of the machine frame, in the process of moving forward along with the power machine, the land wheel rotates to drive the machine frame to move forward along with the land wheel, at the same time, the seedling lifting shovel fixedly arranged on one side of the machine frame and forming the acute angle with the ground deeply enters soil, seedlings needing to get out of a nursery are shoveled out and falls on the rear portion, and seedling lifting is completed. Under the drive of the power machine, the orchard seedling lifting device can achieve lifting of one row of seedlings at a time, seedling lifting quality tends to be consistent, and the seedling lifting efficiency is greatly improved.

The invention discloses an intelligent control system for plant non-tube rapid propagation based on the Internet of Things. The intelligent control system comprises a central control terminal, one or more controllers, one or more sensors, one or more actuators, one or more servers and one or more user networking terminal devices, wherein the central control terminal is connected with the one or more user networking terminal devices through the Internet and the one or more controllers and servers through a communication module respectively, the one or more servers are connected with the one or more user networking terminal devices, and the one or more controllers are connected with the one or more sensors and actuators respectively through a communication network. The intelligent control system for plant non-tube rapid propagation based on the Internet of Things adopts automatic and intelligent control and the Internet of Things technology and has the advantages of being rapid and convenient to visit and manage, precise in control, energy saving and emission reducing, and low in device and management cost; and capable of achieving efficient management, inquiring growth conditions of planted crops in real time, remotely monitoring operating conditions of devices and environmental data and remote configuration and adjustment of parameters of monitored devices and the like.

The invention discloses a method for producing trichosanthes tissue culture seedlings. The method comprises the following steps: (1) collecting single-node stems with axillary buds from strong trichosanthes plants, and performing conventional disinfection and sterilization; and (2) cutting the stems into an MS improved solid medium added with LFS for performing trichosanthes tissue culture seedling production, wherein the formula of the MS improved solid medium is 0.1-0.5mg.L<-1>(MS+LFS). The MS improved solid medium can induce explants to directly grow to the trichosanthes tissue culture seedlings with complete into roots and buds. The method disclosed by the invention has the advantages of simple production procedure, high tissue culture seedling quality and low cost.

The invention discloses a double-tray combined type plant tissue culture transparent container which comprises an upper tray, a lower tray, a ventilation filtering device, a locking mechanism, a sealing device, a liquid inlet hole, a liquid outlet hole, a culture sieve plate and a bracket, wherein the sealing device, the liquid inlet hole, the liquid outlet hole and the culture sieve plate are closely combined with one another. The container is capable of conveniently obtaining the culture conditions such as sterility, illumination, air, relative humidity, nutrition supply and the like which are needed by plant culture; and the container is proper in volume and is convenient to disassemble and store, and can be used for not only overcoming the defects of high equipment cost, easy pollution caused by inoculation and difficult moving of a large container, but also overcoming the defects of high production using cost, narrow interior space, poor air permeability, complicated working procedures and the like of the traditional small container. Therefore, the industrialized production cost of plant tissue culture can be effectively lowered, the seedling cultivation link of the plant tissue culture is fundamentally simplified, and the economic benefit of seedling breeding is greatly improved.

The invention relates to a seedling-raising body preparation device based on a seedling-raising-bag seedling raising method. The seedling-raising body preparation device comprises a machine frame; a digging shovel, a first lifting transport component, a soil-fertilizer mixing component, a second lifting transport component and a multi-station seedling-raising component are sequentially arranged onthe machine frame from front to rear. The invention also relates to a working method of the seedling-raising body preparation device based on the seedling-raising-bag seedling raising method. The seedling-raising body preparation device provided by the invention is not only simple and reasonable in structure design, but also improves the seedling raising efficiency, is highly efficient and convenient, and has a broad application prospect.

The invention relates to a seedling cultivation method for eustoma russellianum, and belongs to the technical field of flower and plant planting. The method includes the steps that a, according to preparation of a matrix, perlite, peat wood, humus soil and organic fertilizer are evenly mixed according to the weight ratio of 5-10:1-3:1-3:1-3, so that the matrix is obtained; b, according to seeding, coated seeds of the eustoma russellianum are taken and placed into the matrix; c, according to fertilizer application and watering, nitrogen-phosphorus-potassium mixed fertilizer of which N:P:K is 3-7:1-3:1-3 is applied, and a drip irrigation mode is adopted for watering, so that fertilizer application and watering are completed. The seedling cultivation method has the advantages of being capable of increasing the percentage of seedling emergency and the quality of seedlings.

A root-promoting and cutting seedling culture method for Fu'an brier grapes includes the steps of firstly, collecting and sterilizing, wherein collecting time is set before the end of late January; secondly, cutting cuttings; thirdly, performing dipping treatment; fourthly, performing root-promoting culture in a hotbed, wherein a seedling culture bed is set as that a first layer is formed by spreading rice husks or sawdust 10cm in thickness and covering with a mulching film, a second layer is formed by covering the mulching film with fine sand 5cm in thickness and laying soil heating lines on the fine sand, and a third layer is formed by spreading sandy vegetable garden soil 15cm in thickness and with 60%-65% of moisture content, the temperature of the hotbed is controlled between 25 DEG C and 28 DEG C, the moisture content of the hotbed is controlled between 60% and 65%, indoor room temperature is controlled to be 10 DEG C, humidity is controlled between 50% and 70%, a callus is formed after promoting a root for 18-22 days, and after promoting the root for another 9-11 days, entering a step five of transplant and greenhouse culture in late February when the new root grows 1-2cm taller; fifthly, performing transplant and greenhouse culture, namely, continuing culture until five leaves sprout prior to outplanting. By the aid of the root-promoting seedling culture technology, seedling culture survival rate is increased to be 75%.

The invention provides a simple and effective planting method for vetiver at a severe environment, which comprises the following steps: selecting a 1-2-year good-quality vetiver seed source 2 months before transplanting; retaining the length of the root system to be about 5cm and the length of the aboveground part to be 20cm to 25cm after the trimming; dividing a large cluster of vetiver seedlings into clusters with not less than 6-8 strains per cluster along easy-separation positions; putting the vetiver seedlings in plastic bags filled with fine clay substrates for cultivation until stems and leaves grow healthy and strong and fibrous roots are sufficiently developed; and hardening the seedlings for 1-2 times. Plastic films are adopted to cover the seedlings after the transplanting, and the films cannot be removed completely until external environmental conditions are improved and young leaves and new roots grow. In the invention, the situation that the planting of the vetiver is restricted by climatic factors (such as temperature and water content) or irrigation conditions of planting points for a long time is broken, and perennial construction is realized; moreover, the technological measure is simple; a normalized seedling mode is easy to form; the stable quality and the consistency of the seedlings are ensured; the survival rate is as high as over 95% in the high temperature summer season in large-area production and application; and the survival rate of anti-season planting also reaches over 85%.

The invention discloses an apparatus for mist cultivating strawberry stolon seedlings and a mist cultivating method, which relate to the strawberry stolon seedling cultivation and especially relate to an apparatus for mist cultivating strawberry stolon seedlings and mist cultivating method for improving reproduction efficiency of the strawberry stolon seedlings through mist cultivating way. The apparatus for mist cultivating the strawberry stolon seedlings is characterized in that the apparatus comprises an arched shed, a nutrient solution supply device and an arched shed cover device; the arched shed cover device covers on the arched shed; the mist cultivating method comprises: (a). promote strawberry stock plants to generate roots; (b). plant the stock plants; (c). and harvest stolon seedlings. According to the invention, the strawberry stock plants are planted on the top portion of an arched frame; the nutrient solution below the arched frame is sprayed on the stock plant roots in a mist way, thus the roots of the stock plants can be cultivated and grow under the mist environment; and based on the properties of indeterminate growth of the mist cultivated plant roots and by reasonably regulating the nutrient solution, the roots are promoted to grow rapidly, thus improving the seedling cultivating efficiency.

The invention relates to an umbelliferae traditional chinese medicinal material soilless raising seedling composite matrix formula, which is the soilless raising seedling composite matrix formula that the industrial and agricultural production waste such as oyster mushroom dreg, rotted leaf, and slag and the like is used to replace turf. The formula comprises the following steps: utilizing waste mushroom dreg after planting the edible mushrooms and environmental sanitation rubbish rotted leaf; pre-processing through stack retting fermenting, air drying, smashing, sieving and the like; and adding the industrial waste slag by crushing and sieving; matching according to a proportion that the mushroom dreg : to the rotted leaf: to slag is equal to 1:1:1 according to volume to volume; and fully mixing uniformly, thereby therefore the umbelliferae traditional chinese medicinal material seedling special composite matrix is formed. Compared with the current common turf seedling matrix, the formula has the advantages of saving resources, reducing cost, removing rubbish; , is safe and environment friendly; , has no pollution and can effectively improve the seedling quality and efficiency and the like; , and is suitable for the umbelliferae traditional chinese medicinal material soilless raising seedling; , and is in favour of promoting industrialized seedling production, saving cost and efficient and sustainable development.

The invention belongs to propagation expanding protection technologies of plant resources, and particularly relates to a method for quickly breeding rare specific tea germplasm. The method for quickly breeding the rare specific tea germplasm comprises the following steps of 1, scion collection and freshness retaining; 2, grafting and management; 3, management after grafting; 4, scion maintenance, collection and freshness retaining; 5, cuttage; 6, management after cuttage. Grafted new branches are directly taken as cuttage scions, the features of quick growth of grafting are utilized for propagation expanding of the cuttage scions, and the number of seedlings formed through cuttage seedling raising is guaranteed.

The invention relates to an aquatic feed additive, in particular to a method for improving the survival rate of Larimichthys crocea larvae, a feed, a preparation method and application thereof. The method comprises that the starch content in the feed for Larimichthys crocea larvae is reduced and the fat content is increased to make the starch content <=6%and fat content >=15% in the feed; preferably, the starch content is 5-6% and the fat content is 15-16% in the feed for Larimichthys crocea larvae. The feed for Larimichthys crocea larvae provided by the invention has the advantages that, based on the demand of Larimichthys crocea larvae for the energy substance, the nutrition control method is adopted, and the test proves that the feed can enhance the fish body constitution, accelerate the ingestion speed, improve the survival rate, promote growth, and improve seedling raising efficiency of Larimichthys crocea larvae.

The invention relates to a method for preparing a light matrix by using ageratina adenophora, belonging to the field of a forestry biotechnology and aiming to provide the method for preparing the light matrix by using the ageratina adenophora. The technical scheme is that the method for preparing the light matrix by using the ageratina adenophora comprises the following steps of: a, mixing; and b, fermenting. According to the method, the ageratina adenophora is prepared into the light matrix for plant cultivation, and a new approach is provided for effective utilization of the ageratina adenophora.