38 results about "Hickory Tree" patented technology

The invention provides a pesticide film forming agent used for controlling diseases and insect pests of forest trees, and its preparation method. The pesticide film forming agent comprises 0.5-10% of an active component, 0.5-10% of a film forming aid, 5-15% of a solvent, 5-15% of an aid and 50-80% of water; and the active component is one of or a mixture comprising several of tebuconazole, difenoconazole, propiconazole and emamectin benzoate. The drug film forming agent has a good control effect on the diseases and insect pests of the forest trees, has a low price, is convenient to use, and has a good control effect on the dry rot diseases of hickory trees, the canker of various trees, stalk longhorn beetles and bark beetles, leaf aphids, red spider mites and the like especially; the drug film forming agent reduces the active component volatilization and loss possibility and changes the release performance, so the residual period is prolonged, the drug dose and the dosing frequency are reduced; and the drug film forming agent reduces the toxicity of highly toxic pesticides, reduces the acute toxicity of pesticides, reduces the drift of the pesticides, and mitigates the pollution to the environment and the hazard to crops.

The invention discloses an organic fertilizer used for controlling hickory canker disease. The organic fertilizer is prepared from the raw materials of, by weight, 40-60 parts of traditional Chinese medicine dreg, 50-70 parts of crop straws, 0.5-1.5 parts of a fertilizer synergist, 3-7 parts of urea, 0.5-2 parts of a straw fermentation inoculant, 1-2 parts of cellulase, and 1-2 parts of brown sugar. The invention also provides a preparation method of the organic fertilizer used for controlling hickory canker disease. With the organic fertilizer, botryosphaeria dothidea activity can be substantially reduced, and hickory tree canker resistance can be enhanced. The organic fertilizer also contains organic matters, nitrogen, phosphorous, potassium and various medium and trace elements necessary for plant growth. The nutrition is comprehensive and balanced. With the organic fertilizer, soil physiochemical properties can be substantially improved, plant root system growth can be promoted, soil microbial activity can be enhanced, and soil harmful substance pollution can be reduced.

The invention discloses a dry rot treatment method of hickory trees. The method includes the steps that firstly, physical and chemical improvement is carried out, wherein seabed coral powder containing trace minerals is scattered in soil for planting the hickory trees; secondly, organic microorganism improvement is carried out, wherein organic fertilizers are applied to the soil after fruits of the hickory trees are picked, in the germination stage of the hickory trees, in the fruit growth stage of the hickory trees and in the chemical maintenance stage of the hickory trees respectively; thirdly, organic fertilizer and inorganic fertilizer improvement is conducted, wherein organic and inorganic combined natural high-purity calcium-containing minerals and fermented cow dung are used for acid reduction of the soil, and a first combined fertilizer is applied; a second combined fertilizer with a high-buffering-capacity material added is applied; a third combined fertilizer inoculated with a high-quality microbial flora is applied; a fourth combined fertilizer with calcium, magnesium and silicon added is applied; a fifth combined fertilizer combining an organic fertilizer containing a humic acid material with a silicon fertilizer special for plants is applied; fourthly, underwood planting improvement is carried out, wherein plants of other species are planted under the hickory trees.

The invention relates to a sustainable development planting method based on carya illinoinensis. The method includes the steps: 1) field selection; 2) soil improvement; 3) carya illinoinensis planting; 4) peanut planting: planting peanuts between lines of the carya illinoinensis from late March to early April, harvesting the peanuts in the middle of August, and deeply turning peanut straws into the soil or laying the peanut straws on the peripheries of carya illinoinensis trees after the peanuts are harvested; 5) buckwheat planting: planting buckwheat in the late August after the peanuts are harvested, harvesting the buckwheat in the middle of November, and deeply turning buckwheat straws into the soil or laying the buckwheat straws on the peripheries of carya illinoinensis trees after thebuckwheat is harvested; 6) broad bean planting: planting broad beans in late November after the buckwheat is harvested, and deeply turning broad bean vines into the soil in the middle of March of thenext year; 7) planting the peanuts in late March of the next year, and circularly planting crops according to the step 4) to the step 6) until a pecan orchard reaches a high-yield stage. The method effectively solves the problem that the early stage of a carya illinoinensis orchard does not have economic benefits, and a sustainable development planting mode is formed.

The invention discloses a hickory fruit harvesting machine. When the hickory fruit harvesting machine disclosed by the invention is used for picking the hickories, branches need not to be knocked to enable the hickories to fall off, and a control switch is pressed down, so that a first roller and a second roller clamp the branches and a flexible rod is pushed, so that the first roller and the second roller shift; and the rollers further roll while shifting to extrude the hickories on the branches. A collecting device is placed under a hickory tree, the hickories fall onto a tarpaulin, a collecting bag is arranged at the inclined end of the tarpaulin, and the hickories will slide down as the tarpaulin is obliquely laid down and slide into the collecting bag, and people can directly take away the collecting bag, so that the hickory fruit harvesting machine is quite fast and convenient. An inner tube and an outer tube of the flexible rod are arranged, so that the length of the flexible rod can be adjusted, and therefore, picking staff can pick the hickories far and near.

The invention discloses a pesticide and fertilizer application method for carya illinoensis through root irrigation, leaf spraying and stem smearing. The method is characterized by comprising the steps of root irrigation, leaf spraying and stem smearing. The carya illinoensis is subjected to root irrigation operation by using an aqueous solution of paclobutrazol, and a microbial fertilizer is mixed with water and then is irrigated to roots of the carya illinoensis; the carya illinoensis is subjected to leaf spraying by using a growth regulator, potassium dihydrogen phosphate and a nitrogen, phosphorus and potassium compounded fertilizer are sprayed, domestic animal manure is applied as a basal fertilizer, and a controlled-release fertilizer is sprayed to leaves of the carya illinoensis monthly; stems of the carya illinoensis are smeared with a kinetin solution once monthly so as to promote the coarse growth of nursery-grown plants; a fruit tree special fertilizer is applied in a fruit swelling stage, urea is sprayed at a primary stage and later stage of growth, and fertilizer application is carried out on fruiting trees 2 to 3 times every year; and overwintering water and germination water are sufficiently irrigated in winter, timely drainage and waterlogging control are required in a raining period, more water is saved by adopting a bottom infiltrating irrigation technology compared with upside sprinkling irrigation, and the utilization efficiency of moisture is increased.

The invention belongs to the field of walnut planting, and particularly relates to a grafting method of Chinese hickory trees. The method specifically comprises the following steps: (1) selecting andtreating Chinese hickory scions; (2) selecting and treating stocks; (3) carrying out grafting; (4) wrapping grafting notches; and (5) carrying out management after grafting. According to the method disclosed by the invention, the scions and the stocks are treated by using a grafting treatment solution, so that the affinity between the scions and the stocks can be improved, and the grafting survival rate is improved; and the grafting notches are wrapped with the grafting treatment agent and a polytetrafluoroethylene microporous film, so that sufficient nutrients can be provided for the growth of the scions, permeability of the polytetrafluoroethylene microporous film is improved, and the scions survive more easily. Through the grafting method of the Chinese hickory trees, the survival rateis high and can reach 93% or above, and later management is simpler.

The invention discloses an adjusting device for planting seedlings of Carya illinoinensis (Wangenh.) K. Koch and an adjusting method of the adjusting device. The adjusting device includes an installation table, four bottom moving bases, a turntable of a cuboid structure, a rear connecting plate, an upper loading plate and a first hydraulic cylinder, wherein the installation table is of a cuboid structure, the bottom moving bases are vertically arranged at four corners of the bottom of the installation table, and a first motor is arranged in the middle of the upper part of the installation table. The adjusting device has the advantages that a pushing top plate is driven to extend by a second hydraulic cylinder which is arranged on both sides of each surrounding clamping frame, both sides ofa seedling is clamped tightly by two extending top plates through rubber pads separately, and then bilateral adjusting movement of a pushing correction table is driven by a second motor on a second buckle clamping holder through rolling of gears in a rolling groove of a second clamping rail, and the seedling is movably adjusted for correction through combination of fore-and-aft adjustment of thepushing correction table which is driven by a first buckle clamping holder, so that it is ensured that the seeding is planted more vertically, and the extension direction of the growth height of the seedling is more accurate and suitable; and the device has high degree of automation during correction of the seedlings of Carya illinoinensis (Wangenh.) K. Koch, and through application of the device,time and labor are saved.

The invention discloses a hickory nut root disease control method, and belongs to the technical field of seedling disease and pest control. The method comprises the following steps: dividing root diseases of hickory nut trees into three levels according to the degrees of disease severity; carrying out soil loosening; carrying out pouring or filling holes with a fertilizer-pesticide mixed solution; and solarizing the soil. The method has the advantages of practicability and wide active range, and often shows consistent performance in agriculture compared with a biological treatment method.

The invention belongs to the field of carya illinoensis planting, and particularly discloses a long-acting fertilization method for carya illinoensis. The long-acting fertilization method comprises the following specific steps of S1, outwards expanding by 10 cm-20 cm by taking a trunk of the carya illinoensis as a center, and dividing into a circular fertilization area; S2, arranging a circle of isolation cover around the circumferential line of the circular fertilization area, inserting the isolation cover into the ground by 3 / 5 of the height, and enabling the remaining 2 / 5 part of the isolation cover to extend out of the ground; S3, arranging a circle of fertilizer retention device of a conical structure along the outer periphery of the trunk of the carya illinoensis in the circular fertilization area; S4, paving a humic layer with the thickness of 3 cm-5 cm on the ground below the fertilizer retention device, and then paving a permeable sponge layer with the thickness of 2 cm-4 cm on the humic layer; and S5, uniformly spreading slow-release fertilizer into the fertilizer retention device, arranging an annular water spraying pipe on the isolation cover, and enabling the slow-release fertilizer in the fertilizer retention device to permeate into the circular fertilization area by utilizing the annular water spraying pipe. Fertilization is completed in the irrigation process, and the effect of slowly releasing nutrients for a long time is achieved.

The invention discloses a pruning method for increasing the yield of carya illinoinensis, and belongs to the technical field of walnut planting. According to the method, by means of bud picking, branch thinning, cutting back, retracting and the like, specific pruning methods are adopted for carya illinoinensis tree shapes in different periods, and the main purpose of pruning in the young tree period of the carya illinoinensis is to culture main branches and main side branches; the main principle of pruning in the early fruiting period of the carya illinoinensis is to continue to culture tree shapes, expand tree crowns, reasonably arrange backbone branches, culture fruiting branch groups and appropriately fruit; and pruning of the carya illinoinensis in the full bearing period is mainly based on culturing of more bearing branch groups. By adopting the method provided by the invention, the relationship among the fruiting branch groups, the main branches and the side branches can be reasonably adjusted, so that the fruiting branch groups are uniformly distributed, illumination is fully utilized, the effective conversion rate of photosynthesis is increased, the fruit quality is improved, the fruiting area is increased, and the fruiting quantity is increased.

The invention discloses a top grafting crown changing method for a big American hickory tree by adopting square bud grafting. The method comprises the following steps: S1, selecting a high-branch treewith the diameter greater than 2 cm at the height of 1.3 m of a trunk, determining a stubble height of the selected sapling according to a cultivation purpose, and cutting the trunk in the period from Frost Descent to Winter Solstice of the first year, wherein the trunk is cut in sunny weather and no rainy weather is continued subsequently; and smearing a disinfectant at a cut-off portion, and then smearing a protective agent. The method has the effects that the sapling can grow in the circumferential direction after crown changing, and one to two years later, robust and uniformly distributedlateral branches are rotated for square grafting, so that the following three effects can be achieved: firstly, the survival rate can be obviously improved, and the grafting survival rate can reach 95% or above; secondly, the growth direction of the crown after successful grafting can be controlled, and branch shaping and lighting are facilitated; and thirdly, the growth height of the sapling canbe controlled, and later management is facilitated.

The invention provides a portable cathay hickory husk stripping machine. The portable cathay hickory husk stripping machine comprises a fixedly supported machine frame, a husk stripping roller component used for performing husk stripping on cathay hickory and a circular fence component installed on the machine frame, a gasoline engine arranged on a side end of a support for driving the husk stripping roller component to rotate, and a hopper located at an upper end of the circular fence component used for placing cathay hickory. The portable cathay hickory husk stripping machine is capable of realizing immediate husk stripping on cathay hickory just beat off cathay hickory trees; and moreover, the portable cathay hickory husk stripping machine can be disassembled during transport and assembled on a mountain. In addition, feed quantity can be controlled by a feed quantity control device and a replaceable feed hopper; gap between the husk stripping roller component and the circular fencecomponent can be adjusted by an adjustable bearing so as to adapt to different walnut sizes; and husk stripping efficiency is improved by cooperation of a circular ring between the husk stripping roller component and the circular fence component. The portable cathay hickory husk stripping machine disclosed by the invention is compact in overall structure and rational in layout, and has the characteristic of being convenient to carry, good in adaptability, high in work efficiency and the like.

The invention discloses a living inoculation method for carya illinoensis fruits, and belongs to the technical field of bioengineering. The living inoculation method comprises the following steps of (1) selecting healthy fruits on a carya illinoensis tree, disinfecting, and puncturing the fruits for later use; (2) activating a pathogenic strain until hyphae are fully distributed on a whole culture medium, beating a fungus cake, enabling one side with the hyphae to be tightly attached to the punctured wounds of the fruits, covering the fungus cake by using a fungus cake covering device, and forcibly pressing to firmly adhere the fungus cake to the fruits; and (3) investigating the morbidity condition of inoculation points. The fungus cake covering device comprises a covering pipe body, a covering pipe cover and sterile absorbent cotton, the bottom of the covering pipe body is closed, the compacted sterile absorbent cotton in a water saturation state is arranged, and the opening and closing states of the covering pipe body are controlled through the covering pipe cover. By using the fungus cake covering device, the fungus cake can be moisturized, the result can be prevented from being interfered by dip dyeing of other external pathogenic bacteria, and the separation rate of separating pathogenic strains from diseased tissues is high.

The invention relates to the field of disease and pest control, in particular to a disease and pest control method for pecans. The method comprises the following steps: S1, adding a prepared insecticide into an insecticide box; s2, a plurality of agent boxes are fixed to the peripheral side of a trunk of the walnut tree through hook-and-loop fasteners and binding bands; s3, smearing insect sticking glue on the peripheral surface of the hook-and-loop fastener; s4, the insecticide seeps from the bottom of the insecticide box and drips to the periphery of the bottom of the trunk, a circle of insecticide area is formed at the bottom of the trunk, and insecticide liquid drops are thrown away when wind blows; and S5, observing the remaining amount of the insecticide in the insecticide box through a transparent window on the insecticide box, and supplementing the insecticide in time when the insecticide is insufficient. The pesticide box automatically drips pesticide to achieve continuous pest and disease control, a worker only needs to add the pesticide into the pesticide box and does not need to spray the pesticide by himself / herself, and physical strength is saved.

The invention discloses a pleurotus nebrodensis cultivation material which is characterized by taking hickory branch scraps, cattail shell scraps and fruit shell scraps as main raw materials and sugarcane slag, bran, corn flour, calcium superphosphate, gypsum powder and the like as auxiliary materials; the water content of the cultivation material is 63-65 percent. The invention also discloses a production method of the cultivation material. The cultivation material and the method have the advantages that 1, the hickory branch scraps, the cattail shell scraps and the fruit shell scraps are subjected to insolation, secondary fermentation or accumulation and aging, so that poisonous bacteriostatics is degraded, macromolecular substances such as xylogen and cellulose are decomposed into simple substances which are favorable for pleurotus nebrodensis hypha absorption, and the growth of pleurotus nebrodensis hypha is promoted; 2, the cultivation material is reasonable in proportion, bacterial materials are high in penetrability and high in water-retaining property, pleurotus nebrodensis grows well and is high in yield, and the biological efficiency is up to 110.3-120.5 percent; 3, a solution is provided for innocent treatment of taking hickory branches, cattail shells and fruit shells, and a new substrate is found for the cultivation of the pleurotus nebrodensis.

The invention relates to a planting method for interplanting rhizoma bletillae in a carya illinoensis fruit-bearing forest. The planting method comprises the following steps: a) establishment of a carya illinoensis forest: selecting the carya illinoensis fruit-bearing forest with the tree age of more than 7 years; the plant spacing is 25 cm, and the line spacing is 30 cm. According to the method, land resources can be fully utilized, economic benefits can be increased, the root system of the carya illinoensis tree can be conserved, and the economic yield of the carya illinoensis can be increased.

The invention relates to a photovoltaic maximum power point tracking method and an energy supply system. Based on a flying mouse optimization algorithm, the method comprises the following steps: taking values of different duty ratios as initial flying mouse positions Nfs; taking the instantaneous photovoltaic power output PPV(d) of the position of each flying mouse as the mass of a food source; defining a fitness function f of MPPT and calculating the fitness of the position of each flying mouse; sorting according to the fitness, and declaring that the position of the flying mouse with the maximum photovoltaic power output is on the hickory tree, the next optimal position of the flying mouse is on the acorn tree, and the other flying mice are on the normal trees; setting seasonal supervision conditions, and updating the positions of the flying mice; if the position changes of all the current flying mice are smaller than a threshold value or reach the set maximum iteration number, terminating optimization, and outputting the tracked position of the flying mouse located at the global maximum power point (GMPP) to serve as the working duty ratio of the current PWM converter.

The invention discloses a method for predicting pecan trunk rot. The method comprises the following steps: collecting pecan trunk bark, and dyeing by a histochemical positioning method to obtain slices; extracting RGB data of the slices; taking the RGB data as an input parameter of the pecan dry rot prediction model, and taking whether the pecan is infected or not as an output parameter; preventing and treating the infected diseased plants, and avoiding the large-scale incidence of the dry rot of the pecans. According to the prediction method disclosed by the invention, the occurrence of the dry rot of the hickory nut can be accurately predicted based on the histochemical localization of carbohydrates and proteins of the peridermis, the cortex and the phloem of the hickory nut in different directions and at different heights and the partial least square support vector machine model of the RGB color space.

The invention discloses a carya illinoensis cultivation management and shaping method. By root controllers buried underground, carya illinoensis root systems can be controlled conveniently without affecting operations of weeding and the like, growth of the root systems can be controlled to enable moderate vigor of carya illinoensis trees, and thus, easiness in flower bud differentiation can be achieved; fruiting can be realized on the second year of planting, and production can be realized on the third year and 2-5 years earlier than that in an existing method. In addition, by adoption of a close planting scheme, the carya illinoensis yield is increased, and benefits are increased for fruit growers. Further, by 'slender cylinder' shaping, dwarf culture can be realized, and convenience in management and picking is achieved.

The invention relates to the technical field of smart agriculture, and provides an unmanned aerial vehicle hyperspectral technology-based pecan tree species classification method, which comprises the following steps of: obtaining a hyperspectral image, and performing image cutting on the hyperspectral image to obtain a plurality of block images with specified sizes; analyzing a single hickory tree variety accurately, performing first feature extraction on the block image to obtain first feature information corresponding to the block image, and performing second feature extraction on the spatial feature to obtain second feature information corresponding to the spatial feature; feature information corresponding to the target is accurately collected through two times of feature extraction of different dimensions, the block images are classified based on the first feature information and the second feature information, classification information corresponding to the block images is obtained, and the classification information comprises pecan tree species information; based on the block images and the classification information, the pecan tree species classification image is obtained, an accurate pecan tree species classification result can be obtained, planting distribution of pecan tree species in the forest land is analyzed, and sustainable development of the forest land is promoted.

The invention relates to the technical field of fertilization equipment, and discloses a carya illinoensis planting and fertilizing machine which comprises a rack, a traction frame and a fixing frame which are arranged on the rack, a material storage assembly which is arranged on the rack and is used for storing fertilizer, and a fertilization adjusting mechanism and a ditching mechanism which are arranged on the fixing frame, a fixing support is fixedly installed on the fixing frame, and a driving shaft is rotatably installed on the fixing frame. According to the carya illinoensis planting and fertilizing machine, aiming at different requirements of carya illinoensis in different growth stages on a fertilizing range, when the carya illinoensis in a seedling stage is fertilized, a fertilizing opening at the bottom of a uniform shell can be completely opened, so that the fertilizing range is wider; when the adult carya cathayensis trees are fertilized, the fertilization range is accurately controlled by reducing the opening degree of the fertilization openings, and the fertilization range can be flexibly adjusted according to the actual growth stages and requirements of the carya cathayensis trees through the dynamic adjustment mechanism, so that the fertilizer is intensively put into a specified area.

The invention discloses a method for predicting the occurrence of hickory tree trunk rot based on a discriminant analysis method. The method comprises: selecting a hickory tree sample, collecting a soil sample, obtaining the pH of the soil in the dormant period, the content of alkaline nitrogen and the content of available potassium Ratio; record the incidence of dry rot in the next year; take the onset and non-onset as the discrimination type, the soil data as the training set, and the ratio of pH, alkaline nitrogen content and available potassium content as the model parameters to establish a discriminant analysis model; The predicted hickory tree soil pH and the ratio of alkaline nitrogen content to available potassium content are imported into the model to predict whether the hickory tree will have dry rot in the next year. The present invention relies on the discriminant analysis method, has found the index parameter that has greater correlation with hickory tree trunk rot, that is: the ratio of pH and alkaline hydrolysis nitrogen content and available potassium content, and utilizes the prediction model that these two parameters obtain , the prediction accuracy rate is over 80%.

The invention discloses a transplanting method for high-survival and fast-recovering hickory nuts in full fruit stage, including investigation of pollinated trees and main plant species; heavy pruning before transplanting to retain the main skeleton, cutting off all top branches and annual fruiting branches of the tree crown; transplanting Spray plant hormones after planting to promote the elongation of new branches and control reproductive growth. The method of the present invention makes the transplanting survival rate of the hickory tree body in the full fruit stage reach more than 95%, restores the yield within three years, slows down the seedling stage in the first year, controls reproductive growth, and focuses on restoring tree vigor; the recovery period in the second year has Yield; the third year yield is equal to the untransplanted shell hickory nut yield. It not only ensures the high survival rate of transplanting, but also restores production in time and reduces economic losses.

The invention discloses a wild walnut stock grafting method. The method comprises the following steps: S1, garden selection; S2, rootstock selection; S3, scion selection: selecting walnut trees which grow robustly, develop well and have no plant diseases, insect pests or parasitic branches in the initial fruit period and the full fruit period as seed trees for scion picking, and adopting branches without outer edges of tree crowns as scions; and S4, grafting: carrying out rootstock cutting, scion cutting, rootstock and scion jointing and binding. The method has the advantages that it can be guaranteed that calluses of walnut grafted bodies can be formed within 12 days, and the survival rate is 90% or above; by the adoption of the technical scheme, a large number of walnut rootstock grafted seedlings which are obtained every year and have vigorous vitality can be obtained, the survival rate of the wild walnut stock grafting is increased, the large-scale grafting survival rate can reach about 90%, and the preservation rate is 80% or above; the wild walnut tree bodies can bear fruits in advance, and meanwhile, batch and variety seedling culture of the wild walnut trees is also realized, so that the economic value of the wild walnuts is greatly improved.

The invention relates to a method for promoting early fruiting of pecans. The method comprises the following steps: carrying out lamination and germination acceleration on the pecan seeds; when the bud seedlings germinate to a plurality of new leaves, cutting the root of the bud seedling and dipping the bud seedling into a rooting solution, and then transplanting the bud seedling to a small root control device for rooting; when the nursery stocks grow to a proper roughness, carrying out square bud grafting; in the same year when the bud grafting is carried out, moving the variety seedlings outfrom the small root control device to prune the root after the fallen leaves are fallen, dipping the seedling into the rooting solution and transplanting the seedling to a large root control device for cultivation; according to different periods of bud grafting growth, sequentially spraying a growth promoting liquid for the first time, carrying out pinching for the first time, spraying a growth promoting liquid for the second time, carrying out pinching for the second time; in the same year, after leaves fall, trimming the root again, dipping the root into the rooting solution and transplanting the seedling to an orchard for field planting. According to the invention, the two kinds of root control devices are adopted for planting and then transplanting and root cutting technologies are adopted, so that the growth of the nursery stock can be controlled, and the lateral root quality of the nursery stock can be rapidly improved, the pecan trees in the united states can be rapidly formed,and the purpose that the fruits can be hung in 2-3 years in advance compared with conventional cultivation management can be achieved.

The invention discloses a method for constructing a hickory woodland ecological landscape based on a rock wool material. The method comprises: selecting a hickory woodland to be treated, digging a groove upstream of each hickory tree; filling the groove, A water-collecting and slow-release wall is formed, and the water-collecting and slow-release wall is sequentially formed from bottom to top to form a water filter layer, a rock wool layer and an improvement layer; the seeds of landscape plants are sown on the soil surface of the entire hickory forest to create an ecological landscape. The method of the present invention first utilizes the rock wool material and the soil water collection and slow-release wall reasonably arranged in the rainfall period to improve the ability of the hickory woodland to absorb and collect rainwater; The root system of hickory trees and the seeds of landscape plants can fully absorb water and promote their own expansion, which not only realizes the construction of ecological landscape, but also promotes the growth of hickory trees and landscape plants, and improves economic benefits.

The invention belongs to the technical field of fruit tree cultivation, and relates to a method for cultivating a carya illinoensis tree shape. The method aims at solving the technical problems that in the prior art, a trunk layering mode is adopted for cultivation of the carya illinoensis tree form, primary branch attachment points are low, trunk growth is affected, the number of female flowers is small, and yield growth is slow. The invention provides a method for culturing carya illinoensis trees. The method comprises the following steps: performing trunk determination treatment on fruit trees with the height of 2m or above; the method comprises the following steps: carrying out layered culture on fruit trees with fixed trunks, reserving 3-4 lateral buds in different directions at a trunk insertion position which is 1.9 m or above away from the ground, and culturing the lateral buds into first-level branches in a first layer; carrying out second-layer first-level branch cultivation on the basis that the first-level branches are 1.5 m or above higher than the first-level branches; the opening angle theta of the first-stage branch is larger than or equal to 45 degrees and smaller than or equal to 90 degrees; the number of second-level branches is controlled to be 11-20, and the number of third-level branches is controlled to be 21-25, so that the number of female flowers is increased, and the yield is increased.

A preservative composition is provided and includes polylysine, shagbark hickory bark extract, honeysuckle and citric extract(s).

The invention discloses a hickory branch tip culture method suitable for Southern regions. The method includes following steps: (1), thinning or retracting upright big branches and crossed branches: before hickory germination in winter, cutting or retracting the upright big branches and the crossed branches of hickory to enable a hickory tree to be integrally ventilated and light-pervious; (2), lopping for the first time: before hickory germination in winter, lopping one-year-old long branches by 1 / 3-1 / 2 of total length, and cutting off the tail ends of branch tips; (3), lopping for the secondtime: from April to May in spring, lopping medium-long branches of the current year by 1 / 3 of total length, and cutting off the tail ends of branch tips; (4), lopping for the third time: from May toJune, lopping medium-long branches of the current year by 1 / 3 of total length, and cutting off the tail ends of branch tips. The method is suitable for hickory branch tip culture in Southern regions,the number of branches, especially medium-short branches can be increased, relative balance between nutritional growth and reproductive growth of hickory is realized, flowering, fruit bearing and early fruiting of hickory are promoted, and yield and quality are improved.