620 results about "Growing season" patented technology

An computer implemented apparatus and method are disclosed for defining areas of a field in which a crop or other vegetation is grown based on their selective ability to grow such vegetation through a growing season, or some shorter preselected time period. The method includes making a number of temporally separated measurements through air borne imaging of a field, registering the data to the geography of the field and each other, normalizing the data including converting the data to a vegetative index indicative to the presence of vegetation in the field, comparing the data to identify clusters of like value, and classifying the clusters and images to learn how the different field areas responded in growing vegetation through the season. With this method, the field may be segregated into a number of like areas called crop response zones which exhibit similar vegetative growth characteristics as an aid to a grower in his decision making regarding how to maximize yield in his field.

A modeling framework for estimating crop growth and development over the course of an entire growing season generates a continuing profile of crop development from any point prior to and during a growing season until a crop maturity date is reached. The modeling framework applies extended range weather forecasts and remotely-sensed imagery to improve crop growth and development estimation, validation and projection. Output from the profile of crop development profile generates a combination of data for use in auxiliary farm management applications.

A method for analyzing types of water sources based on natural geographical feature, the method includes: collecting and processing remote sensing image data of target area, and obtaining maximum and minimum value of an annual vegetation index; subtracting the minimum value from the maximum value to obtain maximum variation range of annual vegetation index; extracting topography factors from a digital elevation model in target area; obtaining a natural vegetation area in target area; carrying out a normalization processing for the maximum variation range and the topography factors in this natural regions, and obtaining landform zones and situation of plant growth of different zones in the natural vegetation area by spatial cluster analysis in ArcGIS; obtaining a precipitation of landform zones in the growing season and the distances between the landform zones and the water sources, and obtaining the zones for the types of water sources based on natural geographical features.

A method preparing controlled release nitrogen in particulate fertilizers which exhibit single growing season availabilities to plants of about 80 percent or higher. The method utilizes relatively low urea and ammonia to formaldehyde mol ratios of about 1.7 urea to 0.1 ammonia to 1 formaldehyde to assure high conversions to controlled release nitrogen with low free ureas, and carefully controlled elevated temperatures, acid dehydration condensation catalyst concentrations and short dehydration reaction times of about 2-4 minutes to provide effective conversion of hydroxymethyl nitrogen compounds by dehydration condensation reaction to controlled release methylene nitrogen compounds. Quick neutralization of the dehydration catalyst in a turbulent mixing reactor minimizes the formation of undesirable methylene nitrogen polymers which are hot water insoluble and unavailable to plants in a single growing season.

The invention relates to a comprehensive improving method for coastal saline soil. The method includes the steps as follows: 1) underground desalting; 2) improvement of soil physical structure; 3) salt leaching by a great quantity of water; 4) application of microorganism bacterial manure for soil improvement; and 5) plant arrangement and transplantation. The engineering patent technology of desalting using covered conduits, the technical measures for improving the soil physical structure and the improvement of microbial manure are firstly integrated by the comprehensive improving method so as to conduct sequential and comprehensive work. The comprehensive improving method is remarkable in the effect of soil improvement and has the advantages of effectively reducing the salt content in high saline-alkali soil in short time (within one growing season), preventing secondary alkalization, increasing soil fertility and establishing microorganism communities; beneficial microorganisms relieve the threat and the harm of salt and alkali to plants in the original saline soil, accelerate soil ripening and promote the greening progress of the original soil; and the survival rate of plants in the same year is up to above 95% and the water resource is saved.

The invention relates to a method for preparing seaweed biological long-acting fertilizer. Seaweed dregs from which seaweed gum, carrageenan and agar are extracted are taken as an active carrier so as to turn waste into treasure, and a plurality of seaweed bio-active substances contained in seaweed extract and chelated-type nutritive elements or nutrients easily absorbed by plants are all wrapped up to form a slow-release system so as to ensure slow long-term release of fertilizer efficiency and provide plants with demand for nutrition throughout a growing season. The method extracts nutrient components in seaweed adopting a low-temperature extraction process, thereby ensuring that active components of the seaweed are not destroyed and increase the content of the effective nutrient components of products. The method adopts a special biochemical process, adds a multifunctional fermentation strain which has synergy and is formed mainly by compounding fungi, yeast, actinomycetes and bacterial beneficial microorganisms which are not mutually antagonistic and cooperate during fermentation, and effectively extracts biological nutrient components of the seaweed through a large amount of powerful biochemical reaction during reproduction. The seaweed biological long-acting fertilizer belongs to non-toxic pollution-free purely-natural seaweed bio-organic fertilizer.

The invention provides a seed maize field identification method and system based on multi-source and multi-temporal high resolution remote sensing data. The method comprises the steps of 1) getting the image of No. 1 multi-temporal high resolution Wild Field View (WFV) for the monitored maize field in maize growth season and the No. 2 high resolution panchromatic band image for key growth period; pre-processing the image of No. 1 multi-temporal high resolution Wild Field View (WFV) and getting xxx of No. 1 multi-temporal high resolution Wild Field View normalized difference vegetation index WFV NDVI Time Series Dataset and well-aligned High-Score 2# Panchromatic Band; S3: Application of Object-oriented Classification Method for Processing of WFV NDVI timing dataset of High-Score 1# in Maize Growing Season, to identify the cornfield block in the said monitoring area according to the phenological differences between crops; S4: to identify the seed maize field in the monitoring area based on the block acquired by S3 and according to the difference in spectrum and texture information between the seed maize field and the growing maize field on High-Score 2 panchromatic wave band. The present invention provides an accurate, economic and objective method for remote sensing and monitoring of seed maize breeding.

The invention relates to a method for transplanting ancient ginkgoes and belongs to the technical field of plant transplanting technologies. The method for transplanting ancient ginkgoes includes the steps of firstly, preparing before transplanting; secondly, performing balance snagging to branches of ancient ginkgoes; thirdly, performing root pruning and ball shrinking; fourthly, packing and transporting root balls; and fifthly, maintaining and managing after transplanting. Root pruning and ball shrinking are performed in the method, so that growth of new mass absorbing roots is promoted. Emergence of new mass branches and leaves is promoted by balance snagging. By soil ball bundling, lifting by cranes, transporting by plate trailers, unloading and transplanting, no cracking of tree trunks occurs, and the soil balls are firm without looseness. By late maintenance and management, the transplanted ancient ginkgoes grow well in leafy profusion and have green leaves in growth seasons, and survival and healthy thriving are achieved.

The invention relates to a planting method of famous and precious Chinese herb medicine dendrobium officinale, and the method is characterized in that a cultivation bed of a plantation trough with an undulated bottom is established under a certain facility environment, multiple mixed organic matrixes mainly comprising pine bark are paved, a nondestructive planting technology for stretching tissue culture seedling roots is adopted, and scientific and reasonable dendrobium officinale planting method adopting comprehensive cultivation measures such as a photo and temperature control technology, a fertilizer control technology, an insect and harmful organism nuisanceless control technology and a sustainable harvesting technology is adopted in different growth seasons and for different plants according to the biological characteristics of the dendrobium officinale; and due to the adoption of the method, the ventilation, moisture evaporation and moistening functions of a plant root environment can be enhanced, and harmful substances influencing the growth of the plant can be eliminated in time, so that the plant can grow strong, active components are highly concentrated, the resistance is enhanced, a purpose of high yield and excellent quality can be realized, the high yield and stable yield of the dendrobium officinale can be guaranteed, the product quality is excellent, sustainability for harvesting the dendrobium officinale for multiple years can be realized, and super high yield of fresh products about 600kg per Mu every year can be realized after the method is put into production.

A vegetable and plant growing cage and method of use and manufacture comprising a tapered, flexible, and lightweight helical coil which is capable of attaching to a conventional stake and which allows a gardener, farmer, or grower to alleviate the need for tying a plant during the growing season. The device allows a plant to grow within the coil and further allows the coil to support the branches, stems, fruits, and flowers of the plant. The apparatus and method of use allows for the user to non-destructively collapse or compress the helical coil into a substantially flat helicoid for storage during the non-growing season.

The invention relates to 'a bark grafting method of apocarya' and belongs to the field of fruit trees and forest tree breeding. The method includes cutting a stock or a lignification branch of the apocarya in vigorous growth to the xylem, conducing inclining cutting on the portion above a cut to form a 45-degree cut, cutting downwards on an edge bark layer of the cut through a stem grafting knife for 3cm with cutting length as 3cm and cutting width determined by scion thickness and conducting scion branch processing and grafting. By means of the method, summer grafting survival rate of scions dormant in winter is greatly improved, the problem of scion grafting survival of ligneous plants like the apocarya which is introduced from the southern hemisphere in summer is effectively removed, and simultaneously grafting period of the apocarya can be prolonged.

The invention discloses an underplanting method of traditional Chinese medicinal material radix tetrastigme. By the adoption of a hillside forest and pot culture intercropping planting mode, the method for carrying out underplanting of the traditional Chinese medicinal material radix tetrastigme on a large scale in the natural environment is established through the steps of forest land selection, soil selection, seedling selection, seedling culture, forest management, pest and disease integrated control and harvest. According to the method, abundant forest land resources are utilized to provide fields for forest and medicinal material intercropping, and the purposes of reducing planting cost and obtaining high-quality and high-yield radix tetrastigme tuberous roots are achieved by making full use of growing seasons based on the ecology-imitating planting principle; besides, the planting method is simple and low in cost.

Plants are optimally grown under artificial narrowband Photosynthetically Active Radiation (“PAR”) of multiple colors, and color palettes, applied in but partially time-overlapping cycles. As well as a long, growing season, cycle, the colored lights are cyclically applied on a short, diurnal, cycle that often roughly simulates a peak-season sunny day at the earth latitude native to the plant. Bluer lights are applied commencing before redder lights, and are likewise terminated before the redder lights. Infrared light in particular, is preferably first applied at a time corresponding to early afternoon, and is temporally extended past a time corresponding to sunset. The colored lights and light palettes preferably rise to, and fall from, different peak intensities over periods from 10 minutes to 2 hours, and relative peak intensities of even such different colors as are used at all vary up to times two (×2) in response to differing PAR requirements of different plants. Computer-controlled colored LED lights realize all.

The invention discloses a method of quickly repairing a cadmium polluted cultivated land by crop rotation of a cadmium super-enriching plant and an energy plant. The method comprises the following step: planting the cadmium super-enriching plant and the energy plant in the cadmium polluted cultivated land in the natural growth periods thereof for conventional cultivation to achieve the purpose ofrepairing the cadmium polluted cultivated land by means of adsorbing and enriching abilities of the cadmium super-enriching plant and the energy plant, wherein the cadmium super-enriching plant is sedum plumbizincicola and the energy plant is sorghum or oilseed rape. The invention provides a planting mode which is not limited by growth seasons. Based on one year as the repair period, the soil repair efficiency of the polluted cultivated land is increased by means of a relatively long growth period in multi-cropping plantation, and the method is short in repair period, high in operability and low in cost, and repairs the land more thoroughly.

The invention relates to a minimum-tillage and no-tillage mulching cultivation method of a lemon orchard. The minimum-tillage and no-tillage mulching cultivation method comprises the following steps of: planting lemons in the flat land lemon orchard according to the requirement of enabling the distance between plants * the distance between rows to be 2.0-2.5m * 3.5-4.0m; planting pasture among lemon rows, planting 1 row of the lemons on each platform ladder surface of the sloping land lemon orchard and planting the pasture on platform sloping surfaces; timely cutting the pasture in growing seasons for mulching around tree trunks of the lemons, applying a basal fertilizer for the lemons once annularly, and performing drop irrigation fertilization or fertilization by a fertilization gun in other periods except the application of the basal fertilizer. According to the minimum-tillage and no-tillage mulching cultivation method, the frequency of tillage in the lemon orchard can be reduced, the using frequency and the quantity of the fertilizer and pesticide can be reduced, the production of the 4-year-old lemon orchard can be increased by above 120kg / mu, the yield of fresh forage of the 1-5-year-old lemon orchard can be up to 3850-2930 kg / mu, organic matters, available nitrogen, available phosphorus and available potassium in soil are increased, and the orchard can be developed in a sustainable and healthy manner.

The invention discloses a method for interplanting of mulberry-branch black fungus on a mulberry tree. The method comprises the steps of: selection of the interplanting time, collection and processing of mulberry branches, production of a formula and a bag of materials for culture of the mulberry-branch black fungus, promotion of growth of the black fungus, setting of the black fungus, and cultivation in the sunlight with or without intermediate cuttings of the mulberry tree. The method is characterized in that: a grafted bag is interplanted in a mulberry field, and a place for growth of the mulberry-branch black fungus is provided based on natural shading conditions of the mulberry field; and the culture materials comprises mulberry chippings with the mass percentage of 40-80 percent and other auxiliary materials. In the mulberry growing season, grafting is performed for the bag and mycelia are cultivated, semi-daylight cultivation is performed among and under mulberry trees according to the interplanting method, and full-daylight cultivation is performed after intermediate cuttings of the mulberry trees. The mulberry-branch black fungus is interplanted in the mulberry field, no land resources or special facilities are needed, the production cost can be reduced, economic benefits can be improved, and residues of the black fungus can be directly applied in the field to promote the growth of mulberry trees and fertilize the land.

The invention discloses a three-dimensional cultivation method for cortex phellodendri and rhizoma paridis interplanting. The three-dimensional cultivation method comprises the steps of cortex phellodendri planting, rhizoma paridis planting, field management, fertilization management, irrigation management and pest control. Interplanting is carried out in winter and spring, and a low-mountain yellow earth thick-layer three-dimensional land type is selected; cave-shaped soil preparation is adopted for cortex phellodendri, the height of each transplanted seedling is larger than or equal to 50 cm, and the ground diameter is larger than or equal to 1 cm; after ten to fourteen months of cortex phellodendri transplantation, rhizoma paridis transplantation is carried out, bedding is carried out between cortex phellodendri rows, tubers, with buds, of rhizoma paridis are transplanted to beds; a survey of the survival rate of the cortex phellodendri is carried out on the cortex phellodendri after two months of cortex phellodendri planting, a survey of the survival rate of the rhizoma paridis is carried out on the rhizoma paridis after six months of rhizoma paridis planting, and seedling supplement, weeding, soil loosening and pest control are carried out in time; when the overshadowing rate of the cortex phellodendri is lager than 65%, pruning or crossing or intermediate cutting is carried out to adjust the overshadowing rate; two times of top dressing are carried out in a growing season and in winter respectively, watering is carried out in time after planting is accomplished, watering is carried out in time in a dry season, and drainage needs to be smooth in a rainy season. According to the three-dimensional cultivation method for cortex phellodendri and rhizoma paridis interplanting, combined and targeted optimized cultivation of the cortex phellodendri and the rhizoma paridis is achieved, the yield of the cortex phellodendri and the yield of the rhizoma paridis are increased, quality of the cortex phellodendri and quality of the rhizoma paridis are improved, the economic benefit is remarkable, and the popularization and application value is high.

The invention discloses a high spatial resolution remote sensing image crown outline delineation system and a method and aims at delineating the crown outline of a high spatial resolution remote sensing image simply and efficiently. The method includes the following steps: acquiring a high spatial resolution remote sensing image with forest stand being in growing season and extracting a single forest stand image; according to the single forest stand image, using gradient as division function and adopting Laplace-Gauss operator to conduct boundary detection on a grayscale image and obtain an intermediate result image; subsequently, adopting morphology technology to mark a foreground treetop object in a front intermediate result image to obtain a treetop tag; calculating a background tag inthe intermediate result image and generating a crown boundary line surrounding each treetop tag; and then conducting crown delineation on the crown boundary line under the guide of treetop to obtain acrown outline distribution chart. Compared with the prior art, the system and the method can be applied to the fields such as forestry investigation, forest resource monitoring, forestry remote sensing and the like.

The invention relates to the nitrogen manure, in particular to the slow-release and long-effect urea fertilizer coating a layer of biochemical inhibitor on the urea surface and the preparation process. The fertilizer components are the urea, the biochemical inhibitor, the bond and the organic solvent. The process is that: the levitated solution mixed with the biochemical inhibitor, the bond and the organic solvent is sprayed and coated on the surface of the molding urea granule under the fluidized state through a fluidized bed to gain the slow-release urea fertilizer. The fertilizer of the invention makes full play of the functions and effects of two biochemical inhibitors, makes the fertilizer effect period prolonged obviously and realizes that once basal nitrogen fertilizer application can meet the requirement of whole growing seasons on the nitrogen. The agricultural production saves labor and time with low production cost and friendly environment. For the secondary processing of the urea, the preparation process of the invention has simple operation and easy realization and can carry out industrial production on a large scale.

The invention discloses a method for the preparation and use of a slow-release iron-based biochar soil heavy metal passivator. The slow-release iron-based biochar soil heavy metal passivator of the present invention is prepared by an one-step method, wherein iron-based biochar, kaolin and a biological starch are mixed into a core material in a specific ratio; an acidic silica sol and a chitosan solution are prepared, under the effects of an alkaline catalyst and an emulsifier, as a chitosan and silica-sol composite material as a coating, and the iron-based biochar is coated with the alkaline coating material, with the core material and the coating material being controlled at a certain volume ratio. The passivator has a wide raw material source, a simple and convenient preparation process, easy industrialized production, and can passivate the heavy metal arsenic and cadmium efficiently and inhibit the absorption and accumulation of arsenic and cadmium. The passivator prepared by the present invention can last for 4 growing seasons and has a higher passivation efficiency and a longer action time than common iron-based biochar passivators. The passivator can be widely used in the control of arsenic and cadmium pollution farmland.

The invention discloses a crop planting mode recognition method which comprises the following steps: inputting remote-sensing vegetation index time series data, and determining the vegetation growth threshold; optimizing parameters by selecting training samples to obtain the shortest length of the growing season of the crops, the longest length of the growing season of the crops and the smallest growth magnitude of the crops; extracting the vegetation growth information which is the number of the growing season of the crops in one year, the length of each growing season of the crops and the growth magnitude of the crops, and eliminating the non-crops; calculating the number of the growing season of the crops to obtain the multiple cropping index in one year; and finally determining the crop planting mode comprehensively according to the multiple cropping indexes of the crops in the last year, current year and next year. Due to the adoption of the technical scheme, the crop planting mode can be recognized directly according to the remote-sensing vegetation index time series data, and the problems the experience of calculating parameters is deficient, and the peak numbers do not correspond to the crop planting modes are solved. The crop planting mode recognition method has the advantages of strong noise resisting capability, less required parameters and strong versatility.

The invention discloses a method for improving the repairing efficiency of heavy metal polluted plants. The method comprises the following steps: growing plants with an enriching or super-enriching ability to heavy metal on heavy metal polluted soil or water; when the main stems of the plants grow leaves, spraying a heavy metal pollution repairing improver on the leaves; removing heavy metal pollutions by harvesting dead leaves of the plants in plant growing season. The method has the advantages that not only can the repairing efficiency of the heavy metal polluted plants be improved, but also heavy metal poisoning the plants can be reduced or removed, and the application range of heavy metal polluted plant repairing is extended.

The invention discloses a method for cultivating soap nut trees. The site conditions are as follows: a farmland is adjacent to the land and has better water draining, and the underground water level is less than or equal to 80 centimeters; the soil condition is that the soil is yellow brown soil. The cultivation technology comprises the following steps of: improving soil and applying fertilizer, ditching and preparing soil in autumn and winter of the year before planting nursery-grown plants, and returning mellow soil back to a pit to forest in spring of the next year after frozenly cutting in winter. The initial stand density is as follows: the trees are planted in the last ten days of February and the first ten days of March in each year and the row distance of the trees is 1.5*3 cm; after one year, a seedling is planted between the trees and the row distance of the trees is adjusted to 3*3 m. A process of pruning comprises the following steps of: continuously reforming and pruning the trees in a growing season and keeping the apical growth dominance; adjusting trunks to the height of 1.5-1.8 m through pruning in the following year and culturing skeleton branches at the same time. The insect pest is as follows: long-horned beetle borer pests are mainly prevented and treated. Through utilizing the method provided by the invention, the year increment of the soap nut trees reaches 80-120 cm, the year increment of the diameter reaches 2.2-2.8 cm, and good greening seedlings with the seedling diameter of 8-12 cm can be obtained by utilizing the nursery-grown plants of 5-6 years old.

The invention discloses an interplant high-yielding cultivation method for potato and corn, comprising the steps of preparing seeds and preparing earth, sowing, topdressing, preventing and treating diseases and the like. In the cultivation method disclosed by the invention, by combining the self-growth characteristics of the potato and corn, planting conditions are scientifically and reliably controlled, the effective utilization of soil is improved and the defect of the potato and corn in a single cultivation mode is overcome, so that the yields of the potato and corn are effectively increased, simultaneously the influence of adverse conditions such as a great amount of rainfall in growth seasons, a great amount of fog and dew, large humidity in a filed, less sunshine duration and the like is overcome, the resistivity of potato plants on late blight is improved, and virus infection opportunity is reduced. The acre yield of potato is not less than 3100kg, the acre yield of corn is not less than 450kg, and the yields of the potato and corn are stable, thus the cultivation method is applicable to popularize and implement in southwestern mountainous areas.

The invention provides a compound fertilizer for radix angelicae and radix bupleuri. The compound fertilizer is prepared by comprising the following steps of: selecting multiple organic fertilizers of plant ash, pig manure, saw dust, straw, corn flour, soybean cakes and the like; fermenting so as to kill pathogenic bacteria and promote partial organisms to decompose to improve the fertilizer effects; combining and utilizing various substances of sea algae extracts and formulas so as to lower the premature seeding rate of radix angelicae and improve the content of imperatorin in radix angelicae and saponin a, d in radix bupleuri; regulating the carbon nitrogen ratio by a certain amount of nitrogenous fertilizers, phosphatic fertilizers and potash fertilizers, thereby obtaining a special nutritious compound fertilizer for culturing radix angelicae and radix bupleuri three-dimensionally. The compound fertilizer designed by the invention can meet the differences of different nutrition requirements and different growth seasons of radix angelicae and radix bupleuri purposefully, improves the medicinal material quality, and has obvious economical benefit. The compound fertilizer for radix angelicae and radix bupleuri provided by the invention is the special nutritious compound fertilizer for culturing radix angelicae and radix bupleuri three-dimensionally, and can be used for lowering the premature seeding rate of radix angelicae, improving the content of imperatorin in radix angelicae and saponin a, d in radix bupleuri, and improving the medicinal material quality of radix angelicae and radix bupleuri.

The invention relates to a method for vegetation restoration in ecological fragile zones of coastal heavy saline-alkali soil. The method includes the steps of (1) land leveling and ploughing and loosening: ploughing land by 30 cm, breaking up clods, ridging according to plots, and leveling land to enable height difference not to exceed 5cm; (2) selection and application of soil bacterial manure: adopting one of gold probiotics bacterial manure or a Frisol A+F microbial agent; and (3) vegetable planting or growing. The method has the advantages that a saline-alkali soil improvement effect is remarkable, salinity in high saline-alkali soil is reduced effectively within a short time (within a growing season), secondary alkalization is prevented, soil fertility is improved, microfloras are established, soil ripening is quickened, progress of vegetation restoration of the heavy saline-alkali soil is accelerated, vegetable survival rate in the current year is ensured to be above 95%, cost is lowered, and the method is a biological saline-alkali soil improvement measure with water resources saved.

An application system for applying nitrogen to the soil. The system is a tool bar provided with a plurality of long arms, coupled to disks. Coupled behind the disks is a nitrogen dispensing system, coupled to a large fluid tank on a vehicle. By utilizing a high clearance vehicle, the system is utilized to apply nitrogen supplements to the soil throughout the growing season.

The invention provides a fast frame-climbing method of shed frame pear tree boughs. The frame-climbing method is carried out on a shed frame of a three-line one plane or two-line one plane mode, and frame climbing is carried out by three steps of strengthening, pulling in an inclined mode, and pulling in a level mode. The first step of strengthening is that young shoots are guided onto an elevation guide line in a vertical mode during a growing season so that the young shoots can keep a vertical growing state. The second step of pulling in an inclined mode is that base parts of the shoots growing vertically are pulled in a level mode and fixed behind the shed frame face during autumn of the same year, and then are guided onto the elevation guide line according to a 45-degree angle, namely, the base parts of the shoots are firstly pulled in a level mode and fixed and then pulled in an inclined mode. The third step of pulling in a level mode is that the shoots are pulled in a level mode and fixed on the shed frame face during autumn of the next year. The fast frame-climbing method has the advantages of being fast in frame-climbing, few in water shoots, small in trimming quantity, large in frame face fruit area, high in output and the like.

The present invention discloses an air layering seedling cultivating method. The air layering seedling cultivating method comprises the following steps of: (1) branch processing; (2) branch wrapping; (3) management after wrapping; and (4) rooting and transplanting. Compared with the prior art, according to the air layering seedling cultivating method, land is not occupied before rooting, propagation time is long, the whole growing season can be used for propagation, materials are easy to get, the method is simple, rooting rate and transplanting survival rate are high, and the method is especially suitable for trees which are not easy to fruit and root after cutting, have no stem tillers or root tillers for division seedling cultivation, cannot be cultivated by a grafting method, and have high crowns.