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23 results about "Girdling" patented technology

Girdling, also called ring-barking is the complete removal of a strip of bark (consisting of cork cambium or "phellogen", phloem, cambium and sometimes going into the xylem) from around the entire circumference of either a branch or trunk of a woody plant. Girdling results in the death of the area above the girdle over time. A branch completely girdled will fail and when the main trunk of a tree is girdled, the entire tree will die, if it cannot regrow from above to bridge the wound. Animals such as rodents, will girdle trees by feeding on outer bark often during winter under snow. Human practices of girdling including forestry, horticulture, and vandalism. Foresters use the practice of girdling to thin forests. Girdling can also be caused by herbivorous mammals feeding on plant bark and by birds and insects, both of which can effectively girdle a tree by boring rows of adjacent holes.

Full-automatic jujube tree girdling machine

The invention belongs to the technical field of girdling machines, and provides a full-automatic jujube tree girdling machine which comprises a crawler machine, a control assembly is installed on the front end face of the crawler machine, crawler wheels are installed on the bottom face of the crawler machine, a rotating disc is installed on the top of a crawler machine body in a driving mode, and a first four-axis mechanical arm and a second four-axis mechanical arm are installed on the upper surface of the rotating disc. The surrounding type fixing assembly is installed at the working end of the first four-axis mechanical arm, and the surrounding type fixing assembly comprises a connecting disc, a first arc-shaped arm, a second arc-shaped arm, a pressure sensor, a hinge rod, a second driving motor, a driving fluted disc and a driven fluted disc; the ring cutting assembly comprises a first driving motor and a cutting grinding wheel; according to the jujube tree girdling device, the crawler machine, the surrounding type fixing assembly and the girdling assembly are arranged, the crawler machine accurately reaches the peripheral side of a jujube tree, smooth and complete girdling of a notch is completed at a time, secondary bark repairing is not needed, and full-process automatic operation is achieved.
Owner:SHANDONG HUAYU UNIV OF TECH

Cultivation method for controlling tips and promoting flower bud differentiation of syzygium samarangense

The invention discloses a cultivation method for controlling tips and promoting flower bud differentiation of syzygium samarangense, and belongs to the technical field of tip control cultivation of syzygium samarangense. The method comprises the following steps: slightly shearing 70-80 days before flower forcing in the wax apple production period, applying a phosphorus-potassium-silicon mixed fertilizer in holes on the ground, and applying the fertilizer once every 15 days, totally twice; then a mixed aqueous solution of potassium phosphite and paclobutrazol is sprayed to leaf surfaces and drips water, spraying is conducted once every 15 days, and spraying is conducted 2-3 times in total; after spraying is conducted for 5-7 days, closed girdling is conducted, after 40-45 days, a mixed aqueous solution of auxin and a plant nutrition regulator is used for spraying, spraying is conducted once every 15 days, and spraying is conducted 1-2 times in total. The silicon fertilizer is mixed and added in the fertilizer and water management period to assist in increasing the absorption and utilization rate of the phosphorus-potassium fertilizer; besides, through the synergistic effect of tip control, trunk girdling and a mixed aqueous solution of auxin and a plant nutrition regulator, syzygium samarangense plants are stable, flower bud differentiation is promoted, meanwhile, the method has the characteristics of disease resistance, disease prevention, high flower forcing and flowering rate and large inflorescence amount, and the important effects of annual flowering and fruiting and promotion of syzygium samarangense industry synergy can be achieved; the method has the advantages of simple operation process, high efficiency, stability, few use times and labor cost saving.
Owner:YUNNAN HONGHE INST OF TROPICAL AGRI SCI

Grapefruit tree girdling and peeling device

The utility model relates to the field of fruit tree planting and maintaining tools, in particular to a grapefruit tree girdling and peeling device which comprises a handle, a girdling knife and a lacing belt, the handle is divided into a handheld portion and an operating portion, the section of the operating portion is in a C shape, and the fastening end of the lacing belt is hinged to one end of the operating portion. The movable end of the lacing belt is inserted into the hole locking end of the operation part and can freely enter and exit from the hole locking end so as to enlarge or reduce the encircling diameter of the lacing belt, the operation part is further provided with a pawl which extends into the hole locking end and is used for clamping the lacing belt, and the lacing belt is made of a bendable composite material. Ratchet teeth matched with the pawls are distributed on the outer side wall, away from the trunk, of the lacing belt, and the girdling knife is detachably installed on the lacing belt. The grapefruit tree girdling cutter effectively solves the problems existing in the prior art, shows many advantages in the aspects of diameter adjustment, stability, girdling cutter design and the like, can better meet the requirements of grapefruit tree refined cultivation management, and has important practical value.
Owner:ZHONGJIANG COUNTY YONGZHENG POMELO IND PROFESSIONAL COOP

Method for high-pressure propagation and rapid seedling culture of acanthopanax giraldii harms

PendingCN121713775ABiocidePlant growth regulatorsMicroorganismEleutherococcus gracilistylus
The invention provides a method for high-pressure propagation and rapid seedling culture of acanthopanax giraldii harms, and belongs to the technical field of rapid propagation of acanthopanax giraldii harms. The method comprises the following steps: 1-3 days before high-pressure propagation in April to August, shading seed trees of acanthopanax giraldii harms; the method comprises the following steps: selecting branches which grow for more than or equal to 1 year on an acanthopanax giraldii harms seed tree, girdling, and scraping away phloem of the girdled part; carbendazim, a rooting solution 1 and a rooting substrate are mixed and filled into a breeding box, the breeding box is pressed at the branch girdling position, a girdling notch is kept in the dead center of the breeding box, and the breeding box is fixed; the relative humidity of the rooting substrate in the breeding box is kept to be 70%-80%, and a rooting promoting nutrient solution is supplemented regularly. According to the method, the problems of microbial contamination and browning in traditional tissue culture are solved, only 4-6 months are needed, the seedling culture time of the acanthopanax giraldii harms is greatly shortened, and the reproduction rate and the branch utilization rate are remarkably increased; the rooting rate and the survival rate both reach 90% or above, and the material cost and the time cost are saved.
Owner:XIAOJIN CHUANGYUAN AGRICULTURAL DEVELOPMENT CO LTD +1

Greenhouse container seedling cultivation method for improving ornamental value of North American malus spectabilis

The invention relates to the technical field of malus spectabilis seedling cultivation, in particular to a greenhouse container seedling cultivation method for improving the ornamental value of North American malus spectabilis. Comprising the following steps: selecting an air-permeable root control container, and preparing a special culture medium; the robust seedlings are planted in a root control container, and the container is placed in a shading environment for seedling recovery; controlling day and night temperature, illumination and water nutrients; a water and fertilizer integrated system is adopted for irrigation and fertilization; physical methods of pinching, branch pulling and girdling are applied, and paclobutrazol is sprayed on leaf surfaces; through precise regulation and control day and night temperature difference and photoperiod management, coupling application of water and fertilizer integration and synergistic drought stress and organic combination of physical shaping and chemical regulation and control, a synergistic interaction effect is generated among factors such as temperature, illumination, moisture and nutrients; therefore, the beneficial effects of inhibiting spindling, promoting branching, efficiently inducing flower bud differentiation and shaping compact plant types are synchronously achieved on the whole, and the ornamental quality and growth consistency of the North American malus spectabilis container seedlings are improved.
Owner:JIANGXI ACAD OF FORESTRY

Citrus tree fertilization and girdling integrated device and use method

The invention relates to a citrus tree fertilization and girdling integrated device and a use method, and relates to the technical field of citrus tree planting and maintenance. Comprising a moving frame, a plurality of universal wheels are arranged at the bottom of the moving frame, a storage tank is arranged on the moving frame, a conveying pipe communicated with the interior of the storage tank is installed below the storage tank, the upper end of the conveying pipe is of a telescopic structure, adjacent conveying pipes are connected in a threaded fit mode, and the lower end of the conveying pipe is of a conical structure. An auger blade is arranged outside the end, away from the storage tank, of the conveying pipe. An annular cutting unit is further arranged on one side of the movable frame. The citrus tree girdling device can solve the following problems existing in the citrus tree planting and maintaining process in the prior art: fine adjustment of the girdling width is achieved by controlling the distance between the two girdling blades, and the growth requirements of different citrus trees are met; then, the fertilization depth is controlled by controlling the descending depth of auger blades; and girdling work can be synchronously carried out during fertilization, so that manpower and time cost are saved, and damage to fruit tree root systems is reduced.
Owner:YUNNAN ACAD OF AGRI SCI +1

Girdling knife for eucalyptus

The girdling knife comprises girdling plates, the number of the girdling plates is two, the outer ends of one group of girdling plates are symmetrically and fixedly connected with supporting rods, the other group of girdling plates are connected with the supporting rods in a sliding mode, girdling assemblies are arranged in the girdling plates, and the girdling assemblies are connected with the supporting rods in a sliding mode. The girdling assembly comprises clamping grooves symmetrically formed in the outer end of the girdling plate, a connecting plate is clamped in the clamping grooves, the outer end of the connecting plate is fixedly connected with a girdling cutter head, and the bottom end of the connecting plate is fixedly connected with a connecting plate. According to the girdling knife for the eucalyptus, two groups of studs move oppositely by rotating a screw rod, so that two groups of rotating rods are close to each other, at the moment, a connecting plate drives a girdling knife head at the outer end of the connecting plate to move, the cutting width of the eucalyptus is controlled by adjusting the distance between the two groups of girdling knife heads, and girdling of the eucalyptus can be completed at a time while operation is simple and convenient; and repeated girdling operation is avoided.
Owner:GUANGXI STATE-OWNED DONGMEN TREE FARM

Electric girdling equipment for winter jujube tree branches

The utility model discloses an electric girdling device for winter jujube tree branches, which comprises a direct current brushless motor, a rotating output shaft of the direct current brushless motor is connected with one end of a planetary reducer, and the other end of the planetary reducer is connected with a driving bevel gear. The driving bevel gear is in transmission connection with a girdling transmission gear arranged on the periphery of the turnover girdling tool bit through a gear set. The phloem of a winter jujube tree branch is surrounded and stripped through the girdling tool bit driven by the motor, the clamping mechanism can change along with the diameter of the winter jujube tree branch, operation is easy and convenient, the labor intensity of orchard workers is greatly relieved, and working efficiency is improved.
Owner:SHANDONG AGRICULTURAL UNIVERSITY

Method for inducing litchi girdling callus and peripheral bud differentiation in field

The invention discloses a method for inducing litchi girdling callus and peripheral bud differentiation in a field, and relates to the technical field of plant propagation, the method comprises the following steps: cutting off the top of a trunk branch of a litchi growing vertically, and carrying out spiral girdling below the section of the top until the girdling depth reaches a wood layer; soaking absorbent cotton in a bud differentiation inducer to obtain an induction matrix; after the top section and the girdling opening of the litchi branch are covered with the induction matrix, bud differentiation treatment is conducted on the litchi branch; after bud differentiation treatment is completed, the litchi branches are subjected to moisture preservation and light shielding treatment, and adventitious buds are obtained. According to the method, wound induction is directly carried out on the litchi plants in the field, the browning problem in the in-vitro culture process is avoided by utilizing a plant self-repairing mechanism and combining with local medicament treatment, adventitious bud differentiation around girdling openings is promoted, a stable material source is provided for field screening of the polyploidy plants, the equipment and labor cost is reduced, and the method is suitable for large-scale popularization and application. Meanwhile, the survival rate of genetic variants is improved.
Owner:SOUTH SUBTROPICAL CROP RES INST CHINA ACAD OF TROPICAL AGRI SCI

Woody flower high-position grafting and synergistic growth regulation and control method

The invention belongs to the technical field of grafting methods, and provides a woody flower top grafting and synergistic growth regulation method which comprises the following steps: 30-60 days before grafting, performing graded fertilization and synchronously completing girdling according to the ground diameter of a stock trunk; from mid-to-late February to early-to-mid April, grafting is conducted at the position 5-10 cm above the girdling belt, and used scions are soaked in scion activity enhancing liquid for 30-60 s in advance; after grafting, a three-layer composite moisturizing cover is immediately arranged in a sleeving mode, the internal temperature is controlled to be 24-26 DEG C, and the humidity is controlled to be 85-90% RH; after 20-45 days, the three-layer composite moisturizing cover is removed, pinching and short cutting are carried out on the scions with the length larger than 20 cm until 2-3 buds appear, leaf fertilizer containing monopotassium phosphate and chelated boron is sprayed to the scions with the length smaller than 15 cm, and light shielding treatment is carried out. The high-position grafting method has the advantages of being high in survival rate and rapid in scene formation, single-plant multi-variety symbiosis can be achieved, and the technical effect of improving the ornamental value and the economic value of woody flowers can be achieved.
Owner:SICHUAN AAS HORTICULTURE RES INST

Girdling knife (A)

ActiveCN309941397SFruit treeRing cutter
1. Name of the product in this design: Ring cutter (A). 2. Application of this design: for girdling, bark removal, and fruit tree bark treatment. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: the front view.
Owner:邱兆辉

Fruit tree girdling saw

The utility model relates to the technical field of fruit tree girdling, and particularly discloses a fruit tree girdling saw which comprises a handle and a saw frame connected with the handle, two parallel saw blades are installed on the outer side of the bottom of the saw frame, two parallel linear blades are installed on the inner side of the bottom of the saw frame, and the linear blades are arranged on the outer side of the handle. A U-shaped blade is installed at the end of the saw frame, the linear blade is located between the saw blades, a plurality of equilateral triangle sawteeth and parabola arc sawteeth are arranged at the bottom of each saw blade, and every four equilateral triangle sawteeth are spaced by two parabola arc sawteeth. The line-shaped blade is additionally arranged to be matched with the saw blade to scrape off old bark on the outer side, then the U-shaped blade scrapes off a nutrition layer located between the bark and a tree trunk, time and labor are saved, the thin and narrow saw blade can be adopted, the cost for replacing the saw blade is reduced, the phenomenon that teeth are pasted by scurf can be reduced, and installation is convenient.
Owner:刘瑞霞

Fruit tree girdling device

The utility model provides a fruit tree girdling device which comprises two fixing rings, each fixing ring comprises two semi-ring bodies, a connecting structure is arranged between the two semi-ring bodies, an installation frame is arranged between the upper fixing ring and the lower fixing ring in a sliding fit mode, two idler wheels are arranged in the installation frame in a rotating fit mode, and a cutting knife is arranged in the installation frame. A moving structure is arranged between the cutting knife and the mounting frame, a handle is fixed to one side of the mounting frame, and the handle comprises a first rod body and a second rod body. According to the fruit tree girdling device, the connecting structure is installed between the two semi-ring bodies, the installation frame is arranged between the upper fixing ring and the lower fixing ring, the idler wheels and the cutting knife are installed in the installation frame, and the device can be clamped on a tree through the fixing rings, so that the installation frame is conveniently pushed to rotate around the fruit tree, girdling is conveniently achieved, and the depth of the cutting knife can be limited; and the handle is installed on one side of the installation frame, the length of the handle can be increased, labor is saved in the using process, and the girdling difficulty is reduced.
Owner:临朐县人民政府东城街道办事处

Auxiliary girdling drill for removing trees

The utility model provides an auxiliary girdling drill for removing trees, which comprises a double-bent tool bit, a handle, a motor and a drill bit, the double-bent tool bit is detachably connected to one end of the handle, the motor is arranged inside the other end of the handle, the drill bit is detachably connected with a motor shaft of the motor, and the motor shaft can drive the drill bit to rotate; the double-bent tool bit comprises two arc-shaped blades and a tool bit clamping sleeve, the arc-shaped blades are fixedly arranged at one end of the tool bit clamping sleeve, the other end of the tool bit clamping sleeve is detachably connected with the handle, and cutting edges of the arc-shaped blades are arranged on the inner sides of the arcs. The girdling drill assisting in removing the tree is convenient to use, the double-bent cutter can rapidly girdle the tree bark, then the drill bit is used for drilling at the girdling position of the tree bark, next-step injection of a tree removing agent is facilitated, the cutter is connected in a detachable mode, and when a single part is damaged, the whole cutter does not need to be replaced; girdling surfaces for stripping barks are equal in size, drill holes are equal in size, and pesticide can be accurately applied.
Owner:BEIJING AORUI TECH CO LTD

Facility cherry planting method

The invention provides a facility cherry planting method, and relates to the field of cherry planting. The facility cherry planting method comprises the steps that a high-quality vigorous rootstock cherry variety which is high in quality, early-maturing and high in adaptability is selected, and it is ensured that a pollination variety and a main cultivation variety are consistent in flowering phase and good in affinity; honeybee pollination and artificial pollination medicine spraying are combined in the full-bloom stage, so that the pollination efficiency is improved; the paclobutrazol is sprayed to control flourishing, and it is ensured that flower and fruit falling is not affected; deeply plowing the land, applying sufficient organic fertilizer, laying a scientifically designed drip irrigation belt, and improving the soil condition; the cherry tree is shaped into a short crown cup shape through a real-time girdling method, and the tree body structure is optimized; intelligent temperature and humidity regulation and control equipment is installed, and environment parameters in the greenhouse are monitored and adjusted in real time. The problems that in the prior art, pollination efficiency is low, soil conditions are poor, tree management is unreasonable and environment regulation and control are not accurate are solved, high-yield, high-quality and efficient planting of cherries is achieved, and remarkable economic value and popularization significance are achieved.
Owner:WEIFANG ACADEMY OF AGRICULTURAL SCIENCES ( WEIFANG BRANCH OF SHANDONG ACADEMY OF AGRICULTURAL SCIENCES )

Girdling knife (C)

ActiveCN309941395SBiotechnologyFruit tree
1. Name of the product in this design: Ring cutter (C). 2. Application of this design: for girdling, bark removal, and fruit tree bark treatment. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view.
Owner:邱兆辉

Cuttage planting high-pressure propagation girdling device

The utility model relates to the field of agricultural inserting rod planting, in particular to a cutting planting high-pressure breeding girdling device which comprises a first holding block. A knife rest is fixedly connected to the front end of the first holding block, a blade is arranged on the knife rest, a second holding block is arranged at the right end of the first holding block, a cutting end is arranged in the direction, close to the second holding block, of the blade, and a liquid scraping assembly is arranged on the second holding block. The liquid scraping assembly comprises a first fixing block, a rotating shaft, a torsional spring, a second fixing block and a blocking piece. The blade is pushed on the knife rest, so that the cutting end on the blade cuts the surface of a branch, then the first holding block and the second holding block are rotated, the cutting end conducts annular cutting work on the surface of the branch, and after the cutting end cuts the skin of the surface of the branch, the cutting end cuts the surface of the branch. The blocking piece can be tightly attached to the branch on the scraping surface through the torsional spring on the rotating shaft, and the mucus on the surface of the outer skin of the cut branch is scraped away through the liquid scraping end of the blocking piece.
Owner:FUJIAN CHENGXIN BIOTECHNOLOGY CO LTD

Fruit tree girdling device with adjustable opening diameter and girdling width

The invention discloses a fruit tree girdling device with adjustable opening diameter and girdling width, and belongs to special tools for fruit tree pruning and management, the fruit tree girdling device comprises a fixed girdling piece, a movable girdling piece and clamp handles arranged at the tail ends of the fixed girdling piece and the movable girdling piece, the fixed girdling piece is provided with a multi-gear adjustable shaft hole, a clamp shaft is arranged in the shaft hole, and the movable girdling piece is arranged in the clamp shaft. After the movable girdling piece is connected with the clamp shaft, the movable girdling piece is rotatably connected with the fixed girdling piece; double-layer girdling blades are arranged at jaw positions of the fixed girdling piece and the movable girdling piece, three circular screw holes and a rectangular hole are formed in the surface of each double-layer girdling blade, gaskets and inner scraping knives are arranged in interlayers of the double-layer girdling blades, the gaskets and the circular screw holes are coaxially arranged, and the inner scraping knives are embedded into the rectangular holes. The method has the advantages of high efficiency, accuracy, flexibility, safety and the like.
Owner:贵阳市农业试验中心

A method for rapid propagation of Disanthus cercidifolius var. longipes

The present invention belongs to the technical field of plant breeding, and specifically relates to a method for rapid breeding of Disanthus cercidifolius var. longipes. A high-pressure mother plant is selected, and the high-pressure mother plant is a one-year-old fully lignified Disanthus cercidifolius var. longipes branch growing on the main trunk of a container seedling of Disanthus cercidifolius var. longipes. The high-pressure mother plant is subjected to girdling treatment, and the width of the girdling is 1-1.5 cm. Then, slurry is wrapped at the girdling site, tied tightly, and breeding is carried out. The slurry includes a substrate and a growth solution. The weight ratio of the substrate to the growth solution is 1.82-1.96:1. The substrate is composed of yellow heart soil, original soil of the mother tree forest, and perlite, and the weight ratio of yellow heart soil, original soil of the mother tree forest, and perlite is 2:2:1. The growth solution is composed of a GGR solution, an IBA solution, and a nutrient solution, and the weight ratio of the GGR solution, the IBA solution, and the nutrient solution is 1:1:1. The breeding method of the present invention has a short breeding time, a high survival rate of seedlings, strong operability, and low cost.
Owner:HUNAN PROVINCIAL BOTANICAL GARDEN

A method for high-altitude layering propagation of Aquilaria sinensis germplasm

The present invention discloses a method for propagating white aurantia odorifera germplasm by high-altitude layering. The method comprises the following steps: making a girdling cut on a branch, first applying a substrate A containing a rooting agent to the girdling cut, then adding a substrate B and coating and fixing the girdling cut; the rooting agent comprises naphthaleneacetic acid, indoleacetic acid, and trace elements. The method can promote rapid rooting of white aurantia odorifera germplasm, with a rooting rate exceeding 80%, thus overcoming the difficulty of rooting white aurantia odorifera germplasm.
Owner:INST OF MEDICINAL PLANT DEV CHINESE ACADEMY OF MEDICAL SCI HAINAN BRANCH

A shaping frame and method for preventing girdling damage to tree growth

The application discloses a shaping frame and method for preventing tree growth from being damaged by girdling, which comprises a righting support, a girdling device fixedly installed at one end of the top of the righting support, a supporting device movably installed at the other end of the top of the righting support, an adjusting device movably installed at the top of the supporting device, a guiding device fixedly installed at the top of the adjusting device, and clamping blades adhered to the epidermis of a tree when a fixed plate is moved, and the tree is observed regularly, and the girdling method is completed on the tree, so that the operation is convenient, the damage to the tree is reduced, the fixed knob is rotated, the semicircular block is locked, the growth angle of the branches of the tree is controlled, the tree is righted and shaped, the aesthetic degree and ornamental property of the tree are improved, the clamping block is clamped in the clamping holes at different heights, the branches of the tree at different heights are supported and shaped, different types of trees are adapted, and the application range is wider.
Owner:INST OF HIGHLAND FOREST SCI CHINESE ACAD OF FORESTRY

Fruit tree girdling device

The utility model discloses a fruit tree girdling device which comprises two groups of girdling frames which are hinged in a crossed mode, one end of each girdling frame is an arc-shaped end, and the fruit tree girdling device further comprises a sliding supporting assembly which is located at the hinged position of the two groups of girdling frames and composed of a supporting frame with an opening in one side and a plurality of rotating shafts. The rotating shaft rotates on the opening side of the supporting frame and is close to the arc-shaped end of the girdling frame. The force arm extension piece is hinged to a grip extending out of the other end of the girdling frame; the pre-cutting knife fixedly extends out from the inner side of the arc-shaped end of one group of girdling frames; and the fruit tree girdling knife is mounted at the end part, far away from the grip, of the other group of girdling frame and is matched with the pre-cutting knife to girdle the bark of the fruit tree. The utility model belongs to the technical field of fruit tree planting, particularly relates to a fruit tree girdling device, and aims to at least solve the problems that when a girdling device is used, a blade part is possibly broken and splashed due to direct contact with a fruit tree, and the girdling device is more labor-consuming when girdling a large-diameter fruit tree.
Owner:HEBEI AGRICULTURAL UNIV.

A rejuvenation method to promote the recovery of ancient Torreya grandis trees

PendingCN122271145ABarkTorreya grandis
This invention relates to the field of tree vigor restoration technology, specifically to a method for promoting the rejuvenation of ancient Torreya grandis trees, comprising the following steps: S1, timing of operation: performing rejuvenation girdling at the end of the dormant period of the ancient Torreya grandis tree until before bud break; S2, pretreatment of the operation area: cleaning the surface of the phloem area to be girdled in the upper part of the trunk of the ancient Torreya grandis tree, removing rotten bark and debris, and then disinfecting; S3, girdling of the phloem: in the upper part of the pretreated trunk of the ancient Torreya grandis tree, setting two semi-circular girdling cracks that are axially spaced apart and circumferentially staggered by 180° along the trunk circumference, the width of the girdling cracks is 5-6 cm, the girdling depth penetrates the phloem but does not damage the xylem, and the instantaneous phloem cut rate after girdling is less than 50% of the trunk circumference; S4, post-girdling protection and maintenance: applying an antiseptic and moisturizing agent to the phloem cracks formed by girdling to complete the rejuvenation and protection treatment after girdling.
Owner:AGRI MASCH EQUIP & ENG RES INST ANHUI ACAD OF AGRI SCI