Multifunctional branch adjusting tool and application thereof in fruit tree adjusting

Abstract

The application relates to a multifunctional branch adjusting tool and application thereof in fruit tree adjustment, and relates to the field of agricultural cultivation. The device comprises a threaded rod one, the surface of the threaded rod one is fixedly connected with a fixed sleeve, the surface of the threaded rod one is threadedly connected with two symmetrical threaded sleeves, the surface of the threaded sleeve is fixedly connected with a connecting rod, the other end of the connecting rod is fixedly connected with a spiral strip, the surface of the threaded sleeve is fixedly connected with a connecting sleeve, and the inner cavity of the connecting sleeve is threadedly connected with a threaded rod two. The application can be used for clamping one spiral strip on a trunk, clamping another spiral strip on a branch, rotating the threaded rod one, making the threaded sleeve and the threaded rod one threadedly move, making the two spiral strips move towards or away from each other, adjusting the interval between the two spiral strips, avoiding the fact that the spiral strip and the threaded rod one cannot be matched with the angle between the trunk and the branch, and improving the application range of the adjusting tool.

Description

Technical Field

[0001] This application relates to the field of agricultural cultivation, and in particular to a multifunctional branch adjustment tool and its application in fruit tree adjustment. Background Technology

[0002] Fruit trees have non-fruiting vegetative branches and fruiting branches. Vegetative branches mostly grow upwards, while fruiting branches mostly grow downwards. In actual management, it is necessary to shape and thin the fruiting branches. Some fruiting branches need to have their growth direction corrected to make the tree shape more balanced and achieve the effect of increasing yield and improving quality. Fruit tree branches can be corrected by supporting, pulling, or separating them. When correcting fruit tree branches, it is necessary to use the appropriate tools according to the method of correction.

[0003] Currently, fruit tree branches are mostly straightened using adjustment tools. However, due to the varying conditions of fruit trees, the lengths and angles of the branches requiring correction differ. Adjusting branches of different lengths or angles requires using appropriate adjustment tools (currently, the most common methods involve using plastic bags filled with soil and tied with ropes to pull the branches and adjust their angles; this is cumbersome and pollutes the environment; or one end of a plastic rope is tied to the branch, and the other end to the trunk; or other single-function, fixed-size adjustment tools are used). Changing between multiple adjustment tools is inconvenient. Therefore, a multi-functional branch adjustment tool is needed. This tool can adjust branches of different lengths and angles through its adjustable structure, avoiding the incompatibility of adjustment tools with branches of different lengths and angles, thus increasing the tool's applicability and improving its convenience and suitability when straightening fruit tree branches. Summary of the Invention

[0004] To address the existing technical problems, this application provides a multifunctional branch adjustment tool and its application in fruit tree regulation.

[0005] This application provides a multifunctional branch adjustment tool, which adopts the following technical solution: A multifunctional branch adjustment tool includes a threaded rod one, a fixed sleeve fixedly connected to the surface of the threaded rod one, two symmetrical threaded sleeves threadedly connected to the surface of the threaded rod one, a connecting rod fixedly connected to the surface of the threaded sleeve, a spiral strip fixedly connected to the other end of the connecting rod, a connecting sleeve fixedly connected to the surface of the threaded sleeve, a threaded rod two threadedly connected to the inner cavity of the connecting sleeve, and a fixed ring fixedly connected to the end of the threaded rod two away from the connecting sleeve.

[0006] By adopting the above technical solution, one spiral strip is clamped onto the tree trunk, and another spiral strip is clamped onto a branch. Rotating the threaded rod causes the threaded sleeve and the threaded rod to move in a threaded manner, allowing the two spiral strips to move in opposite directions or in opposite directions. This adjusts the distance between the two spiral strips, preventing the spiral strips and the threaded rod from being unable to adapt to the angle between the tree trunk and the branch, and improving the applicability of the adjustment tool.

[0007] Preferably, the surface of the threaded sleeve is fixedly connected with two symmetrical anti-slip strips. The anti-slip strips are elongated, and the side of the anti-slip strip away from the threaded sleeve is cylindrical.

[0008] Preferably, the surface of the threaded sleeve has a threaded hole, which is located on the side of the threaded sleeve away from the connecting sleeve, and the inner cavity of the threaded hole is threadedly connected to a threaded rod.

[0009] By adopting the above technical solution, through the cooperation of the threaded hole and the threaded rod three, after the spacing between the two spiral strips is adjusted, the rotating torsion block causes the threaded rod three to move with the threaded hole, so that the threaded rod three enters the inner cavity of the threaded sleeve and fits against the threaded rod one. At this time, the threaded rod three will limit the threaded sleeve, preventing the threaded sleeve from rotating on the surface of the threaded rod one, thus improving the stability of the threaded sleeve on the surface of the threaded rod one.

[0010] Preferably, a torsion block is fixedly connected to the end of the threaded rod away from the threaded sleeve, and two symmetrical fixing rods are fixedly connected to the surface of the torsion block.

[0011] Preferably, the surface of the connecting rod is covered with an anti-slip sleeve, which is a rubber protective sleeve and is L-shaped.

[0012] By adopting the above technical solution, the anti-slip sleeve prevents the connecting rod from contacting the branch when the spiral strip and connecting rod are used to straighten the branch. This prevents the contact point between the branch and the connecting rod from cracking due to compression, thus reducing damage during branch straightening.

[0013] Preferably, the fixing sleeve is hexagonal, the connecting rod is Z-shaped, the corners of the connecting rod are rounded, the spiral is spiral-shaped, and the two ends of the spiral are pointed.

[0014] Preferably, the surface of the anti-slip strip is provided with anti-slip texture, the spiral strip does not contact the threaded rod, and the side of the threaded sleeve away from the connecting sleeve is rectangular.

[0015] Preferably, the connecting rod is welded to or integrally formed with the spiral strip; the threaded sleeve is threadedly connected to the connecting rod, and the threaded strip together with the connecting rod can be detached from the threaded sleeve to form tool A for independent use.

[0016] This application also provides an application of a multifunctional branch adjustment tool in fruit tree regulation, including the following steps:

[0017] (1) Planting: Select healthy one-year-old seedlings with a height greater than 1m and a diameter of about 1cm 5cm above the grafting point on the central trunk for planting. Select a main branch with a plump bud within 50cm in height as the central trunk. As the new shoots grow, use thin bamboo poles to tie the new shoots to ensure that the seedlings grow upright. In the second year, make bud notches on the central trunk cultivated in the first year about one week after the buds sprout. Specifically, do not notch the buds on branches within 50cm from the ground and branches within 20cm from the top of the tree. Notch each of the remaining buds in the middle. Make a 2 / 3 circle 1cm above the bud, with a width of 0.5cm, and notch down to the xylem to inhibit the growth of the upper bud, weaken its growth vigor, promote the growth and development of medium and short branches, and control the yield in conjunction with the following angle opening measures.

[0018] (2) Initial opening angle: When the new shoots grow to about 20cm, use tool A to make the initial opening angle. There are two methods:

[0019] Method 1: When the new shoots are short, use the connecting rod 4 of tool A to attach it to the branch, and insert the other end into the central trunk to support the branch. The opening angle is 70-80°, preferably 75°.

[0020] Method 2: Use tool A to twist the branch. During the twisting process, instead of forcibly inserting the branch into tool A from top to bottom, rotate the branch while gently inserting it into the spiral strip 5 of tool A. This slows down the upward growth of the branch and is more conducive to opening the branch angle. If tool A is not long enough, the entire multi-functional branch adjustment tool can be assembled and used. This will allow for a longer twisting length to meet actual production needs. The opening angle is 70-80°, preferably 75°.

[0021] (3) Re-opening the angle: When the new shoots continue to grow and the branches grow upwards excessively, it is necessary to further maintain the correct angle of the branches. If tool A is used alone when opening the angle, and the length is insufficient, tool A should be removed and the entire multi-functional branch adjustment tool should be assembled for use. At this time, there are two methods as follows:

[0022] Method 1: Assemble the entire multi-functional branch adjustment tool and insert one end, i.e. the end of the spiral bar 5, into the central trunk, and insert the other end, i.e. the end of the spiral bar 5 in the other direction, into the new shoot to support the branch, ensuring that the angle is 70-80°, preferably 75°.

[0023] Method 2: Insert one end of the multi-functional branch adjustment tool, i.e. the end of the spiral bar 5, into the central trunk, and use the Z-shaped part of the connecting rod 4 in the other direction to hold the branch and support it.

[0024] (4) Branch Pulling: When branches are too long and need to be rearranged, if the length is greater than 1.2m, branch pulling is necessary. Choose a relatively open space and rotate the branch to that position. Then find the stress point of the branch (the stress point can be chosen arbitrarily). Tie one end of the hemp rope to the stress point of the branch. Then, first, rotate the end of the spiral 5 of tool A into the soil, and then tie the other end of the hemp rope to the threaded hole 10 at the other end of tool A. For branches that are too curved, to ensure the branch angle after pulling, in addition to using tool A alone for branch pulling, use another tool A for branch twisting. While rotating the branch, gently insert the branch into the spiral 5 of tool A. This can better slow down the upward growth trend of the branch and achieve the purpose of opening the branch angle. Compared to ordinary plastic rope, hemp rope does not need to be recycled. It is made of pure natural materials, is biodegradable, and will not cause environmental pollution.

[0025] This application also provides an application of the above-described method in any of the following:

[0026] (1) Application in increasing pear yield;

[0027] (2) Application in increasing apple tree yield;

[0028] (3) Application in promoting the sprouting and fruiting capacity of short branches in fruit trees;

[0029] (4) Application in weakening the development of upper buds on fruiting branches;

[0030] (5) Application in promoting fruit trees to enter the peak fruiting period earlier.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. This invention involves attaching one spiral strip to the tree trunk and another spiral strip to a branch. By rotating the threaded rod, the threaded sleeve and the threaded rod move in a threaded motion, causing the two spiral strips to move in opposite directions or in opposite directions. This allows for adjustment of the distance between the two spiral strips, preventing the spiral strips and the threaded rod from being unable to adapt to the angle between the tree trunk and the branch, thus improving the applicability of the adjustment tool.

[0033] 2. In this invention, the threaded hole and the threaded rod three are used in combination. After the distance between the two spiral bars is adjusted, the torsion block is rotated to make the threaded rod three move with the threaded hole. This causes the threaded rod three to enter the inner cavity of the threaded sleeve and fit against the threaded rod one. At this time, the threaded rod three will limit the threaded sleeve and prevent the threaded sleeve from rotating on the surface of the threaded rod one, thereby improving the stability of the threaded sleeve on the surface of the threaded rod one.

[0034] 3. By using an anti-slip sleeve, the present invention prevents the connecting rod from contacting the branch when the spiral strip and connecting rod are straightening the branch, thus preventing cracking at the contact point between the branch and the connecting rod due to compression and reducing damage during branch straightening.

[0035] 4. Using this tool with hemp rope, the angle of branches can be adjusted from new shoots to long branches, making it easy to shape the tree without having to buy separate branch support, branch pulling, or branch binding tools. It is simple to operate and can be reused and used interchangeably.

[0036] 5. The method of fruit tree branch regulation using the multifunctional branch regulation tool of this invention yields the highest fruit tree output, reaches the peak fruiting period one year earlier, and avoids the formation of upper-strong and lower-weak fruiting branch groups. The sprouting and fruiting capacity of medium and short branches are significantly enhanced. Bud notching weakens the development of upper buds on the fruit tree. The specific location, depth, and width of the notching affect the sprouting and fruiting capacity of the pear tree. Research has found that in the second year of application, notching is performed on the central trunk buds cultivated in the first year, approximately one week after sprouting. A 2 / 3 circle is notched 1cm above the bud, with a width of 0.5cm, reaching the xylem. Combined with measures such as the timing of initial opening, the opening angle, and the timing of branch pulling to maintain an opening angle of 75°, this comprehensive regulation of pear tree fruiting capacity and yield allows the pear tree to enter the peak fruiting period earlier and achieve the highest yield.

[0037] 6. After comparison with other varieties, the method of fruit tree branch adjustment using the multifunctional branch adjustment tool of this invention can also be applied to varieties such as apples, indicating that the method has wide applicability. Among them, the comparison on 2-year-old Golden Pear seedlings shows that the tool and method of this application are more suitable for early intervention and adjustment of fruit trees, and the intervention on 1-year-old seedlings can better show the effect of increasing yield by entering the peak fruiting period earlier. Attached Figure Description

[0038] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

[0039] Figure 1 This is a diagram showing the combined use of the threaded rod and the helical strip of this invention.

[0040] Figure 2 This is a three-dimensional schematic diagram of the structure of the present invention.

[0041] Figure 3 This is a three-dimensional disassembled schematic diagram of the structure of the present invention.

[0042] Figure 4 This is the structure of the present invention. Figure 3 A magnified view of point A in the middle.

[0043] Figure 5 This is a frontal view of the initial opening angle used in the structural disassembly of this invention.

[0044] Figure 6 This is a front view schematic diagram of the structural splitting and branching method used in this invention.

[0045] Explanation of reference numerals in the attached drawings: 1. Threaded rod one; 2. Fixing sleeve; 3. Threaded sleeve; 4. Connecting rod; 5. Spiral strip; 6. Connecting sleeve; 7. Threaded rod two; 8. Fixing ring; 9. Anti-slip strip; 10. Threaded hole; 11. Threaded rod three; 12. Torsion block; 13. Fixing rod; 14. Anti-slip sleeve. Detailed Implementation

[0046] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0047] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0048] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0049] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0050] In addition, the term "multiple" should mean two or more.

[0051] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0052] Example 1:

[0053] Combination Figure 2 and Figure 4 This application discloses a multifunctional branch adjustment tool, including a threaded rod 1. A fixing sleeve 2 is fixedly connected to the surface of the threaded rod 1. Two symmetrical threaded sleeves 3 are threadedly connected to the surface of the threaded rod 1. Two symmetrical anti-slip strips 9 are fixedly connected to the surface of the threaded sleeves 3. The anti-slip strips 9 are elongated, with the side of the anti-slip strip 9 away from the threaded sleeve 3 being cylindrical. The surface of the anti-slip strips 9 is provided with anti-slip texture. A spiral strip 5 does not contact the threaded rod 1. The side of the threaded sleeve 3 away from the connecting sleeve 6 is rectangular. The fixing sleeve 2 is hexagonal. The connecting rod 4 is Z-shaped with rounded corners. The spiral strip 5 is spiral-shaped. The surface of the threaded sleeve 3 is fixedly connected to the fixing sleeve 2. A connecting rod 4 is fixedly connected, and an anti-slip sleeve 14 is fitted on the surface of the connecting rod 4. The anti-slip sleeve 14 is a rubber protective sleeve and is L-shaped. By setting the anti-slip sleeve 14, when the spiral strip 5 and the connecting rod 4 are straightening the branch, the anti-slip sleeve 14 will prevent the connecting rod 4 from contacting the branch, preventing the contact point between the branch and the connecting rod 4 from cracking due to compression, and reducing the damage during the straightening of the branch. The other end of the connecting rod 4 is fixedly connected to the spiral strip 5. The surface of the threaded sleeve 3 is fixedly connected to the connecting sleeve 6. The inner cavity of the connecting sleeve 6 is threadedly connected to the threaded rod 7. The end of the threaded rod 7 away from the connecting sleeve 6 is fixedly connected to the fixing ring 8.

[0054] Combination Figure 3 and Figure 4The threaded sleeve 3 has a threaded hole 10 on its surface, located on the side of the threaded sleeve 3 away from the connecting sleeve 6. A threaded rod 11 is threadedly connected to the inner cavity of the threaded hole 10. Through the cooperation of the threaded hole 10 and the threaded rod 11, after adjusting the distance between the two spiral strips 5, rotating the torsion block 12 causes the threaded rod 11 to move threadedly with the threaded hole 10, allowing it to enter the inner cavity of the threaded sleeve 3 and fit against the threaded rod 1. At this time, the threaded rod 11 limits the movement of the threaded sleeve 3, preventing it from rotating on the surface of the threaded rod 1, thus improving the stability of the threaded sleeve 3 on the surface of the threaded rod 1. A torsion block 12 is fixedly connected to the end of the threaded rod 11 away from the threaded sleeve 3, and two symmetrical fixing rods 13 are fixedly connected to the surface of the torsion block 12. The connecting rod is welded to or integrally formed with the spiral strip; the threaded sleeve is threadedly connected to the connecting rod; the threaded strip 5, together with the connecting rod 4, can be detached from the threaded sleeve 3 to form tool A for independent use.

[0055] Working principle: When using this invention, as follows... Figure 1 As shown, the user secures one spiral strip 5 to the surface of the tree trunk and another spiral strip 5 to the surface of a branch. Rotating the threaded rod 1 causes the threaded rod 1 and threaded sleeve 3 to move threadedly, allowing the threaded sleeve 3 to slide on the surface of the threaded rod 1. This adjusts the distance between the two spiral strips 5, enabling them to limit and correct branches of different lengths and angles. This prevents the spiral strips 5 and threaded rod 1 from being unable to adapt to the angle between the tree trunk and branches, thus increasing the applicability of the adjustment tool. After adjusting the distance between the two spiral strips 5, rotating the torsion block 12 causes the threaded rod 31 to move threadedly with the threaded hole 10. This allows the threaded rod 31 to enter the inner cavity of the threaded sleeve 3 and fit against the threaded rod 11. At this point, the threaded rod 311 limits the movement of the threaded sleeve 3, preventing it from rotating on the surface of the threaded rod 1, thus improving the stability of the threaded sleeve 3 on the surface of the threaded rod 1. Figure 5 As shown, when performing the initial angle opening operation on the branches, the spiral bar 5 can be removed and used separately to perform the initial angle opening operation on the branches, such as... Figure 6 As shown, when pulling branches, the spiral bar 5 can be removed, the spiral bar 5 can be rotated and inserted into the ground, then a hemp rope can be tied to the surface of the fixing ring 8, and the other end of the hemp rope can be tied to the branch. This method is applicable to various branch adjustment operations.

[0056] In summary, this multifunctional branch adjustment tool works by attaching one spiral 5 to the tree trunk and another spiral 5 to the branch. Rotating the threaded sleeve 3 causes the threaded sleeve 3 and the threaded rod 1 to move in opposite directions, allowing the two spirals 5 to move in opposite directions. This adjusts the distance between the two spirals 5, preventing the spirals 5 and the threaded rod 1 from being unable to adapt to the angle between the tree trunk and the branch, thus improving the applicability of the adjustment tool.

[0057] Example 2:

[0058] The application of the multifunctional branch adjustment tool in fruit tree regulation according to Example 1 includes the following steps:

[0059] (1) Planting: Select healthy one-year-old seedlings with a height greater than 1m and a diameter of about 1cm 5cm above the grafting point on the central trunk for planting. Select a main branch with a plump bud within 50cm in height as the central trunk. As the new shoots grow, use thin bamboo poles to tie the new shoots to ensure that the seedlings grow upright. In the second year, make bud notches on the central trunk cultivated in the first year about one week after the buds sprout. Specifically, do not notch the buds on branches within 50cm from the ground and branches within 20cm from the top of the tree. Notch each of the remaining buds in the middle. Make a 2 / 3 circle notch 1cm above the bud, with a width of 0.5cm, and notch down to the xylem to inhibit the growth of the upper bud, weaken its growth vigor, promote the growth and development of medium and short branches, and control the yield in conjunction with the following angle opening measures.

[0060] (2) Initial opening angle: When the new shoots grow to about 20cm, use tool A to make the initial opening angle. There are two methods:

[0061] Method 1: For short new shoots, use tool A, connecting rod 4, to attach to the branch, with the other end inserted into the central trunk for support (e.g., Figure 5 (Right side), with an opening angle of 75°;

[0062] Method 2: Use tool A to twist the branch. During the twisting process, do not force the branch into tool A from top to bottom (e.g., Figure 5 Instead of rotating the branch (left side), the branch is gently inserted into the spiral bar 5 of tool A, slowing its upward growth and making it easier for the branch to open up its angle. If tool A is not long enough, the entire multi-functional branch adjustment tool can be assembled and used (e.g., left side). Figure 1 The opening angle is 75°;

[0063] (3) Re-opening the angle: When the new shoots continue to grow and the branches grow upwards excessively, it is necessary to further maintain the correct angle of the branches. If tool A is used alone when opening the angle, and the length is insufficient, tool A should be removed and the entire multi-functional branch adjustment tool should be assembled for use. At this time, there are two methods as follows:

[0064] Method 1: Insert one end of the multi-functional branch adjustment tool, i.e. the end of the spiral bar 5, into the central trunk, and the other end, i.e. the end of the spiral bar 5 in the other direction, into the new shoot to support the branch, ensuring that the angle is 75°.

[0065] Method 2: Insert one end of the multi-functional branch adjustment tool, i.e., the end of the spiral bar 5, into the central trunk, and use the Z-shaped part of the connecting rod 4 in the opposite direction to hold the branch in place for support (e.g., Figure 5 (Right side);

[0066] (3) Branch Pulling: When branches are too long and need to be rearranged, if the length is greater than 1.2m, branch pulling is required first. Specifically, choose a relatively open space and rotate the branch to this position. Then find the stress point of the branch. The stress point can be chosen arbitrarily. Tie one end of the hemp rope to the stress point of the branch. Then, first insert the end of the spiral 5 of tool A into the soil (e.g., Figure 6 Then tie the other end of the hemp rope to the threaded hole 10 at the other end of tool A; in order to ensure that the branch angle is 75° after the branch is pulled, on the basis of using tool A alone to pull the branch, use another tool A to twist the branch. While rotating the branch, the branch is inserted into the spiral bar 5 of tool A to slow down the upward growth trend of the branch.

[0067] In summary, the specific application method of this multifunctional branch adjustment tool, including the above-mentioned steps such as planting, angle opening, further angle opening, and branch pulling, allows the fruit tree to basically reach the ideal angle conducive to fruiting after a series of adjustment steps. The tree shape is basically formed, which facilitates future management and allows the tree to flower and bear fruit earlier, entering the peak fruiting period.

[0068] Experiment 1: The Effects of Different Branch Regulation Methods on Fruit Tree Growth

[0069] Experimental Methods: A fruit tree experimental orchard in Changli County, Hebei Province, was selected. The overall environment of the orchard was largely uniform. Healthy, disease-free seedlings of superior varieties such as Huangguan pear, Yulu fragrant pear, golden pear, Red Fuji, Wanglin, and Gala were planted. A main branch with a plump bud within 50cm in height was selected as the central leader. The experimental plot numbers and treatment methods are shown in the table below. During the experiment, the same water and fertilizer management was applied uniformly. In the second year, the central leaders cultivated in the first year were notched approximately one week after bud sprouting. The average number of branches per tree in each experimental plot was observed in the year of notching. The peak fruiting period of each experimental plot was continuously monitored, and the yield in the peak fruiting year of each experimental plot was converted to 10,000 kg / hm². 2 .

[0070] Experimental Example 1: Same as Example 2, except that the bud carving was replaced by carving 1 / 2 circle 1cm above the bud.

[0071] Experimental Example 2: Same as Example 2, except that the bud carving was replaced by carving one circle 1cm above the bud.

[0072] Experimental Example 3: Same as Example 2, except that the bud carving was replaced by carving 1 / 2 circle 1.5cm above the bud.

[0073] Experimental Example 4: Same as Example 2, except the bud width was changed to 0.2cm.

[0074] Experimental Example 5: Same as Example 2, except the bud width was changed to 1cm.

[0075] Experimental Example 6: Same as Example 2, the initial opening angle was reached when the new shoots grew to about 50cm.

[0076] Experimental Example 7: Same as Example 2, but with an initial opening angle of 70°.

[0077] Experimental Example 8: Same as Example 2, but with an initial opening angle of 80°.

[0078] Experimental Example 9: Same as Example 2, but with an initial opening angle of 100°.

[0079] Experimental Example 10: Same as Example 2, but with branches longer than 1m.

[0080] Experimental Example 11: Same as Example 2, but with a length greater than 2m, the branches were pulled.

[0081] Experimental Example 12: Same as Example 2, but buds within 50cm of the ground were not carved, and all remaining buds were carved.

[0082] Experimental Example 13: Same as Example 2, but buds on branches within 20cm of the tree top are not notched, and each remaining bud is notched.

[0083] Comparative Example 1: Same as Example 2, except that the Golden Crown Pear was used instead of the Golden Pear.

[0084] Comparative Example 2: Same as Example 2, but using Yulu Xiangli pear instead of Golden Pear.

[0085] Comparative Example 3: Same as Example 2, but using 2-year-old golden pear seedlings for planting.

[0086] Comparative Example 4: Same as Example 2, except that Red Fuji apples were used instead of Golden pears.

[0087] Comparative Example 5: Same as Example 2, but Wang Lin replaced the golden pear.

[0088] Comparative Example 6: Same as Example 2, but Gala pear was used instead of Golden Pear.

[0089] Table 1

[0090]

[0091]

[0092] Experimental results:

[0093] The method for regulating fruit tree branches using the multifunctional branch regulation tool of this invention in Embodiment 2 of this application yields the highest fruit tree output and achieves peak fruiting year one year earlier, i.e., entering peak fruiting year 3 after planting. Furthermore, it avoids the formation of upper-strong, lower-weak fruiting branch groups, and significantly enhances the sprouting and fruiting capacity of medium and short branches. Notching weakens the development of upper buds in fruit trees. The specific location, depth, and width of the notching all affect the sprouting and fruiting capacity of the fruit tree. Studies have found that pear trees have the strongest fruiting capacity when they have 25-28 fruiting branch groups. When the notching depth and width are insufficient, the sprouting capacity of upper buds increases, resulting in excessively rapid and numerous fruiting branch groups, leading to uneven fruiting and a trend of upper-strong, lower-weak branches, which is detrimental to maintaining stable yield during the peak fruiting period. Research has shown that, in the second year of this application, bud notching was performed on the central stem cultivated in the first year about one week after bud sprouting. A 2 / 3 circle, 0.5 cm wide, was notched 1 cm above the bud, reaching the xylem. This method effectively inhibited the growth of the upper bud and weakened its growth vigor compared to other experimental examples, while promoting the growth and development of medium and short branches. Combined with measures such as the timing of initial opening, the opening angle, and the timing of branch pulling to maintain an opening angle of 75°, this comprehensive regulation of pear tree fruiting capacity and yield enabled the pear tree to enter its peak fruiting period earlier and achieve the highest yield.

[0094] Meanwhile, we compared other varieties, such as the superior varieties Huangguan pear, Yulu fragrant pear, Red Fuji, Wanglin, Gala, and two-year-old seedlings of Golden Pear, and found that the method of regulating fruit tree branches using the multifunctional branch regulation tool of this invention can also be applied to multiple varieties such as apple and pear trees, indicating that the method has wide applicability. Among them, the comparison on two-year-old Golden Pear seedlings showed that the tool and method of this application are more suitable for early intervention and regulation of fruit trees, and the intervention on one-year-old seedlings can better show the effect of increasing yield by entering the peak fruiting period earlier.

[0095] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A multifunctional branch adjustment tool, characterized in that, The system includes a threaded rod (1), a fixed sleeve (2) fixedly connected to the surface of the threaded rod (1), two symmetrical threaded sleeves (3) threadedly connected to the surface of the threaded rod (1), a connecting rod (4) connected to the surface of the threaded sleeve (3), a spiral strip (5) connected to the other end of the connecting rod (4), a connecting sleeve (6) fixedly connected to the surface of the threaded sleeve (3), a threaded rod (7) threadedly connected to the inner cavity of the connecting sleeve (6), and a fixed ring (8) fixedly connected to the end of the threaded rod (7) away from the connecting sleeve (6); a threaded hole (10) is opened on the surface of the threaded sleeve (3), and the threaded rod... The hole (10) is located on the side of the threaded sleeve (3) away from the connecting sleeve (6). The inner cavity of the threaded hole (10) is threadedly connected to the threaded rod three (11). The end of the threaded rod three (11) away from the threaded sleeve (3) is fixedly connected to the torsion block (12). The surface of the torsion block (12) is fixedly connected to two symmetrical fixing rods (13). The connecting rod (4) is welded to or integrally formed with the spiral strip (5). The connecting rod (4) is Z-shaped. The threaded sleeve (3) is threadedly connected to the connecting rod (4). The threaded strip (5) together with the connecting rod (4) can be disassembled from the threaded sleeve (3) to form tool A for independent use.

2. The multifunctional branch adjustment tool according to claim 1, characterized in that: Two symmetrical anti-slip strips (9) are fixedly connected to the surface of the threaded sleeve (3). The anti-slip strips (9) are long strips, and the side of the anti-slip strips (9) away from the threaded sleeve (3) is cylindrical. The surface of the anti-slip strips (9) is provided with anti-slip texture. The spiral strip (5) does not contact the threaded rod (1). The side of the threaded sleeve (3) away from the connecting sleeve (6) is rectangular.

3. The multifunctional branch adjustment tool according to claim 2, characterized in that: The surface of the connecting rod (4) is covered with an anti-slip sleeve (14), which is a rubber protective sleeve and is L-shaped.

4. The multifunctional branch adjustment tool according to claim 1, characterized in that: The fixing sleeve (2) is hexagonal, the corners of the connecting rod (4) are rounded, and the spiral strip (5) is spiral-shaped with pointed ends.

5. The application of the multifunctional branch adjustment tool of claim 1 or 4 in fruit tree regulation, characterized in that: Includes the following steps: (1) Planting: Select robust one-year-old seedlings with a height greater than 1m and a diameter of about 1cm 5cm above the grafting point on the central trunk for planting. Select a main branch with a plump bud within 50cm in height for planting as the central trunk. As the new shoots grow, use thin bamboo poles to tie the new shoots to ensure that the seedlings grow upright. In the second year, make bud cuts on the central trunk cultivated in the first year about one week after the buds sprout. Specifically, make 2 / 3 circles 1cm above the bud, with a width of 0.5cm, cut to the xylem to inhibit the growth of the upper bud, weaken its growth vigor, promote the growth and development of medium and short branches, and control the yield in conjunction with the following angle opening measures. (2) Initial opening angle: When the new shoots grow to about 20cm, use tool A to make the initial opening angle. There are two methods: Method 1: When the new shoots are short, use the connecting rod (4) of tool A to attach it to the branch, and insert the other end into the central trunk to support the branch. The opening angle is 75°. Method 2: Use tool A to twist the branch. During the twisting process, instead of forcibly inserting the branch into tool A from top to bottom, rotate the branch while inserting it into the spiral bar (5) of tool A to slow down the upward growth of the branch and make it more conducive to the opening of the branch angle. If tool A is not long enough, the entire multi-functional branch adjustment tool can be assembled and used with an opening angle of 75°. (3) Re-opening the angle: When the new shoots continue to grow and the branches grow upwards excessively, it is necessary to further maintain the correct angle of the branches. If tool A is used alone when opening the angle, and the length is insufficient, tool A needs to be removed and the entire multi-functional branch adjustment tool needs to be assembled. At this time, there are two methods as follows: Method 1: Assemble the entire multi-functional branch adjustment tool and insert one end, i.e. the end of the spiral bar (5), into the central trunk, and insert the other end, i.e. the end of the spiral bar (5) in the other direction, into the new shoot to support the branch, ensuring that the angle is 75°. Method 2: Insert one end of the multi-functional branch adjustment tool, i.e. the end of the spiral bar (5), into the central trunk, and use the Z-shaped part of the connecting rod (4) in the other direction to hold the branch for support. (4) Branch pulling: When the branches are too long and need to be rearranged in space, if the length is greater than 1.2m, the branches need to be pulled first. Specifically, choose a relatively open space and rotate the branches to this position. Then find the stress point of the branches. The stress point can be chosen arbitrarily. Tie one end of the hemp rope to the stress point of the branches. Then first rotate the end of the spiral strip (5) of tool A into the soil. Then tie the other end of the hemp rope to the threaded hole (10) of the other end of tool A. In order to ensure the branching angle after pulling the branches, on the basis of using tool A to pull the branches alone, use another tool A to twist the branches. While rotating the branches, insert the branches into the spiral strip (5) of tool A to slow down the upward growth trend of the branches.

6. The application of claim 5 in any of the following: (1) Application in increasing pear yield; (2) Application in increasing apple tree yield; (3) Application in promoting the sprouting and fruiting capacity of short branches in fruit trees; (4) Application in weakening the development of upper buds on fruiting branches; (5) Application in promoting fruit trees to enter the peak fruiting period earlier.

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