Litsea cubeba planting method

Abstract

The invention relates to a planting method of litsea cubeba in the field of economic forest and forest cultivation. The planting method comprises the following steps: planting litsea cubeba on a planting land according to a preset row spacing and a preset plant spacing; the preset row spacing ranges from 4 m to 6 m, and the preset plant spacing ranges from 1.8 m to 2.2 m. By means of the optimized planting mode, the yield of the litsea cubeba is increased.

Description

Technical Field

[0001] The present application relates to the fields of economic forests and forest cultivation, and in particular, to a method for planting Litsea cubeba. Background Art

[0002] Litsea cubeba is a "cash cow" that combines multiple uses such as natural spice, food, medicine, ornamental, and bioenergy. The industrial utilization of Litsea cubeba is mainly based on the volatile essential oil obtained by distillation of fresh fruit, which is usually called Litsea cubeba oil. But so far, Litsea cubeba is still mainly harvested from wild resources, and only a few areas use artificial afforestation. Due to the lack of density control, stem shape control, water and fertilizer management, mechanical operation and other technologies, the quality of Litsea cubeba artificial forests is generally not high. In addition, due to the high cost of mountain irrigation, fertilization and picking, the low operating efficiency and low investment enthusiasm of growers have seriously affected the stable supply of Litsea cubeba oil. In order to ensure the sustainable development of the Litsea cubeba industry, it is necessary to improve the operating efficiency and quality of Litsea cubeba forests. In view of this, this application is specially proposed. Summary of the invention

[0003] One or more embodiments of the present application provide a method for planting Litsea cubeba, including the following technical solutions:

[0004] One or more embodiments of the present application provide a method for planting Litsea cubeba, the planting method comprising the following steps:

[0005] Plant Litsea cubeba on the planting ground according to the preset row spacing and the preset plant spacing;

[0006] The preset row spacing is 4 meters to 6 meters, and the preset plant spacing is 1.8 meters to 2.2 meters;

[0007] If the planting land is a slope:

[0008] The planting method comprises firstly preparing the land using a strip tillage mode, and then planting the litsea cubeba on the prepared planting belt terrace surface according to the preset row spacing and the preset plant spacing;

[0009] The preset line spacing is the projection distance;

[0010] There are reserve strips between adjacent planting strips;

[0011] Under the condition that the slope of the slope is less than or equal to 15 degrees, the terrace width of the planting belt is set to 2 meters to 3 meters, and the projection width of the reserved belt is set to 1 meter to 2 meters;

[0012] Under the condition that the slope of the slope is greater than 15 degrees, the terrace width of the planting belt is set to 0.3 meters to 0.5 meters, and the projection width of the reserved belt is set to 3 meters to 4 meters.

[0013] In some embodiments of the present application, the planting site is cleaned before land preparation; further optionally, the cleaning process mainly involves removing weeds and / or stones.

[0014] In some embodiments of the present application, the planting method further includes: laying a transport track on the retaining belt.

[0015] In some embodiments of the present application, during the planting process, the dimensions of the planting holes dug are: a cross-sectional length of 0.4 m-0.5 m, a cross-sectional width of 0.4 m-0.5 m, and a depth of 0.4 m-0.5 m.

[0016] In some embodiments of the present application, the planting time is controlled from November of each year to April of the following year.

[0017] In some embodiments of the present application, the planting method further comprises: adjusting the number ratio of female plants to male plants to (9-10):1 after 1.8 to 2.2 years of planting the Litsea cubeba.

[0018] In some embodiments of the present application, the planting method further includes: installing a horizontal drip irrigation system to provide water to each litsea cubeba plant, or / and, fertilizing each litsea cubeba plant from February to August each year.

[0019] In some embodiments of the present application, the fertilizer for fertilization is dissolved in water and supplied to each litsea cubeba plant through the horizontal drip irrigation system.

[0020] In some embodiments of the present application, the planting method further comprises the step of pruning the litsea cubeba;

[0021] Optionally, pruning is performed when the tree age of the Litsea cubeba is greater than 2 years, the trunk is higher than 1 meter and there are more than 3 side branches;

[0022] Optionally, prune each year in late winter to early spring;

[0023] Optionally, the frequency of pruning is 1 to 3 times a year;

[0024] Optionally, the pruning is mainly to prune the tree shape of the Litsea cubeba into a happy open-heart tree shape.

[0025] In some embodiments of the present application, the planting site has one or more of the following conditions:

[0026] (1) The planting area is located in a subtropical region;

[0027] (2) The slope of the planting site is less than or equal to 45 degrees;

[0028] (3) The soil thickness of the planting site is greater than or equal to 0.4 meters;

[0029] (4) The soil pH of the planting site is 4.5 to 6.0;

[0030] (5) The altitude of the planting site is below 1,800 meters;

[0031] (6) The relative altitude of the planting site is below 900 meters;

[0032] (7) The planting land is suitable forest land, sparse forest land, low-efficiency and defective forest, forest land without standing trees, felled land or burned land; and,

[0033] (8) The soil of the planting site is yellow loam, red loam or mountain brown loam.

[0034] The details of one or more embodiments of the present application are set forth in the description below, and other features, objects, and advantages of the present application will be apparent from the description and its claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application and to more completely understand the present application and its beneficial effects, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0036] Figure 1 This is a schematic diagram of the "wide rows and narrow plants" planting layout;

[0037] Figure 2 This is the land preparation plan for planting sites with a slope of less than 15 degrees;

[0038] Figure 3 This is the land preparation plan for planting sites with a slope greater than 15 degrees. DETAILED DESCRIPTION

[0039] The present application will be further described in detail below in conjunction with the accompanying drawings, embodiments and examples. It should be understood that these embodiments and examples are only used to illustrate the present application and are not used to limit the scope of the present application. The purpose of providing these embodiments and examples is to make the understanding of the disclosure of the present application more thorough and comprehensive. It should also be understood that the present application can be implemented in many different forms, and is not limited to the embodiments and examples described in the present application. Those skilled in the art can make various changes or modifications without violating the connotation of the present application, and the equivalent form obtained also falls within the protection scope of the present application. In addition, in the description below, a large number of specific details are given in order to provide a more comprehensive understanding of the present application, and it should be understood that the present application can be implemented without one or more of these details.

[0040] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this application and in the specification of this application are only for the purpose of describing the implementation methods and embodiments and are not intended to limit this application.

[0041] the term

[0042] Unless otherwise specified or there is a contradiction, the terms and phrases used in this application have the following meanings:

[0043] The terms "and / or", "or / and", and "and / or" used in this application include any one of two or more related listed items, and also include any and all combinations of related listed items, and the arbitrary and all combinations include any two related listed items, any more related listed items, or a combination of all related listed items. It should be noted that when at least three items are connected by at least two conjunctions selected from "and / or", "or / and", and "and / or", it should be understood that in this application, the technical solution undoubtedly includes technical solutions that are all connected by "logical and", and undoubtedly includes technical solutions that are all connected by "logical or". For example, "A and / or B" includes three parallel solutions of A, B and A+B. For example, the technical solution of "A, and / or, B, and / or, C, and / or, D" includes any one of A, B, C, and D (that is, the technical solution that is all connected by "logical OR"), and also includes any and all combinations of A, B, C, and D, that is, the combination of any two or any three of A, B, C, and D, and also includes the combination of four of A, B, C, and D (that is, the technical solution that is all connected by "logical AND").

[0044] In the present application, "plurality", "multiple", "multiple times", "multiples", etc., unless otherwise specified, refer to a number greater than 2 or equal to 2. For example, "one or more" means one or greater than or equal to two.

[0045] The terms "combination thereof", "any combination thereof", "any combination thereof" and the like used in this application include all suitable combinations of any two or more of the listed items.

[0046] In this application, the "suitable" mentioned in "suitable combination", "suitable method", "any suitable method", etc. is based on the ability to implement the technical solution of this application, solve the technical problems of this application, and achieve the expected technical effects of this application.

[0047] In the present application, "preferred", "better", "more preferred" and "suitable" are only used to describe implementation methods or examples with better effects. It should be understood that they do not constitute limitations on the scope of protection of the present application.

[0048] In the present application, "further", "further", "particularly" and the like are used for descriptive purposes to indicate differences in content, but should not be construed as limiting the scope of protection of the present application.

[0049] In this application, "optionally", "optional", and "optional" mean optional or dispensable, that is, any one of the two parallel schemes of "yes" or "no". If multiple "options" appear in a technical solution, unless otherwise specified and there is no contradiction or mutual restriction, each "optional" is independent.

[0050] In the present application, the terms "first", "second", "third", "fourth", etc. in "the first aspect", "the second aspect", "the third aspect", "the fourth aspect", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or quantity, nor can they be understood as implicitly indicating the importance or quantity of the indicated technical features. Moreover, "first", "second", "third", "fourth", etc. only serve the purpose of non-exhaustive enumeration and description, and it should be understood that they do not constitute a closed limitation on quantity.

[0051] In the present application, the technical features described in an open manner include closed technical solutions composed of the listed features, and also include open technical solutions containing the listed features.

[0052] In the present application, when it comes to numerical intervals (i.e., numerical ranges), unless otherwise specified, the optional numerical distribution is considered continuous within the above numerical interval, and includes the two numerical endpoints (i.e., the minimum value and the maximum value) of the numerical range, and each numerical value between the two numerical endpoints. Unless otherwise specified, when the numerical interval only refers to the integers within the numerical interval, it includes the two endpoint integers of the numerical range, and each integer between the two endpoints. In the present application, it is equivalent to directly listing each integer, such as t is an integer selected from 1 to 10, indicating that t is any integer selected from the group of integers consisting of 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10. In addition, when multiple ranges are provided to describe features or characteristics, these ranges can be combined. In other words, unless otherwise specified, the ranges disclosed in the present application should be understood to include any and all sub-ranges included therein.

[0053] The temperature parameters in this application, unless otherwise specified, are allowed to be either constant temperature treatment or to vary within a certain temperature range. It should be understood that the constant temperature treatment allows the temperature to fluctuate within the accuracy range controlled by the instrument. Fluctuations within the range of ±5°C, ±4°C, ±3°C, ±2°C, and ±1°C are allowed.

[0054] In the present application, % (w / w) and wt% both represent weight percentage, % (v / v) refers to volume percentage, and % (w / v) refers to mass volume percentage.

[0055] All documents mentioned in this application are cited as references in this application, just as each document is cited as reference separately. Unless they conflict with the application purpose and / or technical solution of this application, the cited documents involved in this application are cited with all contents and all purposes. When the cited documents are involved in this application, the definitions of relevant technical features, terms, nouns, phrases, etc. in the cited documents are also cited. When the cited documents are involved in this application, the examples and preferred methods of the cited relevant technical features can also be incorporated into this application as references, but are limited to the implementation of this application. It should be understood that when the cited content conflicts with the description in this application, the present application shall prevail or be modified adaptively according to the description of this application.

[0056] The present application provides a method for planting Litsea cubeba, the planting method comprising the following steps:

[0057] Plant Litsea cubeba on the planting ground according to the preset row spacing and the preset plant spacing;

[0058] The preset row spacing is 4 meters to 6 meters, and the preset plant spacing is 1.8 meters to 2.2 meters;

[0059] If the planting land is a slope:

[0060] The planting method comprises firstly preparing the land using a strip tillage mode, and then planting the litsea cubeba on the prepared planting belt terrace surface according to the preset row spacing and the preset plant spacing;

[0061] The preset line spacing is the projection distance;

[0062] There are reserve strips between adjacent planting strips;

[0063] Under the condition that the slope of the slope is less than or equal to 15 degrees, the terrace width of the planting belt is set to 2 meters to 3 meters (for example, 2, 2.2, 2.4, 2.6, 2.8, 3 meters), and the projection width of the reserved belt is set to 1 meter to 2 meters (for example, 1, 1.2, 1.4, 1.6, 1.8, 2 meters);

[0064] When the slope of the slope is greater than 15 degrees, the terrace width of the planting belt is set to 0.3 meters to 0.5 meters (for example, 0.3, 0.4, 0.5 meters), and the projection width of the reserved belt is set to 3 meters to 4 meters (for example, 3, 3.2, 3.4, 3.6, 3.8, 4 meters).

[0065] In the present application, the preset row spacing is, for example, 4, 4.2, 4.4, 4.6, 4.8, 5, 5.2, 5.4, 5.6, 5.8, and 6 meters, and the preset plant spacing is, for example, 1.8, 1.9, 2, 2.1, and 2.2 meters.

[0066] In this application, the planting site can be a slope or other terrain, such as a flat land. In the case where the planting site is a flat land, the preset row spacing and preset plant spacing in this application are the ground distance. In the case where the planting site is a slope, the preset row spacing and preset plant spacing are the projection distance (that is, the slope projection distance), for example Figure 1 5 meters in the middle right picture.

[0067] Optionally, before land preparation, the planting land is cleaned; further optionally, the cleaning mainly involves removing weeds and / or stones;

[0068] Strip tillage divides sloping farmland into several contour zones.

[0069] It can be understood that in the process of planting Litsea cubeba, based on the setting of the above-mentioned key technical parameters (row spacing, plant spacing, planting belt terrace width, and projection width of the retention belt), the remaining management steps can be carried out according to routine operations. The remaining planting management steps include: the size of the planting holes, the time of planting, the time and ratio of adjusting the ratio of male and female plants, water and nutrient supply, pruning, etc.

[0070] In some examples of the present application, the planting method further includes: laying a transport track on the reserved belt. Laying a monorail transport vehicle on the reserved belt to facilitate the transportation of fresh fruits after picking.

[0071] In some examples of the present application, during the planting process, the dimensions of the planting holes are: cross-sectional length of 0.4 m-0.5 m (for example, 0.4, 0.42, 0.44, 0.46, 0.48, 0.5 m), cross-sectional width of 0.4 m-0.5 m (for example, 0.4, 0.42, 0.44, 0.46, 0.48, 0.5 m), depth of 0.4 m-0.5 m (for example, 0.4, 0.42, 0.44, 0.46, 0.48, 0.5 m).

[0072] In some examples of the present application, the planting time is controlled from November of each year to April of the following year.

[0073] In some examples of the present application, the planting method also includes: adjusting the ratio of the number of female plants to male plants to (9-10):1 (for example, 9:1, 9.2:1, 9.4:1, 9.6:1, 9.8:1, 10:1) after the Litsea cubeba has been planted for 1.8 to 2.2 years (for example, 1.8, 1.9, 2.0, 2.1, 2.2 years).

[0074] In some examples of the present application, the planting method further includes: installing a horizontal drip irrigation system to provide water to each litsea cubeba plant, or / and, fertilizing each litsea cubeba plant from February to August each year;

[0075] Optionally, the fertilizer is dissolved in water and supplied to each litsea cubeba plant through the horizontal drip irrigation system.

[0076] In some examples of the present application, the planting method further includes the step of pruning the litsea cubeba;

[0077] Optionally, pruning is performed when the tree age of the Litsea cubeba is greater than 2 years, the trunk is higher than 1 meter and there are more than 3 side branches;

[0078] Optionally, prune each year in late winter to early spring;

[0079] Optionally, the frequency of pruning is 1 to 3 times a year (e.g., 1, 2, or 3 times);

[0080] Optionally, the pruning is mainly to prune the tree shape of the Litsea cubeba into a happy open-heart tree shape.

[0081] In some examples of the present application, the planting site has one or more of the following conditions:

[0082] (1) The planting area is located in a subtropical region;

[0083] (2) The slope of the planting site is less than or equal to 45 degrees;

[0084] (3) The soil thickness of the planting site is greater than or equal to 0.4 meters;

[0085] (4) The soil pH of the planting site is 4.5 to 6.0;

[0086] (5) The altitude of the planting site is below 1,800 meters;

[0087] (6) The relative altitude of the planting site is below 900 meters;

[0088] (7) The planting land is suitable forest land, sparse forest land, low-efficiency and defective forest, forest land without standing trees, felled land or burned land; and,

[0089] (8) The soil of the planting site is yellow loam, red loam or mountain brown loam.

[0090] The embodiments of the present application will be described in detail below in conjunction with examples. It should be understood that these examples are only used to illustrate the present application and are not intended to limit the scope of the present application. The experimental methods for which specific conditions are not specified in the following examples are preferably referred to the guidance provided in the present application, and can also be based on the experimental manual or normal conditions in this area, can also be based on the conditions recommended by the manufacturer, or refer to experimental methods known in the art.

[0091] In the following specific embodiments, the measured parameters of raw material components may have slight deviations within the range of weighing accuracy unless otherwise specified. For temperature and time parameters, acceptable deviations caused by instrument test accuracy or operation accuracy are allowed.

[0092] Example 1

[0093] 1. Selection of afforestation sites: In Liannan Yao Autonomous County, Qingyuan City, Guangdong Province (112.27°E, 24.68°N), select yellow loam, red loam or mountain brown loam with good drainage and air permeability, with a slope of ≤15°, soil thickness ≥40cm, pH 4.5-6.0, and felled sites with an altitude of less than 1800m and a relative height of less than 900m. The soil organic matter content is 40-60g·kg -1 , total nitrogen content is 1.1-2.0g·kg -1 , total phosphorus content is 0.35-0.40, total potassium is 12.8-16.5g·kg -11 , hydrolyzable nitrogen, available phosphorus, and available potassium are 80-134 mg·kg -1 , 4.8-6.5mg·kg -1 , 35-55 mg kg -1 . .

[0094] 2. Forest land planning: In order to achieve intensive production, the planting of Litsea cubeba is adopted as follows Figure 1 In the layout of "wide rows and narrow plants" shown, the row spacing (projection distance) of the Litsea cubeba trees is set at 5m and the plant spacing is 2m, ensuring that each tree has sufficient growth space to facilitate sunlight, air circulation and mechanized operations.

[0095] 3. Land preparation: Clear the planting plots in advance, mainly remove weeds and stones on the surface. Use strip land preparation. For mountainous areas with a slope of less than or equal to 15°, the planting belt terrace width is 2.5m, and there are reserved belts between the planting belts. The projection width of the reserved belt is 1.5 meters to prevent soil erosion. Figure 2 Ensure that the surface of the planting area is flat to provide a foundation for subsequent planting and irrigation system layout.

[0096] It is understandable that when the slope of the selected planting site is greater than 15°, the parameter design of this step needs to be replaced, that is, Figure 3Change the setting parameters, that is, the terrace width of the planting belt is 0.5m, and the projection width of the reserved belt is 3.5 meters.

[0097] 4. Digging holes: On the leveled planting belt terrace surface, dig planting holes according to the designed plant spacing of 2m. The length and width of the hole are 45cm and the depth is 45cm. Apply appropriate amount of base fertilizer to each hole according to the soil fertility conditions and mix the base fertilizer with the surface soil thoroughly.

[0098] 5. Installation of transport track: A monorail transport system is laid on the reserved belt to facilitate the transportation of fruits after picking. At the same time, it can be combined with mechanized equipment for picking to improve harvesting efficiency and reduce labor costs.

[0099] 6. Planting: Plant on rainy days between November and April. Plant the Litsea cubeba seedlings vertically into the pit, cover the soil to the root neck and compact it.

[0100] 7. Drip irrigation installation: One irrigation pool is set up for every 50 mu of forest land, and the water storage capacity of the irrigation pool is ≥ 60 tons, which is used to supply water to the drip irrigation system. In the planting belt, a drip irrigation system including a fertilizer applicator, filter, control room, etc. is set up for each tree. The drip irrigation pipe is laid along the roots of the tree to ensure that each tree can get a uniform water supply.

[0101] 8. Water regulation: February to August each year is the flowering and fruiting period of Litsea cubeba. Water deficiency will lead to a decrease in fruit setting rate, smaller fruits, and a decrease in the quality of essential oil. Water should be supplemented during continuous drought. Each plant should be watered 2-5 m 3 irrigation volume, and further increase irrigation volume during year-round drought.

[0102] 9. Liquid fertilizer topdressing: With irrigation water as the carrier, the fertilizer is dissolved in the irrigation water and delivered to the root system of Litsea cubeba through the drip irrigation system in multiple times during the sensitive period of nutrient demand from February to August. The amount of fertilizer and the types and proportions of macro, medium and trace elements are determined according to the results of soil and nutrient determination. The precise proportion of liquid fertilizer can achieve the purpose of reducing application and increasing efficiency.

[0103] 10. Male-female ratio: After 2 years of planting, the female Litsea cubeba plants will begin to bear fruit. In June and July, identify the female plants and mark them. In November, the excessive male plants will be grafted or replaced with female plants to adjust the female:male ratio to 9:1.

[0104] 11. Stem shape control

[0105] (1) Pruning age: Pruning should be carried out when the tree is more than 2 years old, the trunk is higher than 1 meter, and there are more than 3-4 healthy side branches;

[0106] (2) Pruning time: The pruning season is from late winter to early spring, after the flower buds of Litsea cubeba are formed and before the flowering period, in order to estimate the yield and avoid pruning branches with high yields. At the same time, pruning should be avoided during the rainy season to reduce disturbance to pollination and reduce the risk of disease transmission.

[0107] (3) Pruning frequency: The pruning frequency is once a year. The pruning method is to prune the tree into a happy open-heart shape. The specific operation is to remove the vertically growing branches, dead branches, and weak branches in the middle of the tree, and mainly retain 2-4 side branches that grow perpendicular to the planting belt and obliquely upward to form a suitable angle to ensure that the light is fully exposed to the inside of each tree.

[0108] 12. Picking: The fruits are picked in July and August. For plots without mechanical picking, manual picking is used to put the fruits into monorail transport vehicles for transportation. For plots with mechanical picking installed, the fruits are harvested with the help of mechanical picking equipment.

[0109] 13. Essential oil extraction: Use water distillation to extract essential oil from green fruit. Put the green fruit into a steaming sieve and place it above boiling water. Add water below the sieve plate into the pot and heat it to make the water in the pot boil continuously to produce a large amount of steam. The steam comes into contact with the raw materials through the steaming sieve to bring out the essential oil in the green fruit. The products are fractionated to obtain layered products. The upper layer is pure dew, and the output of pure dew is the output of essential oil.

[0110] Comparative Example 1

[0111] This comparative example is a comparative example of Example 1, and the only difference with respect to Example 1 is that in step 2, the planting row spacing (projection distance) of the Litsea cubeba trees is set to 3m, and the plant spacing is 3m.

[0112] The comparison results are shown in the following table

[0113] Table 1. Yield comparison

[0114] <![CDATA[Yield of Chinese olive (kg·mu -1 )]]> <![CDATA[Essential oil yield (kg·mu -1 )]]> Example 1 600 30 Comparative Example 1 400 18

[0115] Table 2. Efficiency comparison

[0116] <![CDATA[Management efficiency (person-days·mu -1 ·year -1 )]]> Example 1 6 Comparative Example 1 30

[0117] Comparative Example 2

[0118] This comparative example is a comparative example of Example 1, and the only difference from Example 1 is that in step 3, the width of the terrace of the planting belt is 3.5 m, and a reserved belt is left between the planting belts, and the projected width of the reserved belt is 0.5 m.

[0119] Table 3

[0120]

[0121]

[0122] Comparative Example 3

[0123] This comparative example is a comparative example of Example 1, and the only difference from Example 1 is that in step 3, the terrace width of the planting belt is 0.5 m, and a reserved belt is reserved between the planting belts, and the projected width of the reserved belt is 3.5 meters.

[0124] Table 4

[0125] <![CDATA[Yield of Chinese olive (kg·mu -1 )]]> <![CDATA[Essential oil yield (kg·mu -1 )]]> Example 1 600 30 Comparative Example 3 490 24.0

[0126] Table 5. Efficiency comparison

[0127] <![CDATA[Management efficiency (person-days · mu -1 · year -1 ) <!-- 7 -->]]> Example 1 6 Comparative Example 3 10

[0128] Based on the above data, this embodiment has the following beneficial effects: by optimizing the planting density and trunk shape management, the yield of the Litsea cubeba forest is maximized, while adapting to the requirements of modern mechanical operations. The method is designed with full consideration of the needs of mechanized fertilization and picking, is suitable for mountain operations, can improve operating efficiency, and reduce labor costs.

[0129] On the whole, the embodiments of the present application provide an intensive planting method for Litsea cubeba forest land, which realizes the efficient production of Litsea cubeba forest by reasonable control of planting density, mechanized management, trunk shape control and other measures, while adapting to the mechanized and intelligent management needs.

[0130] The technical features of the above-mentioned implementation modes and examples can be combined in any appropriate manner. To make the description concise, not all possible combinations of the technical features in the above-mentioned implementation modes and examples are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0131] The above-described embodiments only express several implementation methods of the present application, which is convenient for understanding the technical solution of the present application in detail, but it cannot be understood as a limitation on the scope of protection of the patent application. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present application, several deformations and improvements can be made, which all belong to the protection scope of the present application. In addition, it should be understood that after reading the above-mentioned teaching content of the present application, the technicians in this field can make various changes or modifications to the present application, and the equivalent forms obtained also fall within the protection scope of the present application. It should also be understood that the technical solutions obtained by the technicians in this field through logical analysis, reasoning or limited experiments on the basis of the technical solutions provided in the present application are all within the protection scope of the claims attached to the present application. Therefore, the protection scope of the patent of the present application shall be based on the content of the attached claims, and the description and drawings can be used to explain the content of the claims.

Claims

1. A method for planting Litsea cubeba, characterized in that: The planting method comprises the following steps: Plant Litsea cubeba on the planting ground according to the preset row spacing and the preset plant spacing; The preset row spacing is 4 meters to 6 meters, and the preset plant spacing is 1.8 meters to 2.2 meters; If the planting land is a slope: The planting method comprises firstly preparing the land using a strip tillage mode, and then planting the litsea cubeba on the terraced surface of the prepared planting belt according to the preset row spacing and the preset plant spacing; the preset row spacing is the projection distance; There is a reserved zone between adjacent planting zones; Under the condition that the slope of the slope is less than or equal to 15 degrees, the terrace width of the planting belt is set to 2 meters to 3 meters, and the projection width of the reserved belt is set to 1 meter to 2 meters; Under the condition that the slope of the slope is greater than 15 degrees, the width of the terraced surface of the planting belt is set to 0.3 meters to 0.5 meters, and the projection width of the reserved belt is set to 3 meters to 4 meters.

2. The method for planting Litsea cubeba according to claim 1, characterized in that: Before land preparation, the planting land is cleaned; optionally, the cleaning mainly involves removing weeds and / or stones.

3. The planting method of Litsea cubeba according to claim 1, characterized in that: The planting method further comprises: laying a transport track on the reserved belt.

4. The planting method of Litsea cubeba according to claim 1, characterized in that: During the planting process, the dimensions of the planting holes are: cross-sectional length 0.4m-0.5m, cross-sectional width 0.4m-0.5m, and depth 0.4m-0.5m.

5. The method for planting Litsea cubeba according to any one of claims 1 to 4, characterized in that: The planting period is from November to April of the following year.

6. The method for planting Litsea cubeba according to any one of claims 1 to 4, characterized in that: The planting method further comprises: adjusting the number ratio of female plants to male plants to (9-10):1 after the Litsea cubeba has been planted for 1.8-2.2 years.

7. The method for planting Litsea cubeba according to any one of claims 1 to 4, characterized in that: The planting method further comprises: installing a horizontal drip irrigation system to provide water to each litsea cubeba plant, or / and fertilizing each litsea cubeba plant from February to August each year.

8. The method for planting Litsea cubeba according to claim 7, characterized in that: The fertilizer for fertilization is dissolved in the irrigation water of the horizontal drip irrigation system and supplied to each litsea cubeba plant through the horizontal drip irrigation system.

9. The method for planting Litsea cubeba according to any one of claims 1 to 4 and 8, characterized in that: The planting method also includes the step of pruning the litsea cubeba; Optionally, pruning is performed when the tree age of the Litsea cubeba is greater than 2 years, the trunk is higher than 1 meter and there are more than 3 side branches; Optionally, prune each year in late winter to early spring; Optionally, the frequency of pruning is 1 to 3 times a year; Optionally, the pruning is mainly to prune the tree shape of the Litsea cubeba into a happy open-heart tree shape.

10. The method for planting Litsea cubeba according to any one of claims 1 to 4 and 8, characterized in that: The planting site has one or more of the following conditions: (1) The planting area is located in a subtropical region; (2) The slope of the planting site is less than or equal to 45 degrees; (3) The soil thickness of the planting site is greater than or equal to 0.4 meters; (4) The soil pH of the planting site is 4.5-6.0; (5) The altitude of the planting site is below 1,800 meters; (6) The relative altitude of the planting site is below 900 meters; (7) The planting land is suitable forest land, sparse forest land, low-efficiency and defective forest, forest land without standing trees, felled land or burned land; and, (8) The soil of the planting site is yellow loam, red loam or mountain brown loam.

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