Ecological planting method for tea seedling and citrus intercropping

Abstract

The invention provides an ecological planting method for tea seedling and citrus intercropping. The method comprises the following steps: intercropping citrus trees and tea seedlings according to the following distribution state: the distribution state comprises a plurality of citrus tree tea seedling rows and a plurality of tea seedling rows, and the plurality of citrus tree tea seedling rows and the plurality of tea seedling rows are distributed in a staggered manner in a first direction, each citrus tree tea seedling row comprises a plurality of citrus trees and a plurality of tea seedlings which are distributed in the second direction, each tea seedling row comprises a plurality of tea seedling clusters distributed in the second direction, and each tea seedling cluster comprises 2-3 tea seedlings; the first direction and the second direction intersect. The tea seedling and citrus intercropping planting method is beneficial to improving soil conditions and improving the quality and yield of tea and citrus.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural planting, and in particular to an ecological planting method for intercropping tea seedlings and citrus. Background Art

[0002] Citrus fruits are not only nutritious, colorful, fragrant and delicious, but also very suitable for processing into a variety of products such as juice. Due to its high yield and wide market demand, citrus has become one of the most popular fruits among consumers. For fruit farmers, growing citrus can not only bring stable high returns, but also help farmers achieve economic improvement. Tea has a long history in my country. Planting tea can bring stable economic benefits and help farmers improve their living standards.

[0003] In traditional agricultural production, the single crop planting model has disadvantages. This model usually leads to waste of land resources and damage to the ecological environment. Single crop planting is prone to soil nutrient depletion, frequent occurrence of pests and diseases, and reduced ecological diversity. The existence of these problems, structurally speaking, is because single crop planting cannot form a natural ecological balance, and from a process perspective, it is because it ignores the complexity of the agricultural ecosystem. Intercropping provides an effective strategy to solve the above problems. Intercropping is a common agricultural practice of planting two or more crops simultaneously or alternately on the same piece of land. Tea trees prefer a cool and humid environment, while citrus trees need more sunlight. Planting the two together can form a natural shading effect to a certain extent, reducing the impact of high temperature on tea trees. In addition, tea and citrus are both crops with high economic value. Intercropping can disperse risks. Even if one crop has poor returns due to weather or market factors, the other crop may still bring income. However, due to the different effects of tea seedlings and citrus on soil conditions such as soil pH and soil moisture, unreasonable intercropping methods will lead to deterioration of soil conditions, thereby affecting the quality and yield of tea and citrus.

[0004] Therefore, there is an urgent need for an effective intercropping method of tea seedlings and citrus, which is conducive to improving soil conditions and increasing the quality and yield of tea and citrus. Summary of the invention

[0005] The present invention provides an ecological planting method for intercropping tea seedlings and citrus. The use of the planting method can improve soil conditions, thereby facilitating the improvement of the quality of tea and citrus.

[0006] The present invention provides an ecological planting method for intercropping tea seedlings and citrus, comprising the following steps: intercropping citrus trees and tea seedlings according to the following distribution states:

[0007] The distribution state includes a plurality of citrus tree and tea seedling rows and a plurality of tea seedling rows, the plurality of citrus tree and tea seedling rows and the plurality of tea seedling rows are staggered in a first direction, each row of the citrus tree and tea seedling rows includes a plurality of citrus trees and a plurality of tea seedlings distributed along a second direction, each row of the tea seedling rows includes a plurality of tea seedling bushes distributed along the second direction, and each tea seedling bush includes 2 to 3 tea seedlings;

[0008] The first direction and the second direction intersect;

[0009] Wherein, in each row of the tea seedlings, the distance between each two adjacent tea seedlings is L2;

[0010] In each row of citrus tea seedlings, the distance between each adjacent tea seedling is L2, and the distance between each adjacent tea seedling and citrus tree is L2;

[0011] L2 is 0.4~0.6 meters;

[0012] The distance W2 between each of the tea seedling rows and the citrus tree tea seedling row or the tea seedling row closest to the tea seedling row is 1.1-1.5 meters;

[0013] In each row of the citrus trees, the distance L1 between each two adjacent citrus trees is 2.8-3.2 meters;

[0014] The distance W1 between each two adjacent rows of citrus tea seedlings is 3.6-4.5 meters.

[0015] In the ecological planting method of intercropping tea seedlings and citrus as described above, each row of the tea seedlings is located between two adjacent rows of citrus tea seedlings.

[0016] The ecological planting method of intercropping tea seedlings and citrus as described above, wherein the citrus trees and tea seedlings are intercropped, is to intercrop the citrus trees and tea seedlings on a slope with a slope of 0-30° and which is not shielded from sunlight.

[0017] The ecological planting method of intercropping tea seedlings and citrus as described above comprises the following steps: drilling holes to obtain citrus tree holes and tea seedling holes, placing the citrus trees and tea seedlings at the bottom of the holes respectively, and covering the holes.

[0018] The ecological planting method of intercropping tea seedlings and citrus as described above,

[0019] The citrus tree pit has a depth of 80-90 cm and a diameter of 35-45 cm; and / or,

[0020] The depth of the tea seedling pit is 25-35 cm and the diameter is 30-35 cm.

[0021] In the method as described above, the tea seedlings are 8 to 10 years old.

[0022] The method as described above, after the intercropping, also includes fertilizing the seedlings and / or conducting disease and insect pest detection and prevention management.

[0023] In the method as described above, the intercropping time is mid-to-late March or mid-to-late October.

[0024] According to the method described above, within 1 to 12 months of intercropping citrus trees and tea seedlings, the pH of the soil is 4.9 to 6.2; and / or,

[0025] The soil moisture content is 26.82~40.91%; and / or,

[0026] The organic matter content of the soil is 2.31~3.63%.

[0027] The present invention provides an ecological planting method for intercropping tea seedlings and citrus. Reasonable intercropping is carried out by controlling the distance between tea seedlings, tea seedlings and citrus trees, and citrus trees, thereby effectively improving the pH, moisture content and organic matter content of the soil, which is conducive to the production of tea and citrus with high quality and high yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0029] Figure 1 This is a schematic diagram of the ecological planting method for intercropping tea seedlings and citrus provided by the present invention.

[0030] The above drawings have shown clear embodiments of the present invention, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present invention in any way, but to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Citrus and tea are two crops with extremely high economic value. At present, most agricultural planting of the above two crops still adopts a single crop planting model. However, single crop planting is prone to soil nutrient depletion, frequent occurrence of pests and diseases, and reduced ecological diversity. Intercropping citrus trees and tea seedlings provides an effective solution to the above problems. In intercropping, it is necessary to consider the growth habits of citrus trees and tea seedlings and their impact on the soil for reasonable planting, otherwise it will lead to the deterioration of soil conditions and affect the yield and quality of crops.

[0033] Therefore, the key issue in planting citrus trees and tea seedlings is to intercrop them rationally without damaging soil conditions and at the same time achieving good crop yields.

[0034] Based on this, the present invention provides an ecological planting method for intercropping tea seedlings and citrus fruits, such as Figure 1 As shown, the method comprises the following steps: intercropping citrus trees and tea seedlings according to the following distribution state:

[0035] The above distribution state includes a plurality of citrus tree tea seedling rows and a plurality of tea seedling rows, the plurality of citrus tree tea seedling rows and the plurality of tea seedling rows are staggered in the first direction, each row of citrus tree tea seedling rows includes a plurality of citrus trees distributed along the second direction, each row of tea seedling rows includes a plurality of tea seedling bushes distributed along the second direction, and each tea seedling bush includes 2 to 3 tea seedlings;

[0036] The first direction intersects the second direction;

[0037] Among them, in each row of tea seedlings, the distance between each two adjacent tea seedlings is L2;

[0038] In each row of citrus tea seedlings, the distance between each adjacent tea seedling is L2, and the distance between each adjacent tea seedling and citrus tree is L2;

[0039] L2 is 0.4~0.6 meters;

[0040] The distance W2 between each tea seedling row and the citrus tree tea seedling row or tea seedling row closest to the tea seedling row is 1.1-1.5 meters;

[0041] In each citrus row, the distance L1 between each two adjacent citrus trees is 2.8-3.2 meters;

[0042] The distance W1 between each two adjacent rows of citrus tea seedlings is 3.6~4.5 meters.

[0043] It should be made clear that before intercropping, the planting site must be deep plowed and prepared. The depth of deep plowing is 30-40 cm. A deep plow or rotary tiller equipped with a tractor can be used for deep cultivation to ensure that the soil is evenly turned and there are no large lumps of soil to improve the soil structure. When preparing the soil, weeds, stubble and stones need to be removed to avoid affecting crop growth.

[0044] In addition, a complete drainage system needs to be established to ensure that excess water can be quickly drained away. Open ditches, concealed pipes or drainage channels can be set up, and the appropriate drainage method can be selected according to the terrain and soil type to ensure that the soil has appropriate moisture.

[0045] In order to make it suitable for crop growth, it is also possible to increase the soil organic matter content by applying organic fertilizers (such as compost, manure, green manure, etc.) and adjust the soil pH by applying lime or sulfur to ensure that the soil is fertile and suitable for the growth of target crops.

[0046] As in the above distribution state, the first direction and the second direction intersect at a certain angle. Specifically, the first direction and the second direction may be perpendicular.

[0047] In each row of tea seedlings, the distance between each two adjacent tea seedlings in the second direction is L2;

[0048] Each citrus tree and tea seedling row includes a plurality of citrus trees and tea seedlings, so that a citrus tree may be adjacent to a tea seedling, and a tea seedling may be adjacent to a tea seedling, wherein the spacing between each adjacent two tea seedlings in the second direction is L2, and the spacing between each adjacent tea seedling and citrus tree in the second direction is L2;

[0049] L2 is 0.4-0.6 meters; for example, the distance L2 includes but is not limited to 0.4 meters, 0.5 meters, 0.6 meters or a range consisting of any two of them.

[0050] The present invention can effectively improve soil conditions, such as pH, moisture, organic matter, etc., by reasonably controlling the distance between tea bushes and tea seedlings, and between tea seedlings and citrus trees, thereby creating suitable conditions for the growth of tea seedlings and citrus trees.

[0051] The inventors have found through research that when W2 is 1.3 meters and L2 is 0.4~0.5 meters, the pH of the soil is between 5.3~5.7, which can meet the acidity requirements of tea trees and is also suitable for the growth of citrus trees.

[0052] In another specific embodiment, when W2 is 1.1-1.3 meters and L2 is 0.4 meters, the moisture content of the soil increases significantly.

[0053] In another specific embodiment, when W2 is 1.3 meters to 1.5 meters and L2 is 0.4 meters, the soil organic matter content is significantly increased.

[0054] Furthermore, the present invention further promotes the growth of tea seedlings and improves soil conditions by controlling the number of tea seedlings in each clump to 2 to 3 plants.

[0055] The spacing W2 between each tea seedling row and the citrus tea seedling row or tea seedling row closest to the tea seedling row is 1.1 to 1.5 meters. Specifically, W2 in the present invention is the spacing between each tea seedling row and the citrus tea seedling row or tea seedling row closest to the tea seedling row in the first direction. The present invention can ensure sufficient ventilation conditions and provide a sunshade effect for the growth of tea seedlings by arranging a reasonable spacing between tea seedling rows and citrus tea seedling rows, and between tea seedling rows, so as to create a suitable cool and moist environment for the tea seedlings, which is beneficial to improving the quality of tea.

[0056] Based on the characteristics of citrus crops, which are tall, have large leaf curtains, and like light, the present invention sets the spacing L1 between each two adjacent rows of citrus trees and tea seedlings in the second direction to be 2.8 to 3.2 meters; the spacing W1 between each two adjacent rows of citrus trees and tea seedlings in the first direction is 3.6 to 4.5 meters. By arranging the citrus trees in the above manner, the present invention provides sufficient growth space for the growth of different citrus trees to ensure that the citrus trees can receive sufficient light, and is conducive to the roots of the citrus trees to fully penetrate the soil to better absorb water and nutrients, thereby helping to improve the quality of citrus crops. Preferably, when the planting spacing L1 of the citrus trees is 3 meters and W1 is 4 meters, both the citrus trees and the tea seedlings have a better growth state.

[0057] The present invention adopts the above-mentioned distribution state to intercrop tea seedlings and citrus trees, thereby effectively improving soil conditions, so that both tea seedlings and citrus trees have a more suitable growth environment, which is beneficial to improving the yield and quality of the above two crops.

[0058] As mentioned above, each row of tea seedlings is located between two adjacent rows of citrus trees. In detail, the tea seedling row is basically located in the middle of two adjacent citrus trees, that is, the spacing between the citrus tree tea seedling rows on both sides is basically equal. By arranging the tea seedling row between the citrus tree tea seedling rows, a cool and ventilated environment can be created for the tea seedlings, which is conducive to the growth of the tea seedlings.

[0059] It should be clear that in the present invention, citrus trees and tea seedlings are intercropped, that is, citrus trees and tea seedlings are intercropped on a slope with a slope of 0 to 30 degrees and not shielded from sunlight. The inventor has found through research that on the slope at the above angle, the root systems of tea seedlings and citrus trees can fix the soil, reduce soil erosion caused by rain erosion, and protect the ecological environment. In addition, the above intercropping method needs to be planted at a certain altitude. The present invention does not specifically limit the altitude. For example, it can be planted on a slope with an altitude of 99 meters. Intercropping citrus trees and tea seedlings at the above altitude can provide a mild climate and suitable humidity, which is conducive to the growth of citrus trees and tea seedlings.

[0060] As described above, intercropping includes drilling holes to obtain citrus tree holes and tea seedling holes, placing citrus trees and tea seedlings at the bottom of the holes, and covering the holes. According to the different root depths of citrus trees and tea seedlings, the present invention further divides the holes obtained by drilling into citrus tree holes and tea seedling holes during the drilling process to meet the needs of the two crops for root expansion and rooting.

[0061] In detail, the present invention sets the citrus tree pit with a depth of 80-90 cm and a diameter of 35-45 cm.

[0062] In another specific embodiment, the tea seedling pit has a depth of 25-35 cm and a diameter of 30-35 cm.

[0063] It should be clarified that the distances represented by the above L1, L2, W1, and W2 are the minimum distances from the edge of each pothole to the edge of another pothole.

[0064] Specifically, L1 is the minimum distance in the second direction from the edge of a pit of one citrus tree to the edge of another pit of two adjacent citrus trees in each citrus tree seedling row;

[0065] In each row of tea seedlings, if two tea seedlings are adjacent, L2 is the minimum distance in the second direction from the edge of one tea seedling hole to the edge of another tea seedling hole in each adjacent tea seedling cluster; if a tea seedling is adjacent to a citrus tree, L2 is the minimum distance in the second direction from the edge of a tea seedling hole to the edge of a citrus tree hole;

[0066] W1 is the minimum distance between the edge of the pit of the citrus trees in one row and the edge of the pit of the citrus trees in the other row in each of two adjacent rows of citrus tea seedlings;

[0067] If the rows of tea seedlings are adjacent to each other, W2 is the minimum distance between the edge of the pits in one row and the edge of the pits in another row in each row of tea seedlings and the row of tea seedlings closest to it;

[0068] If the tea seedling row is adjacent to the citrus tea seedling row, W2 is the minimum distance between the edge of the tea seedling pit in each tea seedling row and the edge of the tea seedling pit in the citrus tea seedling row closest to the tea seedling row.

[0069] The present invention further limits the depth and diameter of the pits for citrus trees and tea seedlings, thereby providing sufficient growth space for the roots of the two crops and promoting the expansion and rooting of the roots. In addition, the appropriate size of the pits can improve the water retention capacity of the soil, reduce water evaporation, and avoid water accumulation, thus creating a more suitable growth environment for the crops.

[0070] In addition, the present invention selects 8-10 year old tea seedlings and citrus trees with similar growth cycles for intercropping, because the root system of 8-10 year old tea seedlings is relatively developed, and can penetrate into the soil, absorb more water and nutrients, improve the stress resistance and growth stability of tea trees, and the survival rate of tea seedlings is high after intercropping. Citrus trees with similar growth cycles refer to those citrus trees that are similar in growth rate, development stage, physiological characteristics, etc. The present invention selects citrus trees with similar growth cycles for intercropping, and fertilization can be carried out at the same time, and fruit management and harvesting can be concentrated, simplifying the management process and reducing labor costs.

[0071] When tea seedlings and citrus trees are intercropped, the present invention also performs measures including fertilization, pest and disease detection, and pest and disease control management on the seedlings.

[0072] In detail, at various stages of crop growth, such as the growing period, flowering period, and fruiting period, fertilizers including quick-acting fertilizers (such as urea, potassium dihydrogen phosphate), foliar fertilizers, and trace elements required by crops such as iron, zinc, and boron can be used for fertilization by soil fertilization or foliar spraying.

[0073] In addition, the present invention also regularly checks the growth of crops, uses yellow boards, blue boards, sex attractants and other traps to monitor the number and type of pests, and observes whether there are signs of pests and diseases.

[0074] Among the pest control management measures, biological control and chemical control measures can be used for pest control management.

[0075] The present invention ensures the healthy growth of crops and improves the yield and quality by adopting the above measures.

[0076] In order to obtain the best crop yield, the time of the intermediate cropping of the present invention is mid-to-late March or mid-to-late October. Mid-to-late March and mid-to-late October are both growing seasons for tea seedlings and citrus trees. During these two time periods, the growth cycles of tea seedlings and citrus trees are relatively consistent. The climatic conditions during these two time periods are conducive to the rapid survival and growth of tea seedlings and citrus trees, reducing the management pressure in the early growth period and also conducive to synchronous management. In addition, during these two time periods, the rainfall is moderate and the soil moisture is suitable, so natural precipitation can be more effectively utilized, the irrigation cost can be reduced, and higher economic benefits can be brought.

[0077] During the 1 to 12 months of the intercropping mentioned above, the present invention rationally plants tea seedlings and citrus trees so that the pH of the soil is 4.9 to 6.2. The pH within the above range can meet the acidic requirements of tea trees and is also suitable for the growth of citrus trees.

[0078] In another specific embodiment, during 1 to 12 months of intercropping as described above, the soil moisture content is 26.82-40.91%, which effectively increases the soil moisture content compared to monocropping. The soil moisture content within the above range can provide a more ideal growth environment, ensuring that tea seedlings and citrus trees can obtain sufficient water while avoiding root problems caused by excessive moisture.

[0079] In another specific embodiment, within 1 to 12 months of intercropping as described above, the organic matter content of the soil is 2.31 to 3.63%. The organic matter content within the above range can provide an ideal growth environment for tea seedlings and citrus trees, improve soil structure, increase soil water retention capacity and fertility, promote soil microbial activity, reduce the occurrence of diseases and pests, and increase crop yield and quality, while bringing multiple ecological and management benefits.

[0080] The technical solution of the present invention is further described below in conjunction with specific embodiments.

[0081] Example 1

[0082] The ecological planting method of intercropping tea seedlings and citrus provided in this embodiment comprises the following steps:

[0083] 1) Select tea trees with a growth cycle of 8 years for intercropping.

[0084] 2) Select a slope with an altitude of 99 meters and a slope of 30° that is not blocked by high mountains for intercropping. Deeply cultivate and tidy up the planting land so that the organic matter content of the soil is 2.49%, the water content is 29.68%, and the pH is 5.6.

[0085] 3) Planting citrus trees in mid-to-late March. The intercropping process includes drilling holes for citrus trees and tea seedlings, placing citrus trees and tea seedlings at the bottom of the holes and covering the holes;

[0086] Among them, the depth of the citrus tree pit is 90 cm and the diameter is 40 cm;

[0087] The depth of the tea seedling pit is 30 cm and the diameter is 30 cm;

[0088] The citrus tree tea seedling row and the multiple tea seedling rows are staggered in the first direction, each of the citrus tree tea seedling rows includes multiple citrus trees distributed in the second direction, each of the tea seedling rows includes multiple tea seedling bushes distributed in the second direction, and each of the tea seedling bushes includes multiple tea seedlings distributed in the second direction;

[0089] The first direction is perpendicular to the second direction;

[0090] In each row of tea seedlings, the distance L2 between each adjacent tea seedling cluster is 0.4 meters;

[0091] Each tea seedling includes 2 tea seedlings;

[0092] In each row of citrus tea seedlings, the distance between each adjacent tea seedling is L2, which is 0.4 meters, and the distance between each adjacent tea seedling and citrus tree is L2, which is 0.4 meters;

[0093] The distance W2 between each tea seedling row and the citrus tea seedling row closest to the tea seedling row is 1.3 meters;

[0094] The distance W2 between each adjacent row of tea seedlings is 1.3 meters;

[0095] In each row of citrus trees, the distance L1 between each two adjacent citrus trees is 3 meters;

[0096] The distance W1 between each two adjacent rows of citrus tea seedlings is 4 meters.

[0097] 4) Biofertilizer and organic fertilizer are used for fertilization, and the fertilization method is automatic fertilization by integrated water and fertilizer equipment. Pest and disease detection is carried out using the insect detection instrument in the park, and the main pest control method is color plate.

[0098] Example 2

[0099] This embodiment is basically the same as Embodiment 1, except that L2 is 0.5 meters.

[0100] Example 3

[0101] This embodiment is basically the same as Embodiment 1, except that L2 is 0.6 meters.

[0102] Example 4

[0103] This embodiment is basically the same as the embodiment 1, except that W2 is 1.3 meters.

[0104] Example 5

[0105] This embodiment is basically the same as Embodiment 4, except that L2 is 0.5 meters.

[0106] Example 6

[0107] This embodiment is basically the same as Embodiment 4, except that L2 is 0.6 meters.

[0108] Example 7

[0109] This embodiment is basically the same as Embodiment 1, except that W2 is 1.5 meters.

[0110] Example 8

[0111] This embodiment is basically the same as Embodiment 7, except that L2 is 0.5 meters.

[0112] Example 9

[0113] This embodiment is basically the same as Embodiment 7, except that L2 is 0.6 meters.

[0114] Comparative Example

[0115] The difference between this comparative example and Example 1 is that only citrus trees are used for monocropping, and the other planting conditions are the same as those in Example 1.

[0116] Test example

[0117] The soils of Examples 1-9 and the comparative example were sampled 1 month, 6 months, and 12 months after planting.

[0118] The soil pH meter was used to test the soil acidity and alkalinity. The experimental results are shown in Table 1.

[0119] The soil moisture content was tested using NY-T1121.4-2006. The experimental results are shown in Table 2.

[0120] GB9834-88 was used to test the soil organic matter content. The experimental results are shown in Table 3.

[0121] Table 1

[0122]

[0123] Table 2

[0124]

[0125] Table 3

[0126]

[0127] It can be seen from the table that the ecological planting method of intercropping tea seedlings and citrus provided by the present invention can effectively adjust the pH of the soil, increase the soil moisture content and organic matter, and thus is conducive to harvesting tea seedlings and citrus trees with higher yield and better quality.

[0128] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An ecological planting method for intercropping tea seedlings and citrus, characterized in that: The method comprises the following steps: intercropping citrus trees and tea seedlings according to the following distribution: The distribution state includes a plurality of citrus tree and tea seedling rows and a plurality of tea seedling rows, the plurality of citrus tree and tea seedling rows and the plurality of tea seedling rows are staggered in a first direction, each row of the citrus tree and tea seedling rows includes a plurality of citrus trees and a plurality of tea seedlings distributed along a second direction, each row of the tea seedling rows includes a plurality of tea seedling bushes distributed along the second direction, and each tea seedling bush includes 2 to 3 tea seedlings; The first direction and the second direction intersect; Wherein, in each row of the tea seedlings, the distance between each two adjacent tea seedlings is L2; In each row of citrus tea seedlings, the distance between each adjacent tea seedling is L2, and the distance between each adjacent tea seedling and citrus tree is L2; L2 is 0.4~0.6 meters; The distance W2 between each of the tea seedling rows and the citrus tree tea seedling row or the tea seedling row closest to the tea seedling row is 1.1-1.5 meters; In each row of the citrus trees, the distance L1 between each two adjacent citrus trees is 2.8-3.2 meters; The distance W1 between each two adjacent rows of citrus tea seedlings is 3.6-4.5 meters.

2. The ecological planting method of intercropping tea seedlings and citrus according to claim 1, characterized in that: Each row of the tea seedlings is located between two adjacent rows of the citrus tea seedlings.

3. The ecological planting method of intercropping tea seedlings and citrus according to claim 1 or 2, characterized in that: The intercropping of citrus trees and tea seedlings is to intercrop the citrus trees and tea seedlings on a slope with a slope of 0-30° and which is not shielded from sunlight.

4. The ecological planting method of intercropping tea seedlings and citrus according to any one of claims 1 to 3, characterized in that: The intercropping process includes drilling holes to obtain citrus tree holes and tea seedling holes, placing the citrus trees and tea seedlings at the bottom of the holes respectively and covering the holes.

5. The ecological planting method of intercropping tea seedlings and citrus according to any one of claims 1 to 4, characterized in that: The citrus tree pit has a depth of 80-90 cm and a diameter of 35-45 cm; and / or, The depth of the tea seedling pit is 25-35 cm and the diameter is 30-35 cm.

6. The method according to any one of claims 1 to 5, characterized in that: The tea seedlings are 8 to 10 years old.

7. The method according to any one of claims 1 to 6, characterized in that: After the intercropping, the seedlings are fertilized and / or tested for and controlled by pests and diseases.

8. The method according to any one of claims 1 to 7, characterized in that: The intercropping time is mid to late March or mid to late October.

9. The method according to any one of claims 1 to 8, characterized in that: The pH of the soil is 4.9-6.2 within 1-12 months of intercropping citrus trees and tea seedlings; and / or The soil moisture content is 26.82~40.91%; and / or, The organic matter content of the soil is 2.31~3.63%.

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