Method for ecologically controlling weeds in tea garden in Dabie mountain tea area

Abstract

The invention belongs to the technical field of agriculture, and relates to a method for ecologically controlling weeds in a tea garden in a Dabie mountain tea district, a benign ground cover cultivation method is adopted for control, benign ground covers are sown in a mixed mode after weeding is conducted in the tea garden, and the benign ground covers comprise Indian strawberry, creeping oxalis, herba violae, potentilla chinensis, veronica erecta, Euler and sakura. The method provided by the invention not only can realize ecological weed control, but also can improve the number of bud heads, dry weight of the bud heads and leaf area, thereby improving the quality and yield of tea leaves.

Description

Technical Field

[0001] The invention belongs to the field of agricultural technology and relates to a method for ecologically controlling weeds in tea gardens in the Dabie Mountain tea region. Background Art

[0002] As an important economic crop in my country, the improvement of tea yield and quality is directly affected by tea garden weed management. In the tea garden environment, weeds compete with tea trees for resources such as light, water, and soil nutrients, which seriously affects the growth and development of tea trees and the benefits of tea production. Some types of weeds may even contain toxic components, posing a threat to the safety of humans and animals. In order to control weeds in tea gardens, it is not possible to simply remove them completely, because doing so will not only consume a lot of manpower and material costs and increase planting investment, but may also cause the soil structure of the tea garden to be damaged, reduce the soil's air permeability and water permeability, and thus affect the root development and nutrient absorption of tea trees. Given that the tea garden is an open and complex ecosystem, weeds, as an important part of the ecosystem, also play a certain role in maintaining biodiversity and ecological balance. Therefore, scientific and reasonable survey methods should be used to clarify the species distribution and population dominance of weeds in tea gardens, and then formulate targeted comprehensive prevention and control strategies, including the selection of appropriate physical weed control, biological weed control, and the reasonable application of low-toxic and environmentally friendly chemical herbicides when necessary, so as to effectively control the harm of weeds while maintaining the stability and sustainability of the tea garden ecosystem. This can ensure the efficient production of tea, take into account the protection of the ecological environment, and realize the ecological management of tea gardens and maximize the economic benefits.

[0003] In the tea gardens of Jinzhai tea area, the occurrence of weeds has a certain impact on the growth and yield of tea. Therefore, it is very important to systematically evaluate and analyze the occurrence patterns of weeds and the ecological control effect of weeds. The purpose of this study is to investigate and identify the weed characteristics of tea gardens in Jinzhai tea area and Dabie Mountain Experimental Station tea gardens. In the tea gardens of Dabie Mountain Experimental Station, seven treatments were set up: retaining good vegetation, mixed migration after weeding, mixed sowing after weeding, rat grass, glyphosate, negative control (full weeding) and blank control (no weeding). By using comparative tests, combined with weed control effects and control efficiency indicators in different seasons, the best ecological weed control measures were screened. A more detailed study was also conducted on the screening of benign vegetation. Summary of the invention

[0004] A method for ecologically controlling weeds in tea gardens in the Dabie Mountain tea region adopts a benign ground cover cultivation method for control, and after weeding in the tea garden, benign ground covers are mixed and sown, wherein the benign ground covers include Duchesnea indica, Oxalis oxalis, Viola yedoensis, Potentilla rubra, Veronica erecta, Dianthus chinensis and Moss cherry blossom.

[0005] Preferably, the mixed sowing time is September, and the sowing amount is calculated as 8-15 seeds per square centimeter.

[0006] The method provided by the present invention is used to increase the number of bud heads, the dry weight of bud heads, and the leaf area.

[0007] The method provided by the present invention is used to increase the tea yield.

[0008] The method provided by the present invention is used to improve the quality of tea.

[0009] Compared with the prior art, the beneficial technical effects achieved by the present invention

[0010] Provide a scientific basis for ecological weed control, green prevention and control of tea garden weeds, and the alternative use of chemical herbicides; provide theoretical and practical bases for the cultivation management of local tea gardens and the high-quality and efficient production of tea. At the same time, explore the effects of different prevention and control measures on the yield and quality of tea, screen out prevention and control measures with better weed control effects and yield increase effects, and provide a basis for the feasibility of different prevention and control measures in tea garden applications.

[0011] The method provided by the present invention can not only achieve ecological weed control, but also increase the number of bud heads, the dry weight of bud heads, and the leaf area, thereby improving the quality and yield of tea. Brief Description of the Drawings

[0012] Figure 1 Technical Route Map

[0013] Figure 2 Treatment Plot

[0014] Detailed Description of the Specific Embodiments

[0015] According to the following embodiments, the present invention can be better understood. However, those skilled in the art can easily understand that the content described in the embodiments is only used to illustrate the present invention, and should not and will not limit the present invention described in detail in the claims.

[0016] Example 1: Method for Ecologically Controlling Weed Damage in Tea Gardens in the Dabie Mountain Tea Region (Method for Cultivating Benign Ground Covers)

[0017] See the specific research technical route map in Figure 1

[0018] 1. To understand the characteristics of weed occurrence in Jinzhai tea gardens, this investigation adopted the method of walking inspection. From 2023 to 2024, 18 tea gardens in Jinzhai and the tea garden of the Dabie Mountain Experimental Station were investigated to make a weed list and calculate the weed occurrence frequency. To confirm the malignant weeds in the tea garden of the Dabie Mountain Experimental Station, through the occurrence frequency, coverage, and density of weeds in 18 tea gardens in Jinzhai and the tea garden of the Dabie Mountain Experimental Station, the types of malignant weeds in the tea garden of the Dabie Mountain Experimental Station were confirmed.

[0019] 2. Conduct pre-experiments related to the test and select the benign vegetation.

[0020] 3. Design an ecological weed control effect screening experiment, and design 7 experimental treatments: Liuliang, mixed seeding after weeding, mixed transplanting after weeding, glyphosate, mouse fescue, blank control (no weeding), and negative control (complete weeding), and divide the experimental plots. Select beneficial vegetation according to the standard of beneficial vegetation, and record the spring coverage, density, plant height, and root length of the beneficial vegetation and make a list of beneficial vegetation according to the ground cover cultivation effect.

[0021] 4. Screen out green and efficient ecological prevention and control measures through the weed control effect and the tea yield increase effect.

[0022] I. Materials and Methods

[0023] Investigation Location and Time

[0024] The investigation site of Jinzhai Tea Garden (mid-altitude tea garden) is located in Jinzhai County, Lu'an City, Anhui Province, in the hinterland of the Dabie Mountains. The average altitude of Jinzhai County is 500m, and the latitude and longitude are between 31°06′ and 31°48′ north latitude, and between 115°22′ and 116°11′ east longitude, with a total area of 3814m 2 .

[0025] Weed control effect test site: Dabie Mountain Experimental Station, the average altitude of Xiaonanjing Village, Jinzhai County is 500m, the central latitude and longitude are 31°78′ north latitude and 115°91′ east longitude, with a total area of 6380m 2 .

[0026] Investigation time and test time: The investigation time of tea garden weed species is from spring 2023 to spring 2024. The time of the ecological weed control effect screening experiment is from March 2023 to April 2024.

[0027] Determination of tea garden investigation sample points in Jinzhai tea area: Select representative and large-area tea gardens as investigation sample points and randomly determine the investigation routes. Weed investigation: Adopt the method of walking inspection, investigate the tea garden along the route, investigate the weed species and their growth conditions in the tea garden in a certain order, and record.

[0028] Experimental Materials

[0029] The selected ground cover materials include those collected in the wild (11 species): Potentilla fragarioides, Duchesnea indica, Oxalis corniculata, Viola philippica, Glechoma longituba, Sedum sarmentosum, Sedum lineare, Cardamine hirsuta, Melastoma dodecandrum, Veronica arvensis, and Mollugo stricta. Field management was carried out according to self-propagation in the following year: Purchased from the market (13 species) in total, 13 species, Dianthus plumarius, Lupinus micranthus (lupin), Potentilla fragarioides, Chrysanthemum coronarium, Medicago sativa, Aubrieta deltoidea, Phlox subulata, Sedum lineare, Sedum sarmentosum, Melastoma dodecandrum, Viola philippica, Duchesnea indica, and Veronica arvensis.

[0030] Seed collection locations for mixed sowing treatment: Changling Village, Taoling Township; Four Seasons Spring Tea Garden; Longtan Village, Taoling Township; Maoyan Rock Ecological Agriculture Co., Ltd.; Jinzhai County Shibazi Tea Garden; Green Agricultural Technology Promotion Demonstration Site, Qianying Village, Jinzhai County; Shangzhuyuan, Qianying Village; Datuan Mountain, Quanjun Township; Madian Village, Meishan Town; Guihuacun Ecological Tea Factory; Lu'an Tea Valley Scenic Area; Zhutang Township; Zhouyuan Village; Chenchong, Qingshan Town; Yuanchong Village; and Xiaonanjing Village.

[0031] Seed purchase channels for mixed sowing treatment: Taobao stores "Hezhiyuan Seed Industry", "Guide to Medicinal Plant Cultivation Network", "Litian Agriculture", and "Ancient City Post Station Flagship Store".

[0032] Preliminary test

[0033] Evaluation of malignant weeds in tea gardens

[0034] Confirmation of malignant weeds: Through the investigation of weeds in tea gardens in Jinzhai tea area and tea gardens of the Dabie Mountain Experimental Station from 2023 to 2024, the top 50 weeds with the highest occurrence frequency in tea gardens were selected. The four malignant index factors of weed occurrence frequency, vegetation type, plant height, and adult plant season were divided into 4 levels. By calculating the malignant index, the top 20 tea garden weeds with the largest numerical values were designated as malignant weeds.

[0035] Classification of occurrence frequency: The occurrence frequency of level 1 weeds is 50%-60%, that of level 2 is 60%-70%, that of level 3 is 70%-80%, and that of level 4 is 80%-100%. Malignant index: According to the malignant index factors, the weighted method is used for calculation. The calculation formula is as follows:

[0036] Malignant index = 0.2 × occurrence frequency level + 0.35 × vegetation type + 0.3 × plant height + 0.15 × adult plant season

[0037] Malignant grade: Rated according to the size of the malignant index.

[0038] Ecological weed control effect screening test for tea garden grass damage

[0039] Test layout

[0040] The test tea plants are oolong tea with a tree age of 3 years. The tea plants have not closed rows, and the growth of the tea plants is consistent.

[0041] Plot division method: Evenly divided into 30 plots, each plot is 6m long × 2m wide.

[0042] Plot Arrangement: The plots with remaining weeds are numbered 1, 2, and 3. After weeding, the plots with transplanted mixed plants are numbered 4, 5, and 6. After weeding, the plots with mixed seeding are numbered 7, 8, and 9. The plots with suppressing weeds by sowing fescue are numbered 10, 11, 12, 13, 14, and 15. The herbicide control (glyphosate) plots are numbered 16, 17, 18, 19, 20, and 21. The blank control (no weeding) plots are numbered 22, 23, 24, 25, 26, and 27. The negative control (total weeding) plots are numbered 28, 29, and 30. ( Figure 2 )

[0043] Treatment 1: Remaining weeds (removing malignant weeds). By calculating the comprehensive weed damage index, the 5 species of tea garden weeds with the largest values are defined as malignant weeds and confirmed.

[0044] Treatment 2: Transplanting mixed plants after weeding. Select suitable tools such as shovels to control native low-growing mixed vegetation such as Artemisia lavandulaefolia and Oxalis corniculata, and then transplant them to the treatment plots from March to September.

[0045] Treatment 3: Mixed seeding after weeding. Purchase good ground cover seeds from Taobao or online shopping platforms (the selection criteria for good vegetation are detailed below, and the list of selected good vegetation is shown in the table). Sowing time: September. Calculation of sowing rate: 12 seeds per square centimeter, and 2100 seeds are needed for each plot.

[0046] Treatment 4: Sowing fescue, purchased from Yongji Fuqiao Fescue Planting Co., Ltd., planted between rows, with a planting density of 1.5 kg / 667㎡. The suitable sowing time is from August to September.

[0047] Treatment 5: Herbicide treatment. Glyphosate formula: Mix 250 g of 10% glyphosate commercial product and 5 g of washing powder in 10 kg of clear water and shake well.

[0048] Treatment 6: Blank control, no weeding.

[0049] Treatment 7: Negative control, total weeding of weeds.

[0050] Management method of experimental plots: All plots are enclosed with colored steel wires to prevent damage by surrounding farmers, and a sign is inserted in each plot, with each sign corresponding to each treatment. Weed treatment method for experimental treatment plots: During the autumn measurement of plot biomass, dig a pit about 1 m deep at the front and end of each plot with a shovel, bury all the pulled weeds, and cover them with baking powder. Then dig them out again during the spring for spreading in the treatment plots for soil return treatment.

[0051] Table 1 Content Table of Screening Experiment on Ecological Weed Suppression and Control Effects in Tea Gardens at Dabieshan Experimental Station

[0052]

[0053]

[0054] Selection criteria for beneficial vegetation in mixed sowing treatment:

[0055] 1. Having seasonal diversity (biological characteristics table of ground cover plant materials) to maintain ground cover; being low (not exceeding 350 mm), 30 - 50% lower than the height of tea trees;

[0056] 2. Having shallow roots.

[0057] 3. Having low fertilizer absorption.

[0058] 4. Being non-toxic, non-toxic to humans and livestock, including direct toxicity, photosensitivity, and PA plants. Having no antagonistic effect on tea trees.

[0059] 5. Being non-quarantine plants; other factors such as cold tolerance, heat tolerance, and life history should be comprehensively considered.

[0060] Determination of density, plant height, biomass, and coverage of beneficial vegetation

[0061] Determination method: quadrat method. In the mixed sowing treatment plot of the tea garden at the Dabie Mountain Experimental Station, select the area with a large occurrence volume and a large number of occurrence species as the quadrat, which is determined by on-site visual inspection. The quadrat area is 1 m * 1 m. According to the size of the treatment plot and the growth potential of beneficial vegetation, the number of quadrats is generally 3 - 5. By observing the distribution of the main beneficial vegetation in the quadrat, the coverage of beneficial vegetation is determined by visual inspection, and the distance between the beneficial vegetation in the quadrat and the ground is measured with a tape measure to obtain the plant height of beneficial vegetation. Cut the beneficial vegetation in the quadrat with a sickle and weigh the weight of the weeds with a platform scale to obtain the biomass.

[0062] Quadrat information entry: Make a quadrat information record form, and the recorded content includes quadrat name, time, location, coverage of beneficial vegetation in the quadrat, weight of weeds, plant height of weeds, and density of weeds.

[0063] Beneficial vegetation density (D) = the number of plants of a certain or all weeds per unit area. In this article, it is the number of plants per square meter.

[0064] Table 2 Biological characteristics table of ground cover plant materials

[0065]

[0066]

[0067] Determination of weed control index and control effect index

[0068] Weed control index and control effect calculation

[0069] (1) Determination seasons: March, July, November.

[0070] (2) Weed inhibition index: biomass inhibition rate, weed density.

[0071] (3) Calculation formula:

[0072]

[0073] (4) Index determination methods: sampling method and actual measurement method.

[0074] (5) Sample plot biomass determination: Three sample plots were randomly selected from each plot, and the fresh weight of all above-ground and underground biomass of weeds in the sample plots was weighed, and the names of the sample plots were recorded.

[0075]

[0076] Control effectiveness index and calculation

[0077] One bud, two leaves and hundred bud weight: The determination method is that when the number of one bud and two leaves sprouted in spring tea accounts for 50% of the total number of buds, 100 one buds and two leaves are picked, and the weight is repeated three times. The unit is g, accurate to 0.1g.

[0078] Shoot biomass determination: All weeds in each plot were harvested close to the ground, and the weed biomass in the plot was measured using the fresh weight method.

[0079] (1) Prevention index: bud dry weight increase rate, bud fresh weight increase rate, bud number, bud fresh weight, bud dry weight, bud water content, bud length, bud width. The calculation formula is as follows:

[0080]

[0081] Results and Analysis

[0082] Analysis of the results of weed investigation in tea gardens of Jinzhai tea region and Dabieshan Experimental Station

[0083] In order to understand the characteristics of weeds in tea gardens at medium altitudes and guide weed control in tea gardens, this survey adopted the field survey method to investigate the composition of tea garden weeds in 19 locations including Shuanghe Town, Meishan Town, Baitafan Town, Tiechong Township, Quanjun Township, Mabu Town, Qingshan Town, Yuanchong Village, Zhouyuan Village, Zhutang Township, Songhe, Xiaonanjing Village, and Qishan in Jinzhai in the spring of 2023, and compiled a weed list. A total of 192 weed species were identified and counted, belonging to 58 families and 134 genera, including 157 dicotyledonous weeds, 27 monocotyledonous weeds, and 8 fern weeds, accounting for 81.7%, 14.0%, and 4.1% of the total, respectively.

[0084] Table 3 Summary of weed flora in tea gardens of Jinzhai tea area

[0085]

[0086] To confirm the high-frequency weeds in 18 tea gardens in Jinzhai tea area and the tea garden of the Dabie Mountain Experimental Station, the top 10 high-frequency weeds can be obtained by the number of sample plots where the weeds appear. They are Oxalis corniculata, Torilis scabra, Rosa cymosa, Geranium carolinianum, Galium aparine var., Cerastium glomeratum, Potentilla centigrana, Veronica persica, Senecio scandens, and Artemisia lavandulaefolia. Among them, Oxalis corniculata has the highest occurrence frequency, which is 68%, followed by Torilis scabra with an occurrence frequency of 63.25%.

[0087] Table 4 Species of High-Frequency Weeds in Jinzhai Tea Gardens

[0088]

[0089] Evaluation of Noxious Weeds in the Tea Garden of the Dabie Mountain Experimental Station

[0090] Through the investigation of weeds in the tea garden of the Dabie Mountain Experimental Station, the top 20 weeds with the highest occurrence frequencies are selected. Combining the four noxious weed factors of the occurrence frequency of weeds, vegetation type, weed plant height, and adult plant season in the tea gardens of Jinzhai tea area, the noxious weed index is calculated using the weighted method, and the noxious level is determined. A total of 5 noxious weeds are evaluated. The main noxious weeds that need to be removed during the treatment of leaving good are Imperata cylindrica, Setaria viridis, Pennisetum alopecuroides, and Digitaria chrysoblephara.

[0091] Table 5 List of Noxious Weeds in the Tea Garden of the Dabie Mountain Experimental Station

[0092]

[0093]

[0094] Cultivation Effect of Benign Ground Cover Plants

[0095] In order to screen for beneficial vegetation suitable for the growth of tea plantations in the mixed seeding treatment after weed control, the plant height and root length of beneficial vegetation in spring were measured and compared with the plant height and the spatial vertical depth of tea plants. In terms of plant height, Medicago sativa had the highest plant height, which was 278 mm, but its root length was 454.60 mm, which was greater than the spatial vertical depth of the upper part of the tea plant, would affect the water absorption of the tea plant roots, and would compete with the tea plant roots for soil nutrients in the space. Therefore, it did not meet the standards of beneficial vegetation. The lowest plant height was Viola philippica, only 58.40 mm, and its root length was 107.40 mm, which would not affect the spatial growth of the tea plant roots or the upper space growth. Therefore, it met the selection criteria of beneficial vegetation. Combining the coverage and density of beneficial ground covers in spring, through comprehensive analysis, it was concluded that the ground cover plants meeting the standards of beneficial vegetation were Duchesnea indica, Oxalis corniculata, Viola philippica, Potentilla fragarioides, Veronica arvensis, Carthusian pink, and Phlox subulata.

[0096] Table 6 Cultivation Results of Beneficial Ground Cover Plants

[0097]

[0098]

[0099] Note: Different letters represent significant differences (p<0.05). Determination of weed control indicators and control effect indicators Weed control effect

[0100] To determine the inhibition rate of weeds under different experimental treatments in the tea garden of the Dabieshan Experimental Station, the weed biomass data was statistically analyzed by the DPS completely randomized design method to measure the autumn and spring inhibition rates of weeds in the tea garden. In terms of autumn weed inhibition, the weed inhibition rate of the mixed sowing treatment after weeding was the highest, at 81.45%, followed by the treatment of leaving good vegetation and the mixed transplanting treatment after weeding, with autumn weed inhibition rates of 79.69% and 59.60% respectively. The lowest was the glyphosate treatment, only 45.12%. The weed inhibition rates under the two treatments of leaving good vegetation and mixed sowing after weeding were significantly higher than those of the four treatments of mixed transplanting, mouse-ear fescue, glyphosate, and blank control. Due to seasonal reasons, the growth of summer weeds in the tea garden was strong, so the weed inhibition rate in autumn was significant after arranging the efficacy screening test. In terms of spring weed inhibition, since the growth of spring weeds was not as good as that of summer, through the determination of the weed control index by biomass, the spring biomass of the mixed sowing and mixed transplanting treatments was significantly higher. Because the beneficial vegetation sown in spring grew well in the mixed sowing treatment area, the spring weed inhibition rate was not as strong as the autumn inhibition rate for reference. It is also necessary to comprehensively analyze in combination with the spring tea quality and yield indicators.

[0101] Table 7 Weed Inhibition Rate in the Tea Garden of the Dabieshan Experimental Station

[0102] Treatment Autumn weed inhibition rate Spring weed inhibition rate Liuliang 79.69±5.51aA 89.22±6.00aAB Mixed transplanting 59.60±16.65bAB 72.41±20.83bB Mixed sowing 81.45±4.39aA 84.81±2.32abAB Vulpia myuros 53.47±9.85bB 91.92±1.93aAB Glyphosate 45.12±7.21bB 95.13±1.24aA Blank control 54.49±1.47bB 97.75±0.68aA Negative control (complete removal) - -

[0103] Note: Different letters represent significant differences (p<0.05)

[0104] Yield Increase Effect

[0105] By picking the number of spring bud tips in different treatment plots of the tea garden in the Dabieshan Experimental Station, the results showed that the average number of bud tips per unit area of the treatment of leaving good vegetation, mixed sowing after weeding, mixed transplanting after weeding, and mouse-ear fescue treatment were 249, 311, 149, and 172 respectively. The highest number of bud tips per unit area was the mixed sowing treatment after weeding. And the number of bud tips in the plot of the mixed sowing treatment after weeding was significantly higher than that of the blank control (without weeding). The number of bud tips per unit area of the glyphosate control was 96, which was not significantly different from the blank control and was lower than the blank control treatment.

[0106] The dry weight of the buds in the mixed seeding treatment after weeding was 4.84 g / m², which was extremely significantly higher than that of the blank control treatment. The dry weight increase rate of the mixed seeding treatment after weeding was 346.76%. The dry weights of the buds in the treatment of leaving good grass, mixed transplanting treatment after weeding, mouse-ear fescue treatment, and glyphosate treatment were 4.84 g / m², 4.99 g / m², 3.55 g / m², and 2.24 g / m² respectively. There was no significant difference between the glyphosate treatment and the blank control. The dry weights of the buds in the mixed seeding treatment after weeding, leaving good grass treatment, mixed transplanting treatment after weeding, and mouse-ear fescue treatment all increased to varying degrees, and the dry weight increase rates were 346.76%, 189.72%, 198.73%, and 111.45% respectively. As the most important control effect index, the dry weight increase rate showed that the yield increase effect of the mixed seeding treatment after weeding was the best, followed by the mixed transplanting treatment after weeding.

[0107] The fresh weight of the buds in the mixed seeding treatment after weeding was 28.93 kg / m², which was extremely significantly higher than that of the blank control treatment and the negative control (total removal) treatment. The fresh weight increase rate was 318.23%. The fresh weights of the buds in the treatment of leaving good grass, mixed transplanting treatment after weeding, mouse-ear fescue treatment, and glyphosate treatment were 18.33 g / m², 19.16 g / m², 13.56 g / m², and 7.70 g / m² respectively.

[0108] The relative water content of the buds in the negative control (total removal) treatment was the highest, at 75.90%, and there was a significant difference compared with the glyphosate treatment. The water contents of the buds in the treatment of leaving good grass, mixed seeding treatment after weeding, mixed transplanting treatment after weeding, and mouse-ear fescue treatment were 73.53%, 74.23%, 73.90%, and 73.83% respectively, and there was no significant difference compared with the blank control.

[0109] The significance of the bud length in the mixed seeding treatment after weeding was the highest, and the average bud length was 34.75 mm. The average bud lengths of the buds in the treatment of leaving good grass, mixed transplanting treatment after weeding, and mouse-ear fescue treatment were 28.00 mm, 23.72 mm, and 25.52 mm respectively. There was no significant difference between the negative control (total removal) treatment and the blank control (non-weeding) treatment. The average bud length of the glyphosate treatment was the lowest, at 20.41 mm. The significance of the bud width in the mixed seeding treatment after weeding was also the highest, and the average bud width was 3.07 mm. The average bud width of the glyphosate treatment was the lowest, at 2.25 mm. Through the comparison of the bud morphological data, the buds in the mixed seeding treatment after weeding were slender, and the leaf area was significantly high, and the tea quality was good. The buds in the negative control (total removal) treatment and the glyphosate treatment were wide and short, and there was no significant difference compared with the blank control.

[0110] Table 8 Number of tea tree buds in the tea garden of the Dabieshan Experimental Station

[0111]

[0112] Note: Different letters represent significant differences (p < 0.05)

[0113] Table 9 Relative water content of tea tree buds in the tea garden of the Dabie Mountain Experimental Station

[0114]

[0115]

[0116] Note: Different letters indicate significant differences (p < 0.05).

[0117] Table 10 Results of Duncan's multiple comparison of the morphological differences of tea tree buds in the tea garden of the Dabie Mountain Experimental Station

[0118]

[0119] Note: Different letters indicate significant differences (p < 0.05).

Claims

1. A method for controlling tea garden weeds in the Dabie Mountain tea region, characterized in that: The benign ground cover cultivation method is adopted for control, and benign ground cover is mixed in the tea garden after weeding. The benign ground cover includes snakeberry, oxalis, viola yedoensis, cinquefoil, erect veronica, dianthus and shibazakura.

2. The method according to claim 1, characterized in that: The mixed sowing time is September, and the sowing amount is calculated as 8-15 seeds per square centimeter.

3. The method according to any one of claims 1 to 2, characterized in that: Used to increase the number of buds, bud dry weight and leaf area.

4. The method according to any one of claim 3, characterized in that: Used to increase tea production.

5. The method according to any one of claim 3, characterized in that: Used to improve the quality of tea.

Images