Method for realizing purification and rejuvenation of Tieguanyin tea trees by isolated interplanting of fungus and grass

Abstract

The invention discloses a method for realizing purification and rejuvenation of Tie Guanyin tea trees by utilizing pennisetum sinese isolated interplanting, which specifically comprises the following steps: planting pennisetum sinese around the Tie Guanyin tea trees as an isolation belt, and providing sufficient nitrogen fertilizer for the Tie Guanyin tea trees by utilizing the strong nitrogen fixation effect of the pennisetum sinese. Pennisetum sinese is harvested and damaged and then can be deeply buried in the tea garden to serve as green manure to promote growth of the Tieguanyin tea trees. Therefore, the method disclosed by the invention has good economic benefits and popularization values.

Description

Technical Field

[0001] The invention belongs to the technical field of tea tree planting, and particularly relates to a method for purifying and rejuvenating Tieguanyin tea trees by utilizing mushroom grass isolation and interplanting. Background Art

[0002] In the breeding of Tieguanyin tea trees, on the basis of selecting cuttings with pure provenance and strong branches, a small amount of variation may still occur during the cutting and planting period. These differences will accumulate, which is not conducive to the purity of the variety and affects the quality of tea. In order to ensure the purity of the tea provenance, the traditional purification and rejuvenation methods generally adopt repeated methods such as discarding impurities and maintaining purity and transplanting to maintain the traditional excellent quality of Tieguanyin tea trees. However, the traditional method of discarding impurities and maintaining purity generally adopts the method of removing plants and setting up isolation belts, which will cause a certain degree of damage to the ecological environment of the tea garden and is not conducive to the growth of tea trees. If the isolation from other plants is not done well, it is easy to cause the variety to mix, and the transplantation method is also easy to cause the death of the plant or the decline of vitality due to changes in the growth environment and damage to the root system during transplantation. Summary of the invention

[0003] The object of the present invention is to provide a method for purifying and rejuvenating Tieguanyin tea trees by using Juncao isolation and interplanting.

[0004] To achieve the above object, the present invention adopts the following technical solution: A method for purifying and rejuvenating Tieguanyin tea trees by using Juncao isolation interplanting, comprising the following steps: 1) Site selection: Find a breeding area for Tieguanyin tea trees with relatively pure and high-quality varieties in the birthplace of Tieguanyin tea trees. Then, select tea gardens with physical characteristics in the selected breeding area and remove other plants around the tea gardens. 2) Remove weeds and inferior plants: Select the excellent strains with pure varieties and good growth in the tea garden selected in step 1), and remove weeds and diseased plants; 3) Interplanting and isolation: In step 1), select the terrace walls and banks of the tea garden to plant Juncao, and use the characteristics of Juncao's strong growth and non-invasiveness to isolate it from the surrounding planting areas; Juncao will not only not affect the growth of Tieguanyin tea trees, but also has a strong nitrogen fixation effect, which can ensure that Tieguanyin tea trees have sufficient nitrogen fertilizer for growth; 4) Covering and moisturizing: harvest the Juncao after it grows tall, and leave a stubble of 10-15cm (harvest in due time according to the growth situation, and can be harvested 3-4 times a year), then break the harvested Juncao into pieces and cover the tea garden to maintain the humidity of the tea garden; 5) Increase green manure: After the Juncao covering the tea garden rots, deep plow the tea garden so that the Juncao is buried in the tea garden as green manure, and then cover it with newly cut Juncao; 6) Cultivation of superior plants: Screen the excellent strains after careful management and remove the weaker ones; 7) Layering propagation: Through morphological observation and metabolic component determination, the strains with vigorous growth and excellent quality are selected again and propagated by layering; 8) Transplantation: Step 7) The young plants after layering are transplanted in a concentrated plot close to the growth environment of the mother tree in the birthplace of the Tieguanyin tea variety, and continue to use Juncao for purification and rejuvenation according to the above steps.

[0005] Furthermore, the physical characteristic body in step 1) is red bud Tieguanyin with the characteristics of "red buds and crooked tail".

[0006] Furthermore, in the tea gardens selected in step 1), the proportion of physical features should be greater than 30%, and the area of ​​the tea garden should be no less than 300m 2 .

[0007] Furthermore, the grass planted in step 3) is specifically giant grass. Giant grass has the characteristics of fast growth and strong adaptability, and contains endogenous nitrogen-fixing bacteria, which can play a good role in nitrogen fixation in tea gardens. Furthermore, the specific method of planting Juncao in step 3) is: 2 Dig a hole on the soil surface with a depth of 15-20 cm, put 2 Juncao seed stems in each hole, cover with soil and water to keep the soil moist; at the same time, dig trenches between the rows of Tieguanyin tea trees with a depth of 25-30 cm and a width of about 30 cm. Then cut the Juncao seed stems into small sections of about 30 cm, place them obliquely in the trenches, cover with 10 cm of soil and water them sufficiently.

[0008] Furthermore, in step 4), the Juncao is harvested when it grows to a height of 1-1.5 meters.

[0009] The beneficial effects of the present invention are: The present invention provides a method for purifying and rejuvenating Tieguanyin tea tree varieties by using interplanting of mushroom grass. Specifically, giant mushroom grass is planted around Tieguanyin tea trees, and giant mushroom grass has the characteristics of fast growth and strong adaptability, so that a good isolation zone can be formed between the selected excellent strains with pure varieties and good growth and other plants quickly and effectively; at the same time, interplanting giant mushroom grass on the terrace wall, bank and between the rows of Tieguanyin tea trees in the tea garden will not only not affect the growth of Tieguanyin tea trees, but also giant mushroom grass has a strong nitrogen fixation effect, which can provide sufficient nitrogen fertilizer for Tieguanyin tea trees; the giant mushroom grass is crushed and buried deep in the tea garden, and after it rots, it can decompose a large amount of nutrients such as nitrogen, phosphorus, potassium and trace elements such as iron, manganese, zinc and copper, which can be used as organic fertilizer to increase soil fertility and improve soil structure, provide comprehensive nutrition for Tieguanyin tea trees, enhance stress resistance and promote growth. DETAILED DESCRIPTION

[0010] In order to make the contents of the present invention easier to understand, the technical solution of the present invention is further described below in conjunction with specific implementation methods, but the present invention is not limited thereto. Example

[0011] A method for purifying and rejuvenating Tieguanyin tea trees by using Juncao isolation interplanting, the steps of which are as follows: 1) Selection of Juncao: Giant Juncao has the characteristics of fast growth and strong adaptability, and contains endogenous nitrogen-fixing bacteria, which can play a good role in nitrogen fixation in tea gardens. Therefore, Giant Juncao is selected as the strain for tea garden isolation; 2) Site selection: Find a breeding area for Tieguanyin tea trees with relatively pure and high-quality varieties in the birthplace of Tieguanyin tea trees. Then, select a breeding area with a proportion of more than 30% of red bud Tieguanyin tea with the physical characteristics of "red buds and crooked tails" and an area of ​​no less than 300 m2. 2 of tea gardens and remove other plants around the tea gardens; 3) Remove weeds and inferior plants: Select the excellent strains with pure varieties and good growth in the tea garden selected in step 2), and remove weeds and diseased plants; 4) Interplanting and isolation: In step 2), select the terraces and banks of the tea garden to plant Juncao, and use the characteristics of Juncao's strong growth and non-invasiveness to isolate it from the surrounding planting areas; the specific planting method is to plant Juncao every 0.25 m 2 Dig a hole on the soil surface with a depth of 15-20 cm, put 2 Juncao seed stems in each hole, cover with soil and water to keep the soil moist; at the same time, dig trenches between the rows of Tieguanyin tea trees with a depth of 25-30 cm and a width of about 30 cm, then cut the Juncao seed stems into small sections of about 30 cm, put them obliquely into the trenches, cover with 10 cm of soil and water them sufficiently; 5) Covering and moisturizing: When the Juncao grows to about 1-1.5 meters, it can be harvested for the first time, and a stubble of 10-15cm can be left (afterwards, it can be harvested in time according to the growth situation, and it can be harvested 3-4 times a year). After that, the harvested Juncao will be broken into pieces and covered in the tea garden to maintain the humidity of the tea garden; 6) Increase green manure: After the Juncao covering the tea garden rots, deep plow the tea garden so that the Juncao is buried in the tea garden as green manure, and then cover it with newly cut Juncao; 7) Cultivation of superior plants: Screen the excellent strains after careful management and remove the weaker ones; 8) Layering propagation: Through morphological observation and metabolic component determination, the strains with vigorous growth and excellent quality are selected again and propagated by layering; 9) Transplantation: Step 8) After layering, the young plants are transplanted in a concentrated plot close to the growth environment of the mother tree in the birthplace of the Tieguanyin tea variety, and continue to follow the above steps to use mushroom grass for intercropping and isolation, covering for moisture retention, and increasing green manure.

[0012] Comparative Example The traditional method of setting up isolation belts and applying bio-organic fertilizer (organic matter ≥ 45.0%, N+P2O5+K2O ≥ 5.0%, effective viable bacteria ≥ 50 million / g; application amount 800 kg / mu) was used to purify and rejuvenate Tieguanyin tea trees. The finished tea obtained in the embodiment and the comparative example was evaluated by professional tea appraisers, and the evaluation results are shown in Table 1.

[0013] Table 1

[0014] Through observation during the experimental process, it was found that the Tieguanyin tea purified and rejuvenated by isolation and intercropping with giant fungus grass can maintain the characteristics of "red buds and crooked tail" consistent with the pure red bud Tieguanyin tea, and the finished tea produced can also fully reflect the excellent characteristics of this pure variety.

[0015] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A method for purifying and rejuvenating Tieguanyin tea trees by using Juncao isolation interplanting, characterized in that: The following steps are involved: 1) Site selection: Find a breeding area for pure and high-quality Tieguanyin tea trees in the birthplace of the Tieguanyin tea tree variety, then select a tea garden with physical characteristics in the selected breeding area and remove other plants around the tea garden; 2) Remove weeds and inferior plants: Select the excellent strains with pure varieties and good growth in the tea garden selected in step 1), and remove weeds and diseased plants; 3) Interplanting and Isolation: In step 1), select the terrace walls and banks of the tea garden to plant Juncao as isolation zones; 4) Covering and moisturizing: harvest the Juncao after it grows tall, leaving a stubble of 10-15cm, then break the harvested Juncao into pieces and cover the tea garden to maintain the humidity of the tea garden; 5) Increase green manure: After the mushroom grass covering the tea garden has rotted, deep plow the tea garden and then cover it with newly cut mushroom grass; 6) Cultivation of superior plants: Screen the excellent strains after careful management and remove the weaker ones; 7) Layering propagation: Through morphological observation and metabolic component determination, the strains with vigorous growth and excellent quality are selected again and propagated by layering; 8) Transplantation: Step 7) The young plants after layering are transplanted in a concentrated plot close to the growth environment of the mother tree in the birthplace of the Tieguanyin tea variety, and continue to use Juncao for purification and rejuvenation according to the above steps.

2. The method according to claim 1, characterized in that The physical characteristic body described in step 1) is red bud Tieguanyin with the characteristics of "red bud and crooked tail".

3. The method according to claim 1, characterized in that In the tea gardens selected in step 1), the proportion of physical features should be greater than 30%, and the area of ​​the tea garden should be no less than 300m 2 .

4. The method according to claim 1, characterized in that: The mushroom grass planted in step 3) is specifically giant mushroom grass.

5. The method according to claim 1, characterized in that The specific method of planting Juncao in step 3) is: 2 Dig a hole on the soil surface with a depth of 15-20 cm, put 2 Juncao seed stems in each hole, cover with soil and water to keep the soil moist; at the same time, dig trenches between the rows of Tieguanyin tea trees with a depth of 25-30 cm and a width of 30 cm. Then cut the Juncao seed stems into 30 cm small sections, place them obliquely in the trenches, cover with 10 cm of soil and water them sufficiently.

6. The method according to claim 1, characterized in that In step 4), the grass is harvested when it grows to a height of 1-1.5 meters.

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