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A planting method for increasing the content of tea polyphenols in tea leaves

A planting method and technology of tea polyphenols, applied in botany equipment and methods, fertilization methods, plant protection, etc., can solve the problems of lack of planting methods of tea polyphenols in tea, and achieve the effect of improving quality and content

Active Publication Date: 2021-11-26
NINGDE NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, there is still a relatively lack of planting methods that can increase the content of tea polyphenols in tea leaves.

Method used

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  • A planting method for increasing the content of tea polyphenols in tea leaves
  • A planting method for increasing the content of tea polyphenols in tea leaves
  • A planting method for increasing the content of tea polyphenols in tea leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A planting method for increasing the content of tea polyphenols in tea leaves, comprising the following steps:

[0028] S1, select the land with a growth temperature of 20-30°C and a slope of less than 30 degrees, and adjust the soil pH value to 5.11 with acid or alkali, the acid is 1M hydrochloric acid solution, and the alkali is 1M sodium hydroxide solution;

[0029] S2, after deeply plowing the land by 100-150cm, measure the content of alkaline nitrogen, available potassium and available phosphorus in the soil, open ditches with a depth of 30-50cm, and apply base fertilizer in the ditch, which contains ammonium bicarbonate, chloride Potassium and calcium phosphate, mix the soil, and adjust the alkaline hydrolysis nitrogen content in the soil to 31.32mg / kg, the available potassium content to 22.41mg / kg, and the available phosphorus content to 0.39mg / kg.

[0030] S3, planting the tea seedlings without damage by diseases and insect pests, the plant spacing of tea seedli...

Embodiment 2

[0070] Use acid or alkali to adjust the pH value of the soil to 4.82, base fertilizer contains sodium nitrate, potassium sulfate and calcium phosphate, control the content of alkaline hydrolysis nitrogen to 34.1mg / kg, the content of available potassium to 97.53mg / kg and the content of available phosphorus to 3.19mg / kg. The copper fertilizer is copper sulfate monohydrate, the zinc fertilizer is zinc oxide, the copper content in the soil is 2.6mg / kg, and the zinc content is 172.2mg / kg. Others are the same as embodiment 1.

[0071] The content of tea polyphenols in the tea leaves was measured to be 18.06mg / L.

Embodiment 3

[0073] Use acid or alkali to adjust the pH value of the soil to 4.77. The base fertilizer is urea, plant ash and monoammonium phosphate. Control the content of alkaline nitrogen to 34.1mg / kg, available potassium to 42.52mg / kg and available phosphorus to 0.5mg / kg. The copper fertilizer is basic copper carbonate, the zinc fertilizer is zinc chloride, and the copper content in the soil is 6.4 mg / kg, and the zinc content is 75.8 mg / kg. Others are the same as in Example 1.

[0074] The content of tea polyphenols in the tea leaves was measured to be 20.85mg / L.

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Abstract

The invention provides a planting method for increasing the content of tea polyphenols in tea leaves, comprising the following steps: S1, select a land with a growth temperature of 20-30°C and a slope of less than 30°, and adjust the pH of the soil to 4.0-30°C with acid or alkali 6.5; S2, after deeply plowing the land for 100-150cm, detect the content of alkaline nitrogen, available potassium and available phosphorus in the soil, apply base fertilizer to adjust the soil, so that the content of alkaline nitrogen in the soil is 30-100mg / kg, and the content of available potassium 20-50mg / kg, available phosphorus content 0.3-2.20mg / kg; S3, take tea seedlings free from diseases and insect pests for planting, tea seedling planting distance 20-30cm, row spacing 100-150cm, plant 2-3 plants in each clump, and carry out seedling preservation and replenishment ; S4, manage during the growth of tea seedlings, including fertilization, pest control, and pruning. The method can significantly increase the content of tea polyphenols in the tea leaves.

Description

technical field [0001] The invention relates to a planting method for increasing the content of tea polyphenols in tea leaves, and belongs to the technical field of tea plantation. Background technique [0002] Tea polyphenols are one of the main nutrients of tea. In the process of making tea, tea polyphenols undergo continuous chemical changes, especially when tea polyphenols and its oxidation products form complexes, we usually drink tea, we can smell and taste the aroma of tea. The color of tea is mainly composed of chlorophyll of tea and tea polyphenols with different oxidation degrees. Chlorophyll is seriously lost during the manufacturing process of tea, so the color of tea mainly depends on the output of tea polyphenols and their oxidized polymers. Tea polyphenols have many functions and effects. Tea polyphenols in tea are an antioxidant, which can resist oxidation, slow down skin aging, beautify and nourish skin; it can lower blood pressure and blood sugar; it can s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G17/00A01G13/00A01C21/00C05D9/02C05F11/00
CPCA01C21/005A01G13/00A01G17/005C05D9/02C05F11/00
Inventor 薛岚雷莹庄凰龙
Owner NINGDE NORMAL UNIV