CN111837558A - Fertilizing method for increasing organic selenium content in tea - Google Patents
Fertilizing method for increasing organic selenium content in tea Download PDFInfo
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- CN111837558A CN111837558A CN202010823253.4A CN202010823253A CN111837558A CN 111837558 A CN111837558 A CN 111837558A CN 202010823253 A CN202010823253 A CN 202010823253A CN 111837558 A CN111837558 A CN 111837558A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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Abstract
The invention provides a fertilizing method for improving the content of organic selenium in tea, and relates to the technical field of tea tree planting. The fertilizing method comprises the following steps: spraying the organic selenium preparation diluent on the leaf surfaces of the tea trees; the concentration of the organic selenium in the organic selenium preparation diluent is 100 mg/kg; the fertilizing frequency is 1-3 times; the dosage of the organic selenium preparation diluent is (20-60) kg/667m2. The fertilizing method provided by the invention can effectively improve the contents of organic selenium and tea polyphenol in the tea, is simple and safe, can effectively reduce the production cost, improves the quality of the tea and improves the economic benefit.
Description
Technical Field
The invention relates to the technical field of tea tree planting, in particular to a fertilizing method for improving the content of organic selenium in tea.
Background
Selenium (Se) is one of the trace elements essential for human health. Selenium deficiency in humans can cause a variety of diseases such as keshan disease, Kashin-Beck disease, cancer, cardiovascular and cerebrovascular diseases, goiter, immunodeficiency, etc., and selenium is an important component of many enzymes.
Tea tree (Camellia sinensis) is an important evergreen woody plant. The tea tree leaf tissue is rich in nutrition, and is rich in tea polyphenols with antioxidant, antiinflammatory, anticancer and lipid metabolism regulating effects. Tea polyphenols is the general name of polyphenol compounds in tea, and is obtained by tea polyphenols oxidase catalysis. To date, research on selenium-enriched tea has focused primarily on the addition of sodium selenite (Na) to fertilizers2SeO3) And inorganic selenium. However, with the development of food nutrition and molecular microbiology, people gradually realize that the biological effectiveness and toxicity of selenium not only depend on the total amount of selenium, but also are closely related to the chemical form of selenium, and inorganic selenium has low biological effectiveness, high toxicity and undesirable absorption and utilization. How to scientifically supplement the organic selenium and the tea polyphenol for the human body is a question which is worth thinking.
Disclosure of Invention
In order to solve the problems, the invention provides a fertilizing method for improving the content of organic selenium in tea. The fertilizing method provided by the invention can effectively improve the contents of organic selenium and tea polyphenol in tea, is simple and safe, and can effectively reduce the production cost.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a fertilizing method for improving the content of organic selenium in tea, which comprises the following steps: spraying the organic selenium preparation diluent on the leaf surfaces of the tea trees; the concentration of the organic selenium in the organic selenium preparation diluent is 100 mg/kg; the fertilizing frequency is 1-3 times; the dosage of the organic selenium preparation diluent is (20-60) kg/667m2。
Preferably, the number of said applications is 3.
Preferably, the dosage of the organic selenium preparation diluent is 30kg/667m2。
Preferably, when the fertilization times are 1 time, the fertilization time is 10 days before picking; when the fertilization times are 2, the fertilization time is 25 days before picking and 10 days before picking respectively; when the fertilization times are 3 times, the fertilization time is 37 days before picking, 25 days before picking and 10 days before picking respectively.
Preferably, when the fertilization times are 1 time, the fertilization time is 3 months and 22 days; when the fertilization times are 2, the fertilization time is 3 months, 22 days and 4 months, 3 days; when the fertilization times are 3, the fertilization time is 3 months and 22 days, 4 months and 3 days and 4 months and 18 days.
The fertilizing method provided by the invention effectively improves the contents of organic selenium and tea polyphenol in the tea by limiting the conditions of the dosage, the spreading times and the like of the organic selenium preparation in the organic selenium preparation diluent. The results of the embodiment show that the fertilizing method provided by the invention can not only improve the selenium content in the tea leaves by 86.84% -93.04%, but also effectively improve the quality of the tea leaves and the content of tea polyphenol.
Drawings
The effect of the fertilization method provided by the embodiment and the comparative example in FIG. 1 on the selenium content of tea (wherein T1-T6 refer to comparative examples 1-6, and T7-T9 refer to examples 1-3).
Detailed Description
The invention provides a fertilizing method for improving the content of organic selenium in tea, which comprises the following steps: spraying the organic selenium preparation diluent on the leaf surfaces of the tea trees; the concentration of the organic selenium in the organic selenium preparation diluent is 100 mg/kg; the fertilizing frequency is 1-3, and the preferable frequency is 3; the dosage of the organic selenium preparation diluent is (20-60) kg/667m2More preferably 30kg/667m2. In the invention, the dosage of the diluent is preferably the total dosage, namely the total dosage of fertilizing for 1-3 times. The fertilizing method provided by the invention is simple and easy to operate, is convenient for market promotion, does not pollute soil when the fertilizer rich in selenium is sprayed on the leaf surfaces of tea trees, and is an environment-friendly fertilizing method. The invention can limit the times, dosage and concentration of applying the organic selenium preparation diluent and match the dosage with the fertilizing timesThe selenium content in the tea can be effectively improved.
In the invention, the organic selenium preparation diluent is obtained by diluting an organic selenium preparation with water; the content of the organic selenium in the organic selenium preparation is preferably 5000 mg/kg. The organic selenium preparation used in the invention is derived from an organic selenium-rich microbial inoculum disclosed in patent No. 201610338121.6.
The fertilizing method provided by the invention is safe to people and low in cost due to low use concentration.
In the present invention, when the number of times of fertilization is 1, the time of fertilization is preferably 10 days before picking, and more preferably 3 months and 22 days; when the fertilization times are 2, the fertilization time is preferably 25 days before picking and 10 days before picking, and is further preferably 3 months, 22 days and 4 months, 3 days respectively; when the number of times of the fertilization is 3, the fertilization time is preferably 37 days before picking, 25 days before picking and 10 days before picking, and more preferably 3 months, 22 days, 4 months, 3 days and 4 months, 18 days, respectively. The fertilization times provided by the invention limit the time for spraying the fertilizer, and simplify the fertilization method.
For further illustration of the present invention, the following detailed description will be made with reference to the drawings and examples to provide a fertilizing method for increasing the content of organic selenium in tea leaves, but they should not be construed as limiting the scope of the present invention.
Example 1
Preparing organic selenium preparation with organic selenium content of 5000mg/kg into organic selenium preparation diluent with concentration of 100 mg/L. At a rate of 10kg/667m on days 3/month and 22/month and 3/month and 4/month2The dosage is sprayed on the surface of a product with the length of 14m, the width of 2.5m and the area of 35m2On the leaf surface of the tea tree. Labeled T7.
Example 2
Preparing organic selenium preparation with organic selenium content of 5000mg/kg into organic selenium preparation diluent with concentration of 100 mg/L. 20kg/667m respectively for 22 days in 3 months, 3 days in 4 months and 18 days in 4 months2The dosage is sprayed on the surface of a product with the length of 14m, the width of 2.5m and the area of 35m2On the leaf surface of the tea tree. Labeled T8.
Example 3
Preparing organic selenium preparation with organic selenium content of 5000mg/kg into organic selenium preparation diluent with concentration of 100 mg/L. 30kg/667m in the 3 month and 22 days2The dosage is sprayed on the surface of a product with the length of 14m, the width of 2.5m and the area of 35m2On the leaf surface of the tea tree. Labeled T9.
Comparative example 1
Preparing organic selenium preparation with organic selenium content of 5000mg/kg into organic selenium preparation diluent with concentration of 30 mg/L. 33kg/667m in 22 days in 3 months2The dosage is sprayed on the surface of a product with the length of 14m, the width of 2.5m and the area of 35m2On the leaf surface of the tea tree. Labeled T1.
Comparative example 2
Preparing organic selenium preparation with organic selenium content of 5000mg/kg into organic selenium preparation diluent with concentration of 30 mg/L. At 66kg/667m on 22 days 3/month and 4/month2The dosage is sprayed on the surface of a product with the length of 14m, the width of 2.5m and the area of 35m2On the leaf surface of the tea tree. Labeled T2.
Comparative example 3
Preparing organic selenium preparation with organic selenium content of 5000mg/kg into organic selenium preparation diluent with concentration of 30 mg/L. Day 22 in month 3, day 3 in month 4 and day 18 in month 4 at a ratio of 100kg/667m2The dosage is sprayed on the surface of a product with the length of 14m, the width of 2.5m and the area of 35m2On the leaf surface of the tea tree. Labeled T3.
Comparative example 4
Preparing organic selenium preparation with organic selenium content of 5000mg/kg into organic selenium preparation diluent with concentration of 50 mg/L. 20kg/667m on days 3/month 22, 4/month 3/day 4 and 4/month 182The dosage is sprayed on the surface of a product with the length of 14m, the width of 2.5m and the area of 35m2On the leaf surface of the tea tree. Labeled T4.
Comparative example 5
Preparing organic selenium preparation with organic selenium content of 5000mg/kg into organic selenium preparation diluent with concentration of 50 mg/L. 40kg/667m in the 3 month and 22 days2The dosage is sprayed on the surface of a product with the length of 14m, the width of 2.5m and the area of 35m2On the leaf surface of the tea tree. Labeled T5.
Comparative example 6
Preparing organic selenium preparation with organic selenium content of 5000mg/kg into organic selenium preparation diluent with concentration of 50 mg/L. In 3 months and 22 daysAnd 4 months and 3 days respectively at 60kg/667m2The dosage is sprayed on the surface of a product with the length of 14m, the width of 2.5m and the area of 35m2On the leaf surface of the tea tree. Labeled T6.
Application example 1
The test positions are located in a long tea making field in English and mountain counties of Hubei province and a city guan Luo Si ditch tea base in health county of Xiangyang city, the altitude is 600-800 meters, the climate is subtropical continental monsoon climate, the annual average temperature is 7-12 ℃, and the annual average rainfall is 934.6 mm. The tea tree variety selected in the experiment is Wuniu early, and the tree age is different from 20-30 years.
Organic selenium preparation diluent is respectively sprayed according to the fertilization methods provided by the examples 1-3 and the comparative examples 1-6, tea trees in the CK group are subjected to conventional watering operation, tea leaves are picked up in the 10 th day after spraying is finished, and the content of selenium in the tea leaves is detected. The results of the detection are shown in FIG. 1. As can be seen from FIG. 1, the selenium content of the tea leaves in the T7-9 groups (i.e., examples 1-3) is significantly higher than that in the T1-6 groups (i.e., comparative examples 1-6). The fertilizing method provided by the embodiment of the invention can effectively improve the selenium content in the tea.
Application example 2
Other effective substances (tea polyphenol, caffeine, free amino acids, water content, etc.) were measured on tea leaves harvested in the example group (selenium-supplemented group) of example 1, and the average values of the measurement results compared with those of the CK group are shown in Table 1.
TABLE 1 Effect of biological organic selenium on tea quality ingredients
As can be seen from table 1, the method of administration of the organoselenium formulations provided in the examples also has an effect on tea quality. After the biological organic selenium preparation is sprayed on the leaf surfaces of tea trees, various quality components in the tea leaves are obviously changed and show different change rules. After the organic selenium preparation provided by the embodiment is sprayed, the contents of tea polyphenol, caffeine, selenium and moisture in the tea are obviously higher than those in a CK group. Wherein the selenium content is increased by 1170.59%, the water content is increased by 41.28%, the tea polyphenol content is increased by 7.51%, and the caffeine content is increased by 3.28%.
Therefore, the fertilizing method provided by the application can effectively improve the selenium content in the tea, and is beneficial to improving the comprehensive quality of the tea and improving the economic benefit.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. A fertilizing method for improving the content of organic selenium in tea is characterized by comprising the following steps: spraying the organic selenium preparation diluent on the leaf surfaces of the tea trees; the concentration of the organic selenium in the organic selenium preparation diluent is 100 mg/kg; the fertilizing frequency is 1-3 times; the dosage of the organic selenium preparation diluent is (20-60) kg/667m2。
2. Fertilizing method as in claim 1, characterized in that the number of said applications is 3.
3. The fertilization method of claim 1, wherein the organic selenium preparation diluent is used in an amount of 30kg/667m2。
4. The fertilization method of claim 1, wherein when the number of fertilization times is 1, the fertilization time is 10 days before picking; when the fertilization times are 2, the fertilization time is 25 days before picking and 10 days before picking respectively; when the fertilization times are 3 times, the fertilization time is 37 days before picking, 25 days before picking and 10 days before picking respectively.
5. The fertilization method according to claim 1, wherein when the fertilization is performed 1 time, the fertilization time is 3 months and 22 days; when the fertilization times are 2, the fertilization time is 3 months, 22 days and 4 months, 3 days; when the fertilization times are 3, the fertilization time is 3 months and 22 days, 4 months and 3 days and 4 months and 18 days.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105165533A (en) * | 2015-09-24 | 2015-12-23 | 广西百润源农业有限公司 | High-yield planting method of pollution-free broadleaf holly leaves |
| CN105950503A (en) * | 2016-05-19 | 2016-09-21 | 湖北民族学院 | Bacillus subtilis SE201412 and organic-selenium-rich bactericide |
| CN108076936A (en) * | 2016-11-20 | 2018-05-29 | 石佳媛 | The production method of Se rich tea |
| CN111386821A (en) * | 2020-04-22 | 2020-07-10 | 惠州市硒态链生物科技有限公司 | Production method of selenium-rich tea |
-
2020
- 2020-08-17 CN CN202010823253.4A patent/CN111837558A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105165533A (en) * | 2015-09-24 | 2015-12-23 | 广西百润源农业有限公司 | High-yield planting method of pollution-free broadleaf holly leaves |
| CN105950503A (en) * | 2016-05-19 | 2016-09-21 | 湖北民族学院 | Bacillus subtilis SE201412 and organic-selenium-rich bactericide |
| CN108076936A (en) * | 2016-11-20 | 2018-05-29 | 石佳媛 | The production method of Se rich tea |
| CN111386821A (en) * | 2020-04-22 | 2020-07-10 | 惠州市硒态链生物科技有限公司 | Production method of selenium-rich tea |
Non-Patent Citations (2)
| Title |
|---|
| 胡秋辉等: "低硒土壤茶园茶叶富硒方法及其富硒效应", 《南京农业大学学报》 * |
| 赵天辉等: "锌硒肥在茶树上的应用", 《遵义科技》 * |
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