CN103931402A - Method for lowering content of rare earth elements in new tips of tea trees - Google Patents
Method for lowering content of rare earth elements in new tips of tea trees Download PDFInfo
- Publication number
- CN103931402A CN103931402A CN201410178418.1A CN201410178418A CN103931402A CN 103931402 A CN103931402 A CN 103931402A CN 201410178418 A CN201410178418 A CN 201410178418A CN 103931402 A CN103931402 A CN 103931402A
- Authority
- CN
- China
- Prior art keywords
- rare earth
- tea
- enrichment
- fertilizer
- plant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Fertilizers (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention provides a method for lowering content of rare earth elements in new tips of tea trees. The method comprises the steps of planting rare earth hyperaccumulators, increasing the height of the tea trees, properly carrying out tender picking, applying fertilizer or farm chemicals with zero or low rare earth content, and applying dolomite dust to a severely-acidized tea garden. The method is easy and convenient to implement, easy to operate and low in cost, under the premise that the production goals of the high quality and high yield and efficiency of tea leaves are not influenced, the content of the rare earth elements in the new tips of the tea trees is effectively lowered, the qualified rate of the content of the rare earth of the tea leaves is greatly improved, the treatment to soil rare earth pollution is further facilitated, and the economic losses caused by the problem of exceeding of the rare earth in the future domestic and oversea trading of the tea leaves can be avoided.
Description
Technical field
The invention belongs to tree plant cultivation, tea garden management field, be specifically related to a kind of method that reduces And Development of Tea Shoot Rare Earth Element Contents, be particularly useful for rare earth element background value higher or taking the ripe young sprout of tea tree appropriateness as raw material Cha district.
Background technology
One of the Cha Shi world today three large beverages, China is the original producton location of tea tree, the place of origin of tea medicine and tea culture, the cradle of red, green, black, blue or green, the white and jasmine tea of the large teas in the Ye Shi world six, wherein black tea, Oolong tea (being blue or green tea), white tea and jasmine tea are the Special teas of China.Go through the development of more than 5,000 years, the distribution of tealeaves and cultivate many countries and regions in six ocean all over the world, wherein with area under cultivation and the output maximum in Asia.Nearly 4,500,000 hm of tea place, the whole world in 2013 area
2, tea place area reaches 100,000 hm
2there are China, India, Sri Lanka, Kenya, Vietnam, Indonesia in above country, wherein Chinese tea place area 257.9 ten thousand hm
2, rank first in the world, account for 57.8% of tea place, the world gross area; Tea yield 189.0 ten thousand t, rank first in the world, and account for 38.7% of Gross World Product; Export 32.20 ten thousand t, occupy the second in the world, tea industry production value reaches 2,100 hundred million yuans.A large amount of scientific researches both at home and abroad show, tealeaves has fabulous cancer-resisting, health care's effect, and global tealeaves volume of production and marketing constantly increases, and in past 10 years, global tea yield is with average annual 3.75% speed increment, and Tea Consumption is with average annual 3.45% speed increment.Along with pulling of Tea Consumption, tealeaves becomes the important economic crops of China and traditional agricultural exports, and green tea is the traditional advantage product of China, and its output and export volume account for the more than 80% of world's green tea total amount, rank the first in the world; The Special teas such as black tea, Oolong tea, white tea and jasmine tea have unique separately qualitative characteristics, occupy first place in the world in volume of production and marketing position; The ratio that tealeaves income accounts for tealeaves main producing region per capita net income improves constantly, current high person reaches 56%, tea industry has become one of Important Economic pillar of tealeaves main producing region, and tea industry, as a favorable to the people engineering of Huimin, plays an important role in urban-rural integration and home farm's cultivation simultaneously.Along with the raising of people's living standard and the enhancing of health care consciousness, tea industrial market prospect is more wide.
China is not only tealeaves production and marketing big country, is also genuine rare earth resources big country in the world, and world's occupation rate of China's rare earth resources is the highest, is 41.36%.In tealeaves, there are 15 kinds of natural rare earth elements, but main be 5 kinds, i.e. La, Ce, Nd, Pr and Y, their content accounts for the more than 90% of total amount of rare earth.Large quantity research shows, rare earth element shows as low short height to vegeto-animal impact to be pressed down, in June, 2013 GB2762-2012 " pollutants in food limitation " formally implements, for rare earth limitation problem is disposed in discretion, through review, wouldn't cancel current standard middle rare earth limit index, tealeaves rare earth standard is still 2mg/kg.In food standard, the rare earth limitation rare earth limit standard that to be China formulate for self distinctive rare earth residue problem, CAC, Australia and New Zealand, Japan, the U.S. and China Taiwan do not specify Rare-earth Metals In Food element management expectancy.Show according to relevant measurement data in 2007 to 2012, the rare earth exceeding standard rate of China's black tea, green tea is 10%～20%, and the exceeding standard rate of Oolong tea is 60%～70%, and the exceeding standard rate of black tea, Pu'er tea is 80%～90%.Study carefully it eventually because being mainly: (1) parent soil material content of rare earth is high.Most of soil of southern china seven provinces and regions (Jiangxi, Guangdong, Guangxi, Hunan, Yunnan, Fujian, Zhejiang) all belongs to weathering type soil, in soil, have abundant ion type rareearth resource, and above-mentioned seven provinces China's famous-particular-excellent tealeaves main producing region just; (2) rare earth application dosage exceeds standard.Because micro-rare earth element has facilitation to growing of tea tree, can upgrading increase production, due to China's heavy dose of rare earth fertilizer additive and plant growth regulator, residual distinctive problem of China that become of rare earth element of using for many years.(3) long-term applying nitrogen fertilizer, soil acidification, the rare earth in soil can utilize state to be absorbed by tea tree by utilizing state to become.
In tealeaves in 2012 with since detecting 16 kinds of ree content summations and being designated as tealeaves content of rare earth, the tealeaves rare earth event that exceeds standard occurs again and again, push quality and safety of tea problem " the teeth of the storm ", especially Oolong tea, the black tea of public opinion to and Pu'er tea producing region is suffered has the greatest impact.Rare earth problem is paid much attention in the rare earth tealeaves producing region that exceeds standard, as Anxi County, in actual production at present, adopt 3 kinds of methods to reduce tealeaves content of rare earth: (1) strengthens generaI investigation, the detection to tea garden soil content of rare earth, also woods of tea is progressively implemented to move back in the high tea place of soil content of rare earth, soil rare earth index is strictly controlled in the tea place of new transformation; (2) strengthen the checking on of fertilizer, the fertilizer that content of rare earth is high is forbidden and is sold and use, and (3) adopt the tender technology of adopting of tealeaves.Because the detection of tealeaves content of rare earth increases to 16 kinds of ree contents, even tealeaves content of rare earth is decreased by the enforcement of above-mentioned measure, but the qualification rate of Oolong tea is still down to 20% left and right, and content of rare earth still cannot be effectively controlled in existing measure.In addition, tender the adopting of tealeaves appropriateness, reduces tea yield, under the situation of tending towards superiority at Famous High-quality Tea tea making cost, may cause tea valency to go up.The at present generally dwarfing (height of tree 30～40cm) of tea district tea tree, though to go into operation in tea place fast, has shortened the transportation range of rare earth in tea tree body, may be in rare earth still exceeds standard Ex post one of the main reasons.Therefore, be badly in need of finding and a kind ofly can root, effectively reduce tealeaves rare earth exceeding standard rate and do not affect the method for tea leaf quality.
Summary of the invention
The object of the present invention is to provide a kind of method that reduces And Development of Tea Shoot Rare Earth Element Contents, method is easy, easy operating, and cost is low, effectively reduces And Development of Tea Shoot Rare Earth Element Contents, greatly improves tealeaves content of rare earth qualification rate.
For achieving the above object, the present invention adopts following technical measures:
A kind of method that reduces And Development of Tea Shoot Rare Earth Element Contents comprises the following steps: plantation rare-earth enrichment plant; Improve tea tree height, suitably tender adopting; Join fertilizer or the agricultural chemicals of executing no or low content of rare earth; Dolomite dust is used in severe acidification tea place.
Concrete steps are as follows:
(1) plantation rare-earth enrichment plant: plant rare-earth enrichment plant in the ranks with tea tree around tea place; Described rare-earth enrichment plant is the plant that overground part ree content meets or exceeds 1000 μ g/g, or overground part rare earth element absorption coefficient meets or exceeds 1 plant; Wherein, the magaphanerophytes of enrichment rare earth plants around tea place, arterial highway or in the ranks, with the rare earth element in the following soil of enrichment tea place 20cm, planting density is with per hectare 140-160 strain, and seeding row spacing is advisable with 10m × 10m; The ground, space such as the herbaceous plant of enrichment rare earth is extensively planted in tea place and sets in the ranks, road is other, terraced wall, with the rare earth element in the above soil of enrichment tea place 20cm;
(2) improve tea tree height, suitably tender adopting: improve tea tree height to more than 70cm, pluck 1 bud 3,4 leaves; Described tea tree be highly tea tree from ground rhizome to the distance treetop;
(3) join fertilizer or the agricultural chemicals of executing no or low content of rare earth; Described low content of rare earth be fertilizer or agricultural chemicals Rare-Earth Content lower than 100mg/kg, comprise fertilizer and biological organic fertilizer;
(4) dolomite dust is used in severe acidification tea place: use 150 object dolomite dust 220kg/hm
2, use in autumn and winter and base manure blending, annual, or executed once every 2 or three years, improve tea garden soil acidity to 4.5～6.0; Described severe acidification tea place is soil acidity tea place below 4.5.
The magaphanerophytes of described enrichment rare earth comprises pubescence cathay hickory, cathay hickory; The herbaceous plant of described enrichment rare earth comprises awns beanstalk, blechnoid, Athyrium yokoscense (Franch. Et Sav.) Chr.
Described fertilizer comprises rapeseed cake fertilizer, compost, chicken manure; Described biological organic fertilizer comprises azotobacter, rhizobium, phosphobacteria, Silicate Bacteria Fertilizer.
Remarkable advantage of the present invention is: method is easy, easy operating, cost is low, do not affecting under the efficient productive target of tealeaves good quality and high output, effectively reduce And Development of Tea Shoot Rare Earth Element Contents, greatly improve tealeaves content of rare earth qualification rate, also help the improvement of soil heavy metals, more can in domestic and international trade, effectively solve at tealeaves from now on the economic loss meeting with because of the rare earth problem of exceeding standard.
Embodiment
A method that reduces And Development of Tea Shoot Rare Earth Element Contents, the steps include:
(1) plantation rare-earth enrichment plant: plant rare-earth enrichment plant in the ranks with tea tree around tea place.Wherein, the magaphanerophytes of enrichment rare earth plants around tea place, arterial highway or in the ranks, with the rare earth element in the following soil of enrichment tea place 20cm, planting density is with per hectare 140-160 strain, seeding row spacing is advisable with 10m × 10m, as pubescence cathay hickory, cathay hickory not only can reduce soil content of rare earth, its fruit walnut also has very high nutritive value and economic worth; The herbaceous plant of enrichment rare earth extensively plant in tea place tree in the ranks, the ground, space such as other, the terraced wall of road, taking the rare earth in the above soil of enrichment tea place 20cm as main, as fern, also can be beneficial to tea place water and soil conservation simultaneously.
Described rare-earth enrichment plant is the plant that overground part ree content meets or exceeds 1000 μ g/g, or overground part rare earth element absorption coefficient meets or exceeds 1 plant.
Described arbor class is pubescence cathay hickory, cathay hickory etc.
Described fern is awns beanstalk, blechnoid, Athyrium yokoscense (Franch. Et Sav.) Chr etc.
(2) improve tea tree height, suitably tender adopting: improve tea tree height to more than 70cm, pluck 1 bud 3,4 leaves.Rare earth element forms complex state form with polysaccharose etc. in tea tree body, its distribution in tea tree body presents the rule of successively decreasing gradually to top from root, by improving tea tree height to extend the transportation range of rare earth element in tree body, in identical breeding time, high And Development of Tea Shoot content of rare earth is lower than the tea tree of downgrading, be equipped with tender the adopting of appropriateness, can reduce to greatest extent young sprout content of rare earth.
Described tea tree be highly tea tree from ground rhizome to the distance treetop.
(3) join fertilizer or the agricultural chemicals of executing no or low content of rare earth.If do not executed or Shaoshi nitrogenous fertilizer, many organic fertilizers or biological organic fertilizer, not only directly reduce tea place rare earth element input amount, also can reduce soil acidification degree, significantly reduces tea place nitrous oxide (N
2o) discharge.
Described low content of rare earth is that fertilizer or agricultural chemicals content of rare earth are lower than 100mg/kg.
Described fertilizer is rapeseed cake fertilizer, compost, chicken manure etc.
Described biological organic fertilizer is azotobacter, rhizobium, phosphobacteria and Silicate Bacteria Fertilizer etc.
(4) dolomite dust etc. is used in severe acidification tea place, uses 150 object dolomite dust (MgCO
3+ CaCO
3) 220kg/hm
2, use in autumn and winter and base manure blending, annual, or executed once every 2 or three years, improve tea garden soil acidity to 4.5～6.0.
Described severe acidification tea place is soil acidity tea place below 4.5.
The present invention can make the content of rare earth in tealeaves be controlled at below 2mg/kg, makes tealeaves content of rare earth reach national rare earth limit standard.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. a method that reduces And Development of Tea Shoot Rare Earth Element Contents, is characterized in that: comprise the following steps: plantation rare-earth enrichment plant; Improve tea tree height, suitably tender adopting; Join fertilizer or the agricultural chemicals of executing no or low content of rare earth; Dolomite dust is used in severe acidification tea place.
2. the method for reduction And Development of Tea Shoot Rare Earth Element Contents according to claim 1, is characterized in that: concrete steps are as follows:
(1) plantation rare-earth enrichment plant: plant rare-earth enrichment plant in the ranks with tea tree around tea place; Described rare-earth enrichment plant is the plant that overground part ree content meets or exceeds 1000 μ g/g, or overground part rare earth element absorption coefficient meets or exceeds 1 plant; Wherein, the magaphanerophytes of enrichment rare earth plants around tea place, arterial highway or in the ranks, with the rare earth element in the following soil of enrichment tea place 20cm, planting density is with per hectare 140-160 strain, and seeding row spacing is advisable with 10m × 10m; The ground, space such as the herbaceous plant of enrichment rare earth is extensively planted in tea place and sets in the ranks, road is other, terraced wall, with the rare earth element in the above soil of enrichment tea place 20cm;
(2) improve tea tree height, suitably tender adopting: improve tea tree height to more than 70cm, pluck 1 bud 3,4 leaves; Described tea tree be highly tea tree from ground rhizome to the distance treetop;
(3) join fertilizer or the agricultural chemicals of executing no or low content of rare earth; Described low content of rare earth be fertilizer or agricultural chemicals Rare-Earth Content lower than 100mg/kg, comprise fertilizer and biological organic fertilizer;
(4) dolomite dust is used in severe acidification tea place: use 150 object dolomite dust 220kg/hm
2, use in autumn and winter and base manure blending, annual, or executed once every 2 or three years, improve tea garden soil acidity to 4.5～6.0; Described severe acidification tea place is soil acidity tea place below 4.5.
3. the method for reduction And Development of Tea Shoot Rare Earth Element Contents according to claim 2, is characterized in that: the magaphanerophytes of described enrichment rare earth comprises pubescence cathay hickory, cathay hickory; The herbaceous plant of described enrichment rare earth comprises awns beanstalk, blechnoid, Athyrium yokoscense (Franch. Et Sav.) Chr.
4. the method for reduction And Development of Tea Shoot Rare Earth Element Contents according to claim 2, is characterized in that: described fertilizer comprises rapeseed cake fertilizer, compost, chicken manure; Described biological organic fertilizer comprises azotobacter, rhizobium, phosphobacteria, Silicate Bacteria Fertilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410178418.1A CN103931402B (en) | 2014-04-30 | 2014-04-30 | A kind of method reducing And Development of Tea Shoot Rare Earth Element Contents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410178418.1A CN103931402B (en) | 2014-04-30 | 2014-04-30 | A kind of method reducing And Development of Tea Shoot Rare Earth Element Contents |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103931402A true CN103931402A (en) | 2014-07-23 |
| CN103931402B CN103931402B (en) | 2015-12-09 |
Family
ID=51179493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410178418.1A Active CN103931402B (en) | 2014-04-30 | 2014-04-30 | A kind of method reducing And Development of Tea Shoot Rare Earth Element Contents |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103931402B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105777214A (en) * | 2016-04-20 | 2016-07-20 | 黄伙水 | Soil improvement agent of reducing rare earth content in tea leaves and effect determination method |
| CN105830690A (en) * | 2016-03-25 | 2016-08-10 | 溧阳市林业工作站 | High-efficient interplanting method for Carya illinoensis and white tea |
| CN109987973A (en) * | 2019-03-13 | 2019-07-09 | 南京师范大学 | A kind of awns beanstalk lime-ash RE microbial fertilizer and the application of the method and its production producing RE microbial fertilizer using rehabilitation plant awns beanstalk |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060213324A1 (en) * | 2003-03-03 | 2006-09-28 | Koji Fujita | Soil conditioner |
| CN102744248A (en) * | 2012-06-08 | 2012-10-24 | 四川农业大学 | Application of Eucalyptus grandis in restoration of soil polluted by rare earth element lanthanum |
-
2014
- 2014-04-30 CN CN201410178418.1A patent/CN103931402B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060213324A1 (en) * | 2003-03-03 | 2006-09-28 | Koji Fujita | Soil conditioner |
| CN102744248A (en) * | 2012-06-08 | 2012-10-24 | 四川农业大学 | Application of Eucalyptus grandis in restoration of soil polluted by rare earth element lanthanum |
Non-Patent Citations (6)
| Title |
|---|
| 北京现代市场经济研究中心: "《中国农业科技种植养殖百科全书（第二卷）》", 31 December 2002, 世图音像电子出版社 * |
| 沈闽聪: "茶园稀土污染修复的技术途径", 《福建茶业》 * |
| 白婷婷: "安溪乌龙茶农药残留规律与稀土污染成因探究", 《中国优秀硕士学位论文全文数据库 农业科技辑》 * |
| 白婷婷: "安溪乌龙茶农药残留规律与稀土污染成因探究", 《中国优秀硕士学位论文全文数据库 农业科技辑》, no. 1, 15 January 2012 (2012-01-15), pages 046 - 29 * |
| 郭琳: "茶园土壤的酸化与防治", 《茶叶科学技术》 * |
| 魏正贵等: "稀土元素超积累植物研究进展", 《中国稀土学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105830690A (en) * | 2016-03-25 | 2016-08-10 | 溧阳市林业工作站 | High-efficient interplanting method for Carya illinoensis and white tea |
| CN105777214A (en) * | 2016-04-20 | 2016-07-20 | 黄伙水 | Soil improvement agent of reducing rare earth content in tea leaves and effect determination method |
| CN109987973A (en) * | 2019-03-13 | 2019-07-09 | 南京师范大学 | A kind of awns beanstalk lime-ash RE microbial fertilizer and the application of the method and its production producing RE microbial fertilizer using rehabilitation plant awns beanstalk |
| CN109987973B (en) * | 2019-03-13 | 2022-08-26 | 南京师范大学 | Method for producing rare earth micro-fertilizer by using remediation plant dicranopteris pedata, dicranopteris pedata ash rare earth micro-fertilizer produced by method and application of dicranopteris pedata ash rare earth micro-fertilizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103931402B (en) | 2015-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102919026B (en) | Tea garden greenhouse gas nitrous oxide emission reduction method | |
| CN102771353B (en) | High-efficiency tea-oil tree forest building method | |
| CN103894401B (en) | A kind of plant restoration method administering the plumbous arsenic combined contamination soil of cadmium | |
| CN103299798A (en) | Method for planting selenium-enriched organic Wuliqing teas | |
| CN102939883B (en) | Novel T-shaped grape shelf and method using shelf to cultivate grape | |
| CN103601584A (en) | Water-soluble starch synergistic leaf fertilizer and preparation method thereof | |
| CN106034603A (en) | Planting method of gold bud tea | |
| CN103493707A (en) | Passion fruit planting method | |
| CN103931402B (en) | A kind of method reducing And Development of Tea Shoot Rare Earth Element Contents | |
| CN103553844A (en) | Special fertilizer for mulberries | |
| CN107318903A (en) | A kind of Edgeworthia chrysantha derivant and a kind of agalloch eaglewood Edgeworthia chrysantha method | |
| CN103444409B (en) | Method for rapidly improving soil fertility of peach orchard | |
| WO2018014169A1 (en) | Method for preventing and controlling citrus greening disease and yellows disease by applying biological carbon fertilizer | |
| CN103843576A (en) | High-efficiency black gastrodia elata culturing method | |
| CN103069985A (en) | Method for improving yield and quality of grapes through in-situ intercropping | |
| CN104402638A (en) | Method for preparing special leaf fertilizer for mangoes from ageratina adenophora | |
| CN109417979A (en) | A method of in intercropping in garden Chinese medicine | |
| CN103766189B (en) | A kind of grape cultivation method of efficient circulation result | |
| CN105165354A (en) | High-quality dark green tea high-yield planting method | |
| CN105523791A (en) | Organic fertilizer for tea and preparation method of organic fertilizer | |
| CN108863464A (en) | A kind of fertilizer and preparation method thereof for improveing citrus Orchard Soil | |
| Cirigliano et al. | Combined effect of irrigation and compost application on Montepulciano berry composition in a volcanic environment of Latium region (central Italy) | |
| CN103843638A (en) | Method for increasing afforestation survival rate of bare-rooted seedlings of apocaryas | |
| CN113875471A (en) | Selenium-rich high-quality cultivation method for summer tea | |
| CN103804058B (en) | A kind of Nanfeng orange quality-improving special fertilizer and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |