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Effects And Regulations On Quality Of Wuyi Cliff Tea Of Soil Condition

Posted on:2006-01-21Degree:MasterType:Thesis
Country:ChinaCandidate:Q B ChenFull Text:PDF
GTID:2133360155962773Subject:Tea
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Wuyi cliff tea is divided zhenyan tea,banyan tea and waishan tea. At the same condition of variety, age of tea, season and processing technology, difference of tea quality in places is very obvious. The eaaay studied from angle of cultivation science that ecological condition affects quality of Wuyi cliff tea, and experiment of soil nutrients was conducted. Hope to find the factors what affect quality. Result showed:One-. On difference of average content of main biochemical compounds of quality of Shuixian in fields of Zhenyan,. Waishan, the difference of polyphenols, coffeien, soluble carbohydrate, catechin is not obvious; the difference of water extracts is obvious, the difference of amino acid, polyphenols/amino acid is very obvious. The rule of difference of content of main biochemical compounds of Rougui is not obvious. Quality of Wuyi cliff tea is related to not only the content of main biochemical compounds but also ratio. The different breeds of tea have different targets of regulation.Two, In average content of elements of chemical environment of soil in Zhenyan Waishan, the difference of whole N, whole P, whole Mn, organic matter is not obvious, the difference of applying Ca is obvious. The difference of whole K, whole Zn, applying Mg, pH number is very obvious. In average content of nutrients of fresh leaves in difference places, the difference of content of whole N, whole P, whole K, whole Ca, whole B is not obvious; the difference of whole Mn, whole Mg is very obvious..Three , Correlation and difference among chemistry environment -content of nutrients of fresh leaves-main biochemical compounds, in zhenyan fields, between content of whole Mn in fresh leaves and content ofwhole Zn in soil, their correlation is obvious positive; between content of whole K in fresh leaves and content of whole K in soil, content of whole N in fresh leaves and content of applying Ca in soil, their correlation are obvious negative; between the content of catechin in fresh leaves and content of whole B in soil, correlation is obvious positive; between polyphenols/amino acid and content of whole N in fresh leaves, correlation is obvious positive; others' correlation are not obvious. In waishan fields, between content of whole Zn in fresh leaves and pH number in soil, correlation is obvious positive; between content of whole Ca in fresh leaves and content of whole K in soil, correlation is obvious negative; between soluble carbohydrate and content of K in fresh leaves, correlation is obvious negative; between content of polyphenols and content of whole Mn, correlation is obvious positive, others' correlation are not obvious. On difference of correlation coefficient in different places, between whole N in fresh leaves and content of applying Ca in soil, between whole N in fresh leaves and content of applying Mg in soil, between content whole N in fresh leaves and pH number in soil, between content of soluble carbohydrate and content of whole N in fresh leaves, the difference of their' correlation coefficient are obvious, they don't use the same correlation coefficient, others can use the same correlation coefficient after calculating.Fom\ The mellow matters are main aroma matter in Wuyi cliff tea fresh leaves. The different breeds of tea have different main aroma, content of Ethanol is the largest in fesh leaves of Shuixian,content of l,6,10-dodecatrien-3-ol,3,7,ll-trimethyl is the largest in fesh leaves of Rougui. Total of aromatic compounds has this tendency: zhenyan>banyan>waishan,the difference of breeds is obvious,quantity of Rougui is quantity of Shuixianabout 2. Because of unique aromatic compounds and different content and ratio of the same aroma, tea in different places has unique aroma pattern.In chemical environment of soil, between content of l,6,10-dodecatrien-3-ol,3,7,ll-trimethyl and content of whole K in soil, between content of Ethanol and pH number, their correlation are obvious positive, between Methyl salicylate, Acetic acid and content of organic matter, their correlation are obvious negative; In nutrients of fresh leaves, between 3-Butene-2-one,4-[2,6,6-trimethyl-l-cycl and content of whole Ca, between Cis-Linaloloxide 2,6-Octadiene-l-ol,3,7-dimethyl(E) and content of whole Mg their correlation are obvious positive. Different measures will be carried to regulation of soil and fresh leaves to improve total of aroma.Five<. Experiment of different treatment of Shuixian toil nuitriment elements showed that the best treatment of different economic characters and main biochemical compounds is different, some best treatment are just treatment of experiment, some aren't treatment of experiment. Refer to content of amino acid, polyphenols/amino acid, the experiment of soil nutrients regulation need to continueOn reguration experiment of Rougui toil nuitriment elements, compared fertilizes treatment with CK, content of polyphenols, amino acid and polyphenols/amino acid have larger or smaller; content of water extracts and catechin is smaller in spring tea,; content of polyphenols, water extracts and catechin are larger, content of amino acid is larger or equal in summer tea,, Contents of soluble carbohydrate is smaller in spring tea and summer tea. The difference of content of main biochemical compounds aren't obvious except content of amino acid of summer tea.
Keywords/Search Tags:Soil condition, Wuyi cliff tea, Shuixian, Rougui, Field experimentation
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