Summary on Nitrogen (N), Phosphorus (P), Potassium (K) and Tea Quality

doi:10.11924/j.issn.1000-6850.050162

Chin Agric Sci Bull ›› 2005, Vol. 21 ›› Issue (1) : 62-62. DOI: 10.11924/j.issn.1000-6850.050162

Li Jing, Xia Jianguo

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Abstract

Tea is an important cash crop of our country. Tea-Polyphenols, catechins, amino acid and theine are the elements of tea quality that are widely accepted in the world. Nitrogen (N), phosphorus (P), potassium (K) are indispensable to tea growth. There is closely connection between them and form and content of the elements of tea quality. Properly using nitrogen help to enhance tea quality，but scarcity or excessiveness of N is disadvantageous to it. Tea prefer NH4+—N to NO3-—N. Phosphorus can promote the contents of flavone，tea-Polyphenols， amino acid and theine. Potassium can promote the contents of tea-Polyphenols, amino acid and catechins. Different potassium types have different influence on tea quality. N，P and K must be used in proportion for improvement of tea quality. Only employ one of them is a great disadvantage to tea quality. We discuss the connections between N， P， K and tea quality in order to provide some advice for tea fertilization in this article.

Key words

Tea;Nitrogen;Phosphorus;Potassium;Tea quality

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Li Jing, Xia Jianguo. Summary on Nitrogen (N), Phosphorus (P), Potassium (K) and Tea Quality[J]. Chinese Agricultural Science Bulletin. 2005, 21(1): 62-62 https://doi.org/10.11924/j.issn.1000-6850.050162

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