Foliar N Application on Tea Plant at Its Dormancy Stage Increases the N Concentration of Mature Leaves and Improves the Quality and Yield of Spring Tea
Over 30% of the Chinese tea plantation is supplied with excess fertilizer, especially nitrogen (N) fertilizer. Whether or not foliar N application on tea plants at the dormancy stage could improve the quality of spring tea and be a complementary strategy to reduce soil fertilization level remains un...
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| Format: | Article |
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Frontiers Media S.A.
2021-10-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2021.753086/full |
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| author | Mei-Ya Liu Mei-Ya Liu Dandan Tang Dandan Tang Yuanzhi Shi Yuanzhi Shi Lifeng Ma Lifeng Ma Qunfeng Zhang Qunfeng Zhang Jianyun Ruan Jianyun Ruan |
| author_facet | Mei-Ya Liu Mei-Ya Liu Dandan Tang Dandan Tang Yuanzhi Shi Yuanzhi Shi Lifeng Ma Lifeng Ma Qunfeng Zhang Qunfeng Zhang Jianyun Ruan Jianyun Ruan |
| author_sort | Mei-Ya Liu |
| collection | DOAJ |
| description | Over 30% of the Chinese tea plantation is supplied with excess fertilizer, especially nitrogen (N) fertilizer. Whether or not foliar N application on tea plants at the dormancy stage could improve the quality of spring tea and be a complementary strategy to reduce soil fertilization level remains unclear. In this study, the effects of foliar N application on tea plants were investigated by testing the types of fertilizers and their application times, and by applying foliar N under a reduced soil fertilization level using field and 15N-labeling pot experiments. Results showed that the foliar N application of amino acid liquid fertilizer two times at the winter dormancy stage was enough to significantly increase the N concentration of the mature leaves and improved the quality of spring tea. The foliar application of 2% urea or liquid amino acid fertilizer two times at the winter dormancy stage and two times at the spring dormancy stage showed the best performance in tea plants among the other foliar N fertilization methods, as it reduced the soil fertilization levels in tea plantations without decreasing the total N concentration of the mature leaves or deteriorating the quality of spring tea. Therefore, foliar N application on tea plants at its dormancy stage increases the N concentration of the mature leaves, improves the quality and yield of spring tea, and could be a complementary strategy to reduce soil fertilization levels. |
| first_indexed | 2024-12-22T15:50:43Z |
| format | Article |
| id | doaj.art-1e40e080a06a4dd18448080979394ead |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-22T15:50:43Z |
| publishDate | 2021-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj.art-1e40e080a06a4dd18448080979394ead2022-12-21T18:20:54ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2021-10-011210.3389/fpls.2021.753086753086Foliar N Application on Tea Plant at Its Dormancy Stage Increases the N Concentration of Mature Leaves and Improves the Quality and Yield of Spring TeaMei-Ya Liu0Mei-Ya Liu1Dandan Tang2Dandan Tang3Yuanzhi Shi4Yuanzhi Shi5Lifeng Ma6Lifeng Ma7Qunfeng Zhang8Qunfeng Zhang9Jianyun Ruan10Jianyun Ruan11Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, ChinaKey Laboratory of Tea Plant Biology and Resources Utilization (Ministry of Agriculture and Rural Affairs), Hangzhou, ChinaTea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, ChinaKey Laboratory of Tea Plant Biology and Resources Utilization (Ministry of Agriculture and Rural Affairs), Hangzhou, ChinaTea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, ChinaKey Laboratory of Tea Plant Biology and Resources Utilization (Ministry of Agriculture and Rural Affairs), Hangzhou, ChinaTea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, ChinaKey Laboratory of Tea Plant Biology and Resources Utilization (Ministry of Agriculture and Rural Affairs), Hangzhou, ChinaTea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, ChinaKey Laboratory of Tea Plant Biology and Resources Utilization (Ministry of Agriculture and Rural Affairs), Hangzhou, ChinaTea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, ChinaKey Laboratory of Tea Plant Biology and Resources Utilization (Ministry of Agriculture and Rural Affairs), Hangzhou, ChinaOver 30% of the Chinese tea plantation is supplied with excess fertilizer, especially nitrogen (N) fertilizer. Whether or not foliar N application on tea plants at the dormancy stage could improve the quality of spring tea and be a complementary strategy to reduce soil fertilization level remains unclear. In this study, the effects of foliar N application on tea plants were investigated by testing the types of fertilizers and their application times, and by applying foliar N under a reduced soil fertilization level using field and 15N-labeling pot experiments. Results showed that the foliar N application of amino acid liquid fertilizer two times at the winter dormancy stage was enough to significantly increase the N concentration of the mature leaves and improved the quality of spring tea. The foliar application of 2% urea or liquid amino acid fertilizer two times at the winter dormancy stage and two times at the spring dormancy stage showed the best performance in tea plants among the other foliar N fertilization methods, as it reduced the soil fertilization levels in tea plantations without decreasing the total N concentration of the mature leaves or deteriorating the quality of spring tea. Therefore, foliar N application on tea plants at its dormancy stage increases the N concentration of the mature leaves, improves the quality and yield of spring tea, and could be a complementary strategy to reduce soil fertilization levels.https://www.frontiersin.org/articles/10.3389/fpls.2021.753086/fullfoliar N applicationdormancy stagetotal Namino acidpolyphenoltea plant |
| spellingShingle | Mei-Ya Liu Mei-Ya Liu Dandan Tang Dandan Tang Yuanzhi Shi Yuanzhi Shi Lifeng Ma Lifeng Ma Qunfeng Zhang Qunfeng Zhang Jianyun Ruan Jianyun Ruan Foliar N Application on Tea Plant at Its Dormancy Stage Increases the N Concentration of Mature Leaves and Improves the Quality and Yield of Spring Tea Frontiers in Plant Science foliar N application dormancy stage total N amino acid polyphenol tea plant |
| title | Foliar N Application on Tea Plant at Its Dormancy Stage Increases the N Concentration of Mature Leaves and Improves the Quality and Yield of Spring Tea |
| title_full | Foliar N Application on Tea Plant at Its Dormancy Stage Increases the N Concentration of Mature Leaves and Improves the Quality and Yield of Spring Tea |
| title_fullStr | Foliar N Application on Tea Plant at Its Dormancy Stage Increases the N Concentration of Mature Leaves and Improves the Quality and Yield of Spring Tea |
| title_full_unstemmed | Foliar N Application on Tea Plant at Its Dormancy Stage Increases the N Concentration of Mature Leaves and Improves the Quality and Yield of Spring Tea |
| title_short | Foliar N Application on Tea Plant at Its Dormancy Stage Increases the N Concentration of Mature Leaves and Improves the Quality and Yield of Spring Tea |
| title_sort | foliar n application on tea plant at its dormancy stage increases the n concentration of mature leaves and improves the quality and yield of spring tea |
| topic | foliar N application dormancy stage total N amino acid polyphenol tea plant |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2021.753086/full |
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