Effects of Tea Plant Varieties with High- and Low-Nutrient Efficiency on Nutrients in Degraded Soil
Tea plants are widely planted in tropical and subtropical regions globally, especially in southern China. The high leaching and strong soil acidity in these areas, in addition to human factors (e.g., tea picking and inappropriate fertilization methods) aggravate the lack of nutrients in tea garden s...
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MDPI AG
2023-02-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/12/4/905 |
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| author | Li Ruan Xin Li Yuhang Song Jianwu Li Kumuduni Niroshika Palansooriya |
| author_facet | Li Ruan Xin Li Yuhang Song Jianwu Li Kumuduni Niroshika Palansooriya |
| author_sort | Li Ruan |
| collection | DOAJ |
| description | Tea plants are widely planted in tropical and subtropical regions globally, especially in southern China. The high leaching and strong soil acidity in these areas, in addition to human factors (e.g., tea picking and inappropriate fertilization methods) aggravate the lack of nutrients in tea garden soil. Therefore, improving degraded tea-growing soil is urgently required. Although the influence of biological factors (e.g., tea plant variety) on soil nutrients has been explored in the existing literature, there are few studies on the inhibition of soil nutrient degradation using different tea plant varieties. In this study, two tea plant varieties with different nutrient efficiencies (high-nutrient-efficiency variety: Longjing43 (LJ43); low-nutrient-efficiency variety: Liyou002 (LY002)) were studied. Under a one-side fertilization mode of two rows and two plants, the tea plant growth status, soil pH, and available nutrients in the soil profiles were analyzed, aiming to reveal the improvement of degraded soil using different tea varieties. The results showed that (1) differences in the phenotypic features of growth (such as dry tea yield, chlorophyll, leaf nitrogen (N), phosphorus (P), and potassium (K) content) between the fertilization belts in LJ43 (LJ43-near and LJ43-far) were lower than those in LY002. (2) RDA results showed that the crucial soil nutrient factors which determine the features of tea plants included available P, slowly available K, and available K. Moreover, acidification was more serious near the fertilization belt. The pH of the soil near LJ43 was higher than that near LY002, indicating an improvement in soil acidification. (3) Soil nutrient heterogeneity between fertilization belts in LJ43 (LJ43-near and LJ43-far) was lower than in LY002. In conclusion, the long-term one-side fertilization mode of two rows and two plants usually causes spatial heterogeneities in soil nutrients and aggravates soil acidification. However, LJ43 can reduce the nutrient heterogeneities and soil acidification, which is probably due to the preferential development of secondary roots. These results are helpful in understanding the influence of tea plant variety on improving soil nutrients and provide a relevant scientific reference for breeding high-quality tea varieties, improving the state of degraded soil and maintaining soil health. |
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| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-11T08:15:21Z |
| publishDate | 2023-02-01 |
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| spelling | doaj.art-eab937ac95b348969fbd8636306d58682023-11-16T22:49:02ZengMDPI AGPlants2223-77472023-02-0112490510.3390/plants12040905Effects of Tea Plant Varieties with High- and Low-Nutrient Efficiency on Nutrients in Degraded SoilLi Ruan0Xin Li1Yuhang Song2Jianwu Li3Kumuduni Niroshika Palansooriya4Institute of Sericulture and Tea, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, ChinaInstitute of Carbon Neutrality, Zhejiang A&F University, Hangzhou 311300, ChinaInstitute of Carbon Neutrality, Zhejiang A&F University, Hangzhou 311300, ChinaInstitute of Sericulture and Tea, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, ChinaState Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, ChinaTea plants are widely planted in tropical and subtropical regions globally, especially in southern China. The high leaching and strong soil acidity in these areas, in addition to human factors (e.g., tea picking and inappropriate fertilization methods) aggravate the lack of nutrients in tea garden soil. Therefore, improving degraded tea-growing soil is urgently required. Although the influence of biological factors (e.g., tea plant variety) on soil nutrients has been explored in the existing literature, there are few studies on the inhibition of soil nutrient degradation using different tea plant varieties. In this study, two tea plant varieties with different nutrient efficiencies (high-nutrient-efficiency variety: Longjing43 (LJ43); low-nutrient-efficiency variety: Liyou002 (LY002)) were studied. Under a one-side fertilization mode of two rows and two plants, the tea plant growth status, soil pH, and available nutrients in the soil profiles were analyzed, aiming to reveal the improvement of degraded soil using different tea varieties. The results showed that (1) differences in the phenotypic features of growth (such as dry tea yield, chlorophyll, leaf nitrogen (N), phosphorus (P), and potassium (K) content) between the fertilization belts in LJ43 (LJ43-near and LJ43-far) were lower than those in LY002. (2) RDA results showed that the crucial soil nutrient factors which determine the features of tea plants included available P, slowly available K, and available K. Moreover, acidification was more serious near the fertilization belt. The pH of the soil near LJ43 was higher than that near LY002, indicating an improvement in soil acidification. (3) Soil nutrient heterogeneity between fertilization belts in LJ43 (LJ43-near and LJ43-far) was lower than in LY002. In conclusion, the long-term one-side fertilization mode of two rows and two plants usually causes spatial heterogeneities in soil nutrients and aggravates soil acidification. However, LJ43 can reduce the nutrient heterogeneities and soil acidification, which is probably due to the preferential development of secondary roots. These results are helpful in understanding the influence of tea plant variety on improving soil nutrients and provide a relevant scientific reference for breeding high-quality tea varieties, improving the state of degraded soil and maintaining soil health.https://www.mdpi.com/2223-7747/12/4/905tea plant varietiessoil nutrientsoil degradationsoil profile |
| spellingShingle | Li Ruan Xin Li Yuhang Song Jianwu Li Kumuduni Niroshika Palansooriya Effects of Tea Plant Varieties with High- and Low-Nutrient Efficiency on Nutrients in Degraded Soil Plants tea plant varieties soil nutrient soil degradation soil profile |
| title | Effects of Tea Plant Varieties with High- and Low-Nutrient Efficiency on Nutrients in Degraded Soil |
| title_full | Effects of Tea Plant Varieties with High- and Low-Nutrient Efficiency on Nutrients in Degraded Soil |
| title_fullStr | Effects of Tea Plant Varieties with High- and Low-Nutrient Efficiency on Nutrients in Degraded Soil |
| title_full_unstemmed | Effects of Tea Plant Varieties with High- and Low-Nutrient Efficiency on Nutrients in Degraded Soil |
| title_short | Effects of Tea Plant Varieties with High- and Low-Nutrient Efficiency on Nutrients in Degraded Soil |
| title_sort | effects of tea plant varieties with high and low nutrient efficiency on nutrients in degraded soil |
| topic | tea plant varieties soil nutrient soil degradation soil profile |
| url | https://www.mdpi.com/2223-7747/12/4/905 |
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