Nitrogen Utilization and Loss of the Tea Plantation System on Sloped Farmland: A Short-Term Response to Substitution with Organic Fertilizer
(1) Background: Excessive nitrogen (N) fertilizer application in tea plantations leads to challenges such as soil acidification and nitrogen loss, impending the sustainable development of the plantation system. Yet, there is a lack of research on blended fertilization strategies, and limited data re...
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MDPI AG
2024-02-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/14/2/392 |
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| author | Yingliang Yu Yafei Zhang Bei Yang Cong Qian Yizhi Wang Taifeng Chen Xuemei Han Linzhang Yang Lihong Xue |
| author_facet | Yingliang Yu Yafei Zhang Bei Yang Cong Qian Yizhi Wang Taifeng Chen Xuemei Han Linzhang Yang Lihong Xue |
| author_sort | Yingliang Yu |
| collection | DOAJ |
| description | (1) Background: Excessive nitrogen (N) fertilizer application in tea plantations leads to challenges such as soil acidification and nitrogen loss, impending the sustainable development of the plantation system. Yet, there is a lack of research on blended fertilization strategies, and limited data regarding N loss when substituting with organic fertilizer. (2) Methods: A year-long field monitoring experiment was conducted to evaluate the effects of substituting compound fertilizer with organic fertilizer, specifically with respect to runoff N loss and uptake of chemical fertilizer N by tea trees. (3) Results: The annual runoff N loss ranged from 0.16 to 0.57 kg·hm<sup>−2</sup> and accounted for a mere 0.22–0.48% of N from fertilizer applications. Substitution with organic fertilizer reduced runoff N loss by 21–53% and improved the tea tree utilization efficiency of chemical fertilizer N from 16% to 27%. A 50% organic fertilizer substitution (based on the amount of N) promoted a net soil N mineralization rate, creating an ammonium-rich environment favored by tea trees. (4) Conclusions: The positive effects of partially substituting N fertilizer with organic fertilizer in tea plantation systems on both N utilization efficiency and N loss were confirmed. If conditions permit, the study team would aim to expand the temporal scope of the study, and to investigate the impact of organic fertilizer substitution on N loss under various precipitation intensities. |
| first_indexed | 2024-03-07T22:45:53Z |
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| id | doaj.art-ab7c75fa82d5442f8bc9c667da8a5227 |
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| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-07T22:45:53Z |
| publishDate | 2024-02-01 |
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| series | Agronomy |
| spelling | doaj.art-ab7c75fa82d5442f8bc9c667da8a52272024-02-23T15:04:23ZengMDPI AGAgronomy2073-43952024-02-0114239210.3390/agronomy14020392Nitrogen Utilization and Loss of the Tea Plantation System on Sloped Farmland: A Short-Term Response to Substitution with Organic FertilizerYingliang Yu0Yafei Zhang1Bei Yang2Cong Qian3Yizhi Wang4Taifeng Chen5Xuemei Han6Linzhang Yang7Lihong Xue8Key Laboratory of Agricultural Environment of the Lower Reaches of the Yangtze River, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, ChinaSchool of Environment and Ecology, Jiangnan University, Wuxi 214122, ChinaKey Laboratory of Agricultural Environment of the Lower Reaches of the Yangtze River, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, ChinaKey Laboratory of Agricultural Environment of the Lower Reaches of the Yangtze River, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, ChinaKey Laboratory of Agricultural Environment of the Lower Reaches of the Yangtze River, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, ChinaWuzhong District Agriculture and Rural Bureau, Suzhou 215104, ChinaWuzhong District Agriculture and Rural Bureau, Suzhou 215104, ChinaKey Laboratory of Agricultural Environment of the Lower Reaches of the Yangtze River, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, ChinaKey Laboratory of Agricultural Environment of the Lower Reaches of the Yangtze River, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China(1) Background: Excessive nitrogen (N) fertilizer application in tea plantations leads to challenges such as soil acidification and nitrogen loss, impending the sustainable development of the plantation system. Yet, there is a lack of research on blended fertilization strategies, and limited data regarding N loss when substituting with organic fertilizer. (2) Methods: A year-long field monitoring experiment was conducted to evaluate the effects of substituting compound fertilizer with organic fertilizer, specifically with respect to runoff N loss and uptake of chemical fertilizer N by tea trees. (3) Results: The annual runoff N loss ranged from 0.16 to 0.57 kg·hm<sup>−2</sup> and accounted for a mere 0.22–0.48% of N from fertilizer applications. Substitution with organic fertilizer reduced runoff N loss by 21–53% and improved the tea tree utilization efficiency of chemical fertilizer N from 16% to 27%. A 50% organic fertilizer substitution (based on the amount of N) promoted a net soil N mineralization rate, creating an ammonium-rich environment favored by tea trees. (4) Conclusions: The positive effects of partially substituting N fertilizer with organic fertilizer in tea plantation systems on both N utilization efficiency and N loss were confirmed. If conditions permit, the study team would aim to expand the temporal scope of the study, and to investigate the impact of organic fertilizer substitution on N loss under various precipitation intensities.https://www.mdpi.com/2073-4395/14/2/392organic fertilizerteanitrogenrunoffutilization efficiency |
| spellingShingle | Yingliang Yu Yafei Zhang Bei Yang Cong Qian Yizhi Wang Taifeng Chen Xuemei Han Linzhang Yang Lihong Xue Nitrogen Utilization and Loss of the Tea Plantation System on Sloped Farmland: A Short-Term Response to Substitution with Organic Fertilizer Agronomy organic fertilizer tea nitrogen runoff utilization efficiency |
| title | Nitrogen Utilization and Loss of the Tea Plantation System on Sloped Farmland: A Short-Term Response to Substitution with Organic Fertilizer |
| title_full | Nitrogen Utilization and Loss of the Tea Plantation System on Sloped Farmland: A Short-Term Response to Substitution with Organic Fertilizer |
| title_fullStr | Nitrogen Utilization and Loss of the Tea Plantation System on Sloped Farmland: A Short-Term Response to Substitution with Organic Fertilizer |
| title_full_unstemmed | Nitrogen Utilization and Loss of the Tea Plantation System on Sloped Farmland: A Short-Term Response to Substitution with Organic Fertilizer |
| title_short | Nitrogen Utilization and Loss of the Tea Plantation System on Sloped Farmland: A Short-Term Response to Substitution with Organic Fertilizer |
| title_sort | nitrogen utilization and loss of the tea plantation system on sloped farmland a short term response to substitution with organic fertilizer |
| topic | organic fertilizer tea nitrogen runoff utilization efficiency |
| url | https://www.mdpi.com/2073-4395/14/2/392 |
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