Temporal variation in nutrient requirements of tea (Camellia sinensis) in China based on QUEFTS analysis
文献类型： 外文期刊
作者： Tang, Sheng 1 ; Liu, Yanling 3 ; Zheng, Nan 1 ; Li, Yu 3 ; Ma, Qingxu 1 ; Xiao, Han 1 ; Zhou, Xuan 4 ; Xu, Xinpeng 5 ; Jiang 1 ;
作者机构： 1.Zhejiang Univ, Coll Environm & Resource Sci, Zhejiang Prov Key Lab Agr Resources & Environm, Hangzhou 310058, Peoples R China
2.Kingenta Ecol Engn Grp Co Ltd, State Key Lab Nutr Resources Integrated Utilizat, Linyi 276000, Shandong, Peoples R China
3.Guizhou Acad Agr Sci, Inst Soil & Fertilizer, Guiyang 550006, Peoples R China
4.Hunan Acad Agr Sci, Inst Soil & Fertilizer, Changsha 410125, Peoples R China
5.Chinese Acad Agr Sci CAAS, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Crop Nutr & Fertilizat, Beijing 100081, Peoples R China
6.Guizhou Acad Agr Sci, Inst Tea Res, Guiyang 550006, Peoples R China
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.379； 五年影响因子：5.133 ）
ISSN： 2045-2322
年卷期： 2020 年 10 卷 1 期
页码：
收录情况： SCI
摘要： Fertilisation datasets collected from field experiments (n=21) in tea-producing areas from 2016 to 2018 were used to build a quantitative evaluation of the fertility of tropical soils (QUEFTS) model to estimate nutrient uptake of tea plants, and to investigate relationships between tea yield and nutrient accumulation. The production of 1000kg spring tea (based on one bud with two young expanding leaves) required 12.2kg nitrogen (N), 1.2kg phosphorus (P), and 3.9kg potassium (K), and the corresponding internal efficiencies (IEs) for N, P, and K were 82.0, 833.3, and 256.4kgkg(-1). To produce 1000kg summer tea, 9.1kgN, 0.8kgP, and 3.1kgK were required, and the corresponding IEs for N, P, and K were 109.9, 1250.0, and 322.6kgkg(-1). For autumn tea, 8.8kgN, 1.0kgP, and 3.2kgK were required to produce 1000kg tea, and the corresponding IEs for N, P, and K were 113.6, 1000.0, and 312.5kgkg(-1). Field validation experiments performed in 2019 suggested that the QUEFTS model can appropriately estimate nutrient uptake of tea plants at a certain yield and contribute to developing a fertiliser recommendation strategy for tea production.
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