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Temporal variation in nutrient requirements of tea (Camellia sinensis) in China based on QUEFTS analysis

Authors :
Yu Li
Xinpeng Xu
Ping He
Nan Zheng
Qingxu Ma
Lianghuan Wu
Sheng Tang
Xuan Zhou
Taiming Jiang
Han Xiao
Liu Yanling
Source :
Scientific Reports, Scientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
Publication Year :
2020
Publisher :
Nature Publishing Group UK, 2020.

Abstract

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 1000 kg spring tea (based on one bud with two young expanding leaves) required 12.2 kg nitrogen (N), 1.2 kg phosphorus (P), and 3.9 kg potassium (K), and the corresponding internal efficiencies (IEs) for N, P, and K were 82.0, 833.3, and 256.4 kg kg−1. To produce 1000 kg summer tea, 9.1 kg N, 0.8 kg P, and 3.1 kg K were required, and the corresponding IEs for N, P, and K were 109.9, 1250.0, and 322.6 kg kg−1. For autumn tea, 8.8 kg N, 1.0 kg P, and 3.2 kg K were required to produce 1000 kg tea, and the corresponding IEs for N, P, and K were 113.6, 1000.0, and 312.5 kg kg−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.

Details

Language :
English
ISSN :
20452322
Volume :
10
Database :
OpenAIRE
Journal :
Scientific Reports
Accession number :
edsair.doi.dedup.....a9ca248ebe8c3e05649cd055d6c3f62c