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Journal of Tea Science ›› 2020, Vol. 40 ›› Issue (6): 751-757.doi: 10.13305/j.cnki.jts.2020.06.004

• Research Paper • Previous Articles     Next Articles

Effect of Different Tea Cultivars on Biomass Accumulation and Nutrient Distribution

ZHU Yun, YOU Xueqin, YI Xiaoyun, NI Kang, RUAN Jianyun*   

  1. Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
  • Received:2019-11-26 Revised:2020-07-29 Online:2020-12-15 Published:2020-12-10

Abstract: In order to clarify the characteristics of biomass accumulation and nutrient distribution of different tea cultivars, the 10-year-old tea gardens of Longjing 43, Yabukita and Kyomidori cultivars were selected, and the biomass and nutrient distribution among aboveground remain, young shoots, pruning and litters were investigated. The results show that Longjing 43 had a larger biomass of aboveground remain and young shoots, followed by Yabukita and Kyomidori. The biomass of the pruning shows an opposite trend, but there was no significant difference among the cultivars. The five main nutrient concentrations in leaves were higher than those in stem. However, their distributions in young shoots, pruning and litters were related to the cultivars. The nutrient accumulation in aboveground remain of Longjing43 was the highest, followed by Yabukita and Kyomidori. While, the total nutrient removed by young shoots, pruning and litters were Kyomidori>Longjing 43>Yabukita. Among them, the nutrient accumulation in young shoots of Longjing43 accounted for 63.7%-85.0% of the total aboveground remain, which was 37.4%-60.2% for Yabukita. Pruning was the chief form of substances and nutrients transformation in Kyomidori, so the nutrient accumulation of pruning accounted for 66.6%-91.2% of the total aboveground remain. This study is beneficial to formulate targeted nutrient management strategies according to cultivars advantages and tea garden production mode. It is also providing a basis for optimizing the fertilization and improving the efficiency of nutrient utilization.

Key words: cultivars, biomass, nutrient, young shoots, pruning, litter

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