山东农业大学学报（自然科学版）2025，Vol.56Issue(6)：956-966,11.DOI:10.3969/j.issn.1000-2324.2025.06.006
茶树修剪物及其生物炭施用对茶树生长的影响
Effects of Tea Plant Pruning Materials and Their Biochar Application on Tea Plant Growth
摘要
Abstract
The annual biomass of pruned branches and leaves of tea reaches 8-9 t·hm-2,which significantly influences the material cycle of tea garden ecosystems.However,research remains limited regarding the effects of pruned tea branches and leaves and their different utilization methods on tea growth,as well as their regulatory mechanisms.This study investigates the effects of two application methods on tea tree growth through pot experiments—directly returning tea pruning Materials to soil versus applying them after processing into biochar,and analyzes the regulation mechanism based on soil physical and chemical properties.This study sets three treatments:T1(control treatment),T2(application of tea pruning materials),T3(application of biochar).The results show that the treatments with tea pruning materials and their biochar significantly promote tea growth.Specifically,under the T2 and T3 treatments,the leaf biomass,stem biomass their biochar significantly promote tea growth.Specifically,under the T2 and T3 treatments,the leaf biomass,stem biomass and total biomass of tea plants are significantly higher than those in the control treatment,with the increase rates reaching 18.5%-21.2%,15.9%-17.8%and 18.1%-18.3%,respectively.In addition,the biochar treatment significantly promotes the root growth of tea plants.Compared with the control treatment,the total root length,root density and root tip number of tea plants treated with biochar increase by 41.3%,41.3%and 73.4%respectively.Both the tea pruning materials treatment and the biochar treatment significantly improve soil physical and chemical indexes,with soil pH,inorganic nitrogen,available phosphorus and available potassium increasing by 7.8%-13.8%,25.2%-176.1%,15.4%-84.1%and 486.3%-1500.6%,respectively.Meanwhile,compared with the control treatment,tea pruning materials treatment and their biochar treatment significantly reduce the contents of exchangeable hydrogen,exchangeable aluminum and soil exchangeable acid,with reduction ranges of 6.5%-46.3%,11.0%-27.8%and 7.6%-48.0%,respectively.In addition,redundancy analysis shows that soil moisture content and available phosphorus are the main factors affecting tea morphological characteristics(P<0.05).Therefore,the application of tea pruning materials and their biochar is beneficial for improving soil nutrient status and promoting tea growth.关键词
茶树修剪物/生物炭/茶树生长/土壤养分/土壤酸度Key words
Tea pruning materials/biochar/tea growth/soil nutrients/soil acidity分类
农业科技引用本文复制引用
刘悦萱,王海兵,胡强,董雅洁,于泉,颜鹏,李鑫,陈延玲..茶树修剪物及其生物炭施用对茶树生长的影响[J].山东农业大学学报（自然科学版）,2025,56(6):956-966,11.基金项目
"浙江省'尖兵''领雁'研发攻关计划(2022C02046) （2022C02046）
浙江省"三农九方"科技协作计划项目(2024SNJF031) （2024SNJF031）
中国农业科学院科技创新工程(CAASZDRW202417) （CAASZDRW202417）
国家自然科学基金青年科学基金(42007096) （42007096）
