| 滴灌施肥对幼龄茶树生长和养分吸收的影响 |
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| 引用本文： | 杨清霖,杨向德,季凌飞,马立锋,阮建云.滴灌施肥对幼龄茶树生长和养分吸收的影响[J].茶叶科学,2020,40(1):96-104. |
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| 作者姓名： | 杨清霖 杨向德 季凌飞 马立锋 阮建云 |
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| 作者单位： | 1. 中国农业科学院茶叶研究所,农业部茶树生物学与资源利用重点实验室,浙江 杭州 310008; 2. 中国农业科学院研究生院,北京 100081 |
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| 基金项目： | 国家重点研发项目（2016YFD0200900）、现代农业产业技术体系建设专项资金（CARS23）、中国农业科学院科技创新工程（CAAS-ASTIP-2014-TRICAAS-0X） |
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| 摘 要： | 通过田间试验,研究了龙井43、白叶1号品种茶园滴灌施肥对幼龄茶树生长、养分吸收、品质成分等的影响,分析了不同施肥模式下的施肥成本投入情况。结果表明,与常规开沟施肥相比,采用滴灌施肥后,即使在化肥减量25%的情况下,树高、主干直径、树幅都显著增加,修剪物生物量增加明显;茶树对养分的吸收量明显增加,而养分的渗漏损失明显减少,从而提高了养分利用效率。从滴灌施肥的次数上分析,龙井43品种,在试验条件下年施肥次数7次可以达到较好效果,而白叶1号品种,年施14次的效果较好。
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| 关 键 词： | 滴灌施肥 生物量 主要品质成分 养分吸收 |
| 收稿时间： | 2019-03-27 |
Effects of Fertigation on Young Tea Plant Growth and Nutrient Absorption |
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| YANG Qinglin,YANG Xiangde,JI Lingfei,MA Lifeng,RUAN Jianyun.Effects of Fertigation on Young Tea Plant Growth and Nutrient Absorption[J].Journal of Tea Science,2020,40(1):96-104. |
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| Authors: | YANG Qinglin YANG Xiangde JI Lingfei MA Lifeng RUAN Jianyun |
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| Institution: | 1. Tea Research Institute, Chinese Academy of Agriculture Sciences, Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China; 2. Graduate School of Chinese Academy of Agriculture Sciences, Beijing 100081, China |
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| Abstract: | Through field experiment, the effects of fertigation on the growth, nutrient absorption and quality components of young tea plants of Longjing43 and Baiye 1 were studied. We also compared the input costs under different fertilization patterns. The results show that the tea plant growth including tree height, trunk diameter and canopy width increased significantly under fertigation, even if the chemical fertilizer was reduced by 25%, compared with conventional furrow fertilization, and pruning biomass and nutrient uptake also increased significantly. At the same time, nutrient leakage loss was significantly reduced and nutrient use efficiency was improved. From the analysis of the times of fertigation, it could achieve better results by applying fertilizer 7 times per year under the experimental conditions for Longjing 43, and 14 times per year for Baiye 1. |
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| Keywords: | fertigation biomass tea quality components nutrient absorption |
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