排灌机械工程学报
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排灌机械工程学报  2018, Vol. 36 Issue (6): 524-528    DOI: 10.3969/j.issn.1674-8530.17.0124
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喷灌条件下茶园土壤肥力与茶叶品质指标
缪子梅1, 李竞春1*, 陈栋2, 王维汉3
1.江苏大学农业装备工程学院, 江苏 镇江 212013; 2.淮安市水利勘测设计研究院有限公司, 江苏 淮安 223005; 3.浙江水利水电学院教务处, 浙江 杭州 310018
Soil fertility and tea quality of tea plantation under sprinkler irrigation
MIAO Zimei1, LI Jingchun1*, CHEN Dong2, WANG Weihan3
1.School of Agricultural Equipment Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.Huai′an Water Investigation, Design and Research Co.Ltd. Huaian, Jiangsu 223025, China; 3.Dean′s office, zhejiang University of water Resources and Electric Power, Hangzhou, Zhejiang 310018, China
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摘要 在喷灌条件下水分调控的基础上,采用田间试验研究了茶园土壤肥力指标(包括土壤氮素、土壤温度)与茶叶品质指标(包括氨基酸、茶多酚)的动态变化规律.研究结果表明,喷灌条件下茶园表层土壤总氮(TN)含量最高,随着土层深度的增加,TN含量呈递减趋势,喷灌处理各土层TN含量略高于常规处理,速效氮含量变化呈现与TN含量变化相同趋势,对比常规处理,喷灌处理各土层土壤TN平均含量增加3.3%~22.2%,速效氮平均含量增加7.1%~24.7%;喷灌处理表层土壤与20 cm土层土壤温度均高于常规处理,表层土壤温度在5:00最低,比常规处理提前1 h,在14:00最高,与常规处理同步,20 cm土层土壤温度在8:00最低,比常规提前2 h,在17:00最高,比常规处理提前近2 h;此外,氨基酸含量变化呈现出先降低后增加的趋势,茶多酚含量变化呈现出先增加后降低的趋势,喷灌处理氨基酸、茶多酚含量均高于常规处理,氨基酸含量提高12.21%,茶多酚含量提高17.03%.
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缪子梅
李竞春*
陈栋
王维汉
关键词茶园   喷灌   土壤氮素   土壤温度   氨基酸   茶多酚     
Abstract: Based on the regulation of water under sprinkler irrigation, field experiments were conducted to investigate the tea soil fertility index(including soil nitrogen, soil temperature)and tea quality indexes(including amino acid, tea polyphenol)dynamic changes. The results show that total nitrogen(TN)in surface soil layer under sprinkler irrigation was the highest.With the increase of soil depth, TN content decreased, and TN content of sprinkler irrigation treatment was slightly higher than that of the conventional treatment. Changes of available nitrogen content presented the same trend as TN content. Compared with the conventional irrigation treatment, the average content of soil TN increased by 3.3%-22.2%, and the average content of available nitrogen increased by 7.1%-24.7% under the sprinkler irrigation treatment. Moreover, soil temperatures in surface soil layer and 20 cm soil layer of the sprinkler irrigation treatment were both higher than those of the conventional treatment. For surface soil layer, the soil temperature was lowest at 5:00, 1 hour in advance compared to the conventional treatment, and highest at 14:00, synchronized with the conventional treatment. For 20 cm soil layer, the soil temperature was lowest at 8:00, 2 hours in advance compared to the conventional treatment, and it was highest at 17: 00, nearly 2 hours in advance compared to the conventional treatment. In addition, the content of amino acids decreased first and then increased, while the tea polyphenol content increased first and then decreased. Both the contents of amino acid and tea polyphenol of the sprinkler irrigation treatment were higher than those of the conventional treatment. Compared to the conventional treatment, the content of amino acid increased by 12.21% and that of tea polyphenol increased by 17.03% under the sprinkler irrigation treatment.
Key wordstea plantection   sprinkler irrigation   soil nitrogen   soil temperature   amino acid   tea polyphenol   
收稿日期: 2017-06-01;
基金资助:

江苏省水利科技项目(20150176);江苏高校优势学科建设工程资助项目;浙江省自然科学基金资助项目(LY15E090005)

引用本文:   
缪子梅,李竞春*,陈栋等. 喷灌条件下茶园土壤肥力与茶叶品质指标[J]. 排灌机械工程学报, 2018, 36(6): 524-528.
MIAO Zi-Mei-,LI Jing-Chun-*,CHEN Dong- et al. Soil fertility and tea quality of tea plantation under sprinkler irrigation[J]. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(6): 524-528.
 
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