Nutrient Availability of Tea Growing Soil Influenced by Different Rates of Dolomite

茶叶科学 Pub Date : 2016-01-28 DOI:10.5376/JTSR.2016.06.0001

S. Kavitha, K. Prapagar, G. Gunarathne

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引用次数: 1

Abstract

Teas ( Camellia sinensis L.) exclusively prefer to grow in acid soils but in very acidic nature it is detrimental to the available nutrient content especially Ca, Mg and Mn in soil. Dolomite is soil amendment which used to mitigate the soil acidity and also it provides some essential nutrient Ca and Mg itself. Present investigation was undertaken to identify the effect of different rate of Dolomite on major and micronutrient availability of Tea growing soils of low country wet zone. Field trial was laid out in Randomized Complete Block Design consisting of five treatments in different rate of Dolomite (kg/ha/pruning cycle) namely; T1 (control), T2 (1000), T3 (2000), T4 (3000), and T5 (4000). Soil nutrient content at 0-15cm and 15-30cm of depths were studied. The data generated from the study was analyzed by using Analysis of Variance (ANOVA) in SAS statistical package. Treatment means were compared at probability p< 0.05 using LSD. Soil Exchangeable Al, Ca and D.T.P.A extractable Mn were had no effect. But soil available Fe was significantly declined according to the dolomite rate. The highest average mean value of Fe was obtained in control. Highest average means of soil Exchangeable Mg (101.33mg/kg) was observed in highest dolomite applied plots at 0-15cm depth and highest K (130.67mg/kg) was recorded in the treatment with 2000kg/ha/pruning cycle.

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不同白云石用量对茶园土壤养分有效性的影响

茶树(Camellia sinensis L.)特别喜欢生长在酸性土壤中，但在酸性很强的土壤中，它不利于土壤中有效养分含量，特别是钙、镁和锰。白云石是一种土壤改良剂，既能缓解土壤酸性，又能提供必需的钙、镁等营养物质。研究了不同白云石用量对低洼湿润区茶园土壤主要和微量养分有效性的影响。田间试验采用随机完全区组设计，分为5个处理，分别为:不同白云石施用量(kg/ha/修剪周期);T1(对照)，T2 (1000)， T3 (2000)， T4 (3000)， T5(4000)。研究了0 ~ 15cm和15 ~ 30cm深度土壤养分含量。采用SAS统计软件包中的方差分析(ANOVA)对研究产生的数据进行分析。使用LSD比较治疗平均值的概率p< 0.05。土壤交换性Al、Ca和D.T.P.A可萃取性Mn均无影响。土壤有效铁含量随白云石含量的增加而显著下降。对照组铁的平均含量最高。在0 ~ 15cm深度施用白云石最多的地块，土壤交换态Mg的平均平均值最高，为101.33mg/kg;在2000kg/ha/修剪周期处理中，土壤交换态Mg的平均平均值最高，为130.67mg/kg。

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来源期刊

茶叶科学

CiteScore

1.50

自引率

0.00%

发文量

2558

期刊介绍： The Journal of Tea Science was established in August 1964, approved by the Publicity Department, CCCPC. Its title was inscribed by Zhu De, the chairman of CCCPC. It was discontinued during the Cultural Revolution in 1966, and it was reissued in August 1984, approved by the State Scientific and Technological Commission.Academicians Chen Zongmao and Liu Zhonghuaof the Chinese Academy of Engineering served as the directors of the editorial board. The Journal of Tea Science is managed by the China Association for Science and Technology,sponsored by the China Tea Science Society and the Tea Research Institute of the Chinese Academy of Agricultural Sciences, and edited and published by the editorial office of the Journal of Tea Science. It is the only one of Chinese core journals in the field of tea science that is included in the core library of the Chinese Science Citation Database.Its Domestic Unified Serial Number is CN 33-1115/S, its International Standard Serial Number is ISSN 1000-369X and its International publication name code is CODEN-CHKEF4. At present, the Journal of Tea Science is a bimonthly publication, published in the middle of the month, with a book size of 16.