杭州重点茶园中微量元素丰缺状况研究  

Study on Abundance and Deficiency of Medium and Trace Elements in Key Tea Gardens in Hangzhou

作　　者：袁杭杰 王京文 杨文叶 李丹 YUAN Hangjie;WANG Jingwen;YANG Wenye;LI Dan(Hangzhou Agricultural Technology Extension Center,Hangzhou 310020)

机构地区：[1]杭州市农业技术推广中心,杭州310020

出　　处：《中国农学通报》2024年第27期97-101,共5页Chinese Agricultural Science Bulletin

基　　金：杭州市财政专项“杭州市农田环境质量监测”。

摘　　要：研究旨在评估杭州市茶园土壤中微量元素的有效态浓度及其丰缺情况。为此,我们对8个主要植茶县30个代表性茶园进行表层土样的采集与分析。研究发现,有效铁和锌在土壤中的浓度较为丰富,而有效铜浓度普遍缺乏,有效锰、硼、硫、钙和镁部分土壤缺乏;茶园间土壤中微量元素浓度差别较大,有效铜、铁、硼和硫元素空间变异为中等变异,有效锰、锌、钙和镁元素为强变异;土壤有效铜、铁、锌、硼和硫与pH呈负相关关系,有效锰、钙和镁与pH呈正相关关系;土壤有效铁、锰、锌、硼、钙和镁与有机质呈正相关关系,有效铜和硫与有机质呈负相关关系;中微量元素之间既有共生也有互相抑制的关系。因此,应针对不同茶园土壤的中微量元素情况,在多施有机肥的同时因地制宜地增施相应的微肥,防止茶园土壤过度酸化。To find out the abundance and deficiency of available medium and trace elements in tea gardens in Hangzhou,30 representative topsoil samples from eight major tea-growing counties were collected and analyzed.The results showed that available iron and zinc were abundant overall,but large areas of available copper and part areas of available manganese,boron,sulfur,calcium and magnesium were deficient.The contents of medium and trace elements in soil varied greatly among tea plantations.The spatial variation of available copper,iron,boron and sulfur elements was moderate,while the variation of available manganese,zinc,calcium and magnesium elements was strong.Available copper,iron,zinc,boron and sulfur in soil were negatively correlated with pH,while available manganese,calcium and magnesium were positively correlated with pH.Available iron,manganese,zinc,boron,calcium and magnesium in soil were positively correlated with organic matter,while available copper and sulfur were negatively correlated with organic matter.There were both symbiosis and mutual inhibition between medium and trace elements.Therefore,according to the conditions of medium and trace elements in the soil of different tea gardens,the corresponding micro-fertilizer should be applied according to local conditions in addition to increasing the application of organic fertilizer to prevent excessive acidification of soil in tea gardens.

关 键 词：茶园土壤 中量元素 微量元素 丰缺状况 相关性 有效态浓度 空间变异 pH 有机质 施肥策略 

分 类 号：S154.3[农业科学—土壤学]