广西、福建荔枝园土壤养分吸附特性  

Nutrient-adsorption Characteristics of Soils from Litchi Orchards in Guangxi and Fujian Province

作　　者：杨苞梅 姚丽贤 李国良 何兆桓 周昌敏 Yang Baomei;Yao Lixian;Li Guoliang;He Zhaohuan;Zhou Changmin(Key Laboratory of Plant Nutrition and Fertilizer in South Region, Ministry of Agriculture Guangdong Guangzhou 510640;Institute of Agricultural Resources and Environment,Guangdong Academy of Agricultural Sciences Guangdong Guangzhou 510640;Guangdong Key Laboratory of Nutrient Cycling and Farmland Conservation Guangdong Guangzhou 510640)

机构地区：[1]农业部南方植物营养与肥料重点实验室,广东广州510640 [2]广东省农业科学院农业资源与环境研究所,广东广州510640 [3]广东省养分循环利用与耕地保育重点实验室,广东广州510640

出　　处：《西南地区作物系统养分管理研究》2013年第1期326-335,共10页

基　　金：鸣谢:作者感谢国家现代农业产业技术体系建设专项(nycytx-32);IPNI项目和国家星火计划项目(2007EA780006)的资助。

摘　　要：我们应用土壤养分状况系统研究法(ASI)对广西和福建两省荔枝主产区荔枝园土壤的养分吸附能力进行系统研究,结果显示:①广西贵港市土壤对P的吸附率平均为44.3%,K为43.6%,B为19.5%,Zn为18.7%,S为2.1%。玉林市P为50.0%,K为33.2%,B为32.1%,Zn为20.5%,S为6.1%。钦州市P为51.4%,K为22.2%,B为17.7%,Zn为22.5%,S为36.2%。可见,贵港市和玉林市土壤对养分的吸附能力大小均为P>K>B>Zn>S,而钦州市为P>S>Zn>K>B。②广西荔枝园土壤对P的吸附率平均为49.5%,K为30.2%,S为18.9%,B为22.6%,Zn为21.1%。而福建P为30.4%,K为23.4%,B为18.5%,S为15.6%,Zn为21.0%。可见,两省荔枝园土壤对磷的吸附均很强(两省荔枝园土壤均属铁铝土,而铁铝氧化物含量丰富),而对钾、硼、锌和硫的吸附能力均相对较弱。广西荔枝园土壤对P、K、S和B的吸附能力显著强于福建(由南向北,铁铝土的富铝化风化程度减弱),而Zn的吸附能力相当。The Systematic Approach(ASI)method was employed to evaluate the nutrient adsorptive properties in soils from the litchi orchards from Guangxi and Fujian.The results showed that the average soil adsorption rates were 44.3%to P,43.6%to K,2.1%to S,19.5%to B and 18.7%to Zn in the litchi orchards of Guigang,Guangxi;50.0%to P,33.2%to K,6.1%to S,32.1%to B and 20.5%to Zn in Yulin,Guangxi;and 51.4%to P,22.2%to K,36.2%to S,17.7%to B and 22.5%to Zn in Qinzhou,Guangxi.The adsorptive capability of the soils from Guigang and Yulin followed the same order of P>K>B>Zn>S,and a different order P>S>Zn>K>B for the soil from Qinzhou.On average,the adsorptive rates of the soils were 49.5%to P,30.2%to K,18.9%to S,22.6%to B and 21.1%to Zn.In Fujian province,the adsorptive rates of the soils were 30.4%to P,23.4%to K,18.5%to B,15.6%to B and 21.0%to Zn.It is evident that the soils in the two provinces have high affinity to P,probably due to the same soil type– ferralsol,a highly weathered soil dominated with iron and aluminum oxides posing strong ability to fix P,but somehow have lower ability in adsorbing K,B,Zn and S.The soils from Guangxi had stronger ability to retain P,K,S and B than from Fujian(the soils are more weathered in Guangxi),but there was no difference in Zn adsorption by soils from the two provinces.

关 键 词：荔枝 土壤 养分 吸附 

分 类 号：S714.8[农业科学—林学]