广东荔枝园土壤供肥特性研究  

Investigating on the soil nutrient properties of litchi plantation in Guangdong

作　　者：杨苞梅[1] 姚丽贤[1] 李国良[1] 何兆桓[1] 周修冲[1] 周昌敏[1] 涂仕华 

机构地区：[1]广东省农科院土壤肥料研究所/广东省养分资源循环利用与耕地保育重点实验室,广东广州510640 [2]国际植物营养研究所成都办事处,四川成都610066

出　　处：《广东农业科学》2008年第5期51-53,68,共4页Guangdong Agricultural Sciences

基　　金：中-加国际合作项目;广州市国际合作项目(2005Z3-I0041);广东省国际合作项目(2004B50201008);广东省成果转化启动项目(2005B60201003)

摘　　要：采用土壤养分状况系统研究法(ASI法),探讨了茂名高州市、惠州博罗县和广州增城市荔枝园土壤的养分状况及其主要限制因子。土壤吸附试验结果表明,荔枝园土壤对养分的吸附固定能力大小顺序:高州为P>K>B>S>Mn、Cu、Zn,博罗为Mn>K>P>B>Cu>S、Zn,增城为K>B>S>Zn>P>Mn、Cu。盆栽试验结果显示高州和增城荔枝园土壤的主要养分限制因子为N和P,博罗荔枝园土壤的主要养分限制因子为N。The ASI method is a good method in evaluating the nutrient supplying properties in soils The soil nutrient status and nutrient limiting factors in three typical litchi plantations located in Zengcheng city Guangzhou, Boluo county in Huizhou, Gaozhou county in Maoming of Guangdong province, respecitively. The results of soil adsorption trial showed that the capability of soil to fix nutrients in these three spots decreased in the order P〉K〉B〉S〉Mn, Cu and Zn for Gaozhou Maoming, Mn〉K〉P〉B〉 Cu〉S and Zn for Boluo Huizhou, and K〉B〉S〉Zn〉P〉Mn and Cu for Zengcheng Guangzhou. The pot experiment results indicated that the primary nutrient limiting factors in Gaozhou Maoming and Zhengcheng Guangzhou spot were N and P, that in Boluo Huizhou spot was N.

关 键 词：土壤特性 荔枝园 养分限制因子 养分吸附 

分 类 号：S158.3[农业科学—土壤学]