甘肃主要农业土壤中Cu、Zn、Mn、Fe的形态及有效性研究
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*甘肃省自然科学基金


STUDY ON FORMS AND AVAILABILITY OF Cu, Zn, Mn AND Fe OF PRINCIPAL AGRICULTURAL SOILS IN GANSU PROViNCE
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    摘要:

    本文对甘肃省主要农业土壤中Cn、Zn、Mn、Fe的形态及其有效性进行了研究.结果表明,供试土壤的全Cu含量范围为22-24mg/kg,全Zn为73-74mg/kg,全Mn为542-772mg/kg,全Fe为35685-38355mg/kg.四种元素均以灌漠土的含量最低,褐土最高.土壤中Cu、Zn、Mn、Fe的大部分以残留矿物态和氧化铁结合态存在.生物试验和统计分析表明,Cn、Zn、Mn、Fe的交换态和松结有机态对植物最为有效,以松结有机态的作用最大.

    Abstract:

    In this work,the forms and availability of Cu,Zn,Mn and Fe of principal agricultural soils in Gansu Province were studied.The results showed that the contents of Cu,Zn,Mn and Fe in the experimental soils were 22-24mg/kg,73-74mg/kg,542-772mg/kg and 25685-38355mg/kg respectively.Of the four soil types tested the contents of Cu,Zn,Mn and Fe were the lowest in irrigated desert soil but the highest in cinnamon soil.Most of Cu,Zn,Mn and Fe in the soil occur in residual mineral form and bound to iron oxide (amorphous and crystalline).Both biological experiment and statistical analysis pointed that the exchangeable form and the form loosly bound to organic matter were the most available forms of Cu,Zn,Mn and Fe for plants.

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邵煜庭,甄清香,刘世铎.甘肃主要农业土壤中Cu、Zn、Mn、Fe的形态及有效性研究[J].土壤学报,1995,32(4):423-429. Shao Yuting, Zhen Qingxiang, Liu Shiduo. STUDY ON FORMS AND AVAILABILITY OF Cu, Zn, Mn AND Fe OF PRINCIPAL AGRICULTURAL SOILS IN GANSU PROViNCE[J]. Acta Pedologica Sinica,1995,32(4):423-429.

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  • 在线发布日期: 2013-02-25
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