外源腐殖酸对三种土壤磷吸附与解吸特性的影响

生态学杂志

外源腐殖酸对三种土壤磷吸附与解吸特性的影响

杨凯^1,3;关连珠²;颜丽²;朱教君¹;贺婧⁴

¹中国科学院沈阳应用生态研究所，沈阳 110016;²沈阳农业大学，沈阳阳 110161;³中国科学院研究生院，北京 100039;⁴宁夏大学，银川 750021

收稿日期:2008-11-21 修回日期:1900-01-01 出版日期:2009-07-10 发布日期:2009-07-10

Effects of exogenous humic acids on soil phosphorus adsorption and desorption.

YANG Kai^1,3;GUAN Lian-zhu²;YAN Li²;ZHU Jiao-jun¹;HE Jing⁴

¹Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;²Shenyang Agricultural University, Shenyang 110161, China;³Graduate University of Chinese Academy of Sciences, Beijing 100039, China;⁴Ningxia University, Yinchuan 750021, China

Received:2008-11-21 Revised:1900-01-01 Online:2009-07-10 Published:2009-07-10

摘要/Abstract

摘要： 通过对3种土壤（红壤、棕壤和褐土）施入不同腐殖酸的室内培养试验，探讨了外源腐殖酸对不同土壤磷素吸附和解吸的影响。结果表明：与对照土壤相比，不同腐殖酸降低了3种供试土壤磷素的吸附量，其降低顺序为：褐土＞红壤＞棕壤;外源腐殖酸提高了红壤和棕壤磷素的解吸量和解吸率，提高的幅度与腐殖酸的种类有关;而腐殖酸对褐土磷素的解吸量则无明显促进作用。表明外源腐殖酸对3种土壤磷素吸附-解吸作用最强的为红壤，其次为棕壤，最弱的为褐土;同时表明腐殖酸可提高红壤和棕壤磷素的利用率。

关键词: 东北春大豆, SSR标记, 遗传多样性, 等位变异, 核心种质

Abstract: With red soil, brown soil, and drab soil as test soils, a laboratory incubation test was conducted to study the effects of exogenous humic acids on soil phosphorus (P) adsorption and desorption. Comparing with the control, applying humic acids decreased the adsorbed amount of P in soils, with the sequence of drab soil > red soil > brown soil. Humic acid application increased the desorbed amount and desorption rate of P in red soil and brown soil, the increment varied with the kinds of exogenous humic acid, but had less promotion effect on the P desorption in drab soil. The effects of exogenous humic acids on soil P adsorption and desorption were most obvious in red soil, followed by in brown soil, and in drab soil. Applying humic acids could enhance the P utilization rate in red soil and brown soil.

Key words: Northeast China spring soybean, SSR marks, Genetic diversity, Core collection

杨凯;关连珠;颜丽;朱教君;贺婧. 外源腐殖酸对三种土壤磷吸附与解吸特性的影响[J]. 生态学杂志.

YANG Kai^1,3;GUAN Lian-zhu²;YAN Li²;ZHU Jiao-jun¹;HE Jing⁴. Effects of exogenous humic acids on soil phosphorus adsorption and desorption.[J]. cje.

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