土壤中磷吸附等温线的测定及其与土壤特性的关系

Journal of Food Agriculture & Environment Pub Date : 2010-03-01 DOI:10.3923/IJSS.2010.131.139

H. Moazed, Y. Hoseini, A. Naseri, F. Abbasi

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引用次数: 43

摘要

研究了2009/2010年伊朗东南部奥米迪地区5种土壤样品对磷的吸附特性。研究了这些土壤的一些特性和磷吸附特性。本研究结果表明，Langmuir吸附等温线与吸附P数据和最大r平方吻合较好。土壤有机碳(SOC)、土壤pH、交换性钙和交换性铝对磷吸附差异的影响较大。回归分析表明，土壤有机碳和Al - sat是研究区土壤吸附的最高预测因子。在预测土壤吸附时，需要纳入更多的土壤化学、物理和矿物学性质，以提高信息的可靠性。

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Determining phosphorus adsorption isotherm in soil and its relation to soil characteristics

Phosphorus (P) adsorption characteristics of 5 soil samples were studied in soils of Omidie, Southeastern Iran, during 2009/2010 cropping season. Some soil properties as well as selected P-adsoption characteristics were studied in these soils. In this study, results show Langmuir adsorption isotherm had better match with adsorbed P data and maximum R-square. Differences in P- adsorption were greatly influenced by soil organic carbon (SOC), soil pH, exchangeable calcium and exchangeable aluminium. Regression analysis showed that SOC and Al sat were the highest predictors of Padsorption in soils of the study site. There is need for inclusion of more soil chemical, physical and mineralogical properties in predicting soil Padsorption to enhance reliability of information.

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来源期刊

Journal of Food Agriculture & Environment 农林科学-食品科技

自引率

0.00%

发文量

审稿时长

2.9 months

期刊介绍： The Journal of Food, Agriculture and Environment (JFAE) publishes peer-reviewed articles, original research, critical reviews or short communications in food science and technology, human nutrition, animal sciences; agricultural and environmental sciences. This journal encourages articles on interdisciplinary research in the fields of food, agriculture and environment. The core objective of this journal is to enlighten and encourage research on cutting-age themes and innovations by scientists, researchers, students, professionals, academicians, policy-makers, and stake holders. The JFAE also considers manuscripts on ethical and socio-economic issues related to modern agricultural or environmental sciences. The Journal also offers advertisement space for special announcements from, and employment opportunities within, food, agricultural and environmental organizations in public and private sectors.