| 三江平原白浆土中Fe、Mn、Cu和Zn生物有效性的研究 |
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| 引用本文： | 田秀平,李玉梅.三江平原白浆土中Fe、Mn、Cu和Zn生物有效性的研究[J].土壤,2009,41(2):196-200. |
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| 作者姓名： | 田秀平 李玉梅 |
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| 作者单位： | 1. 天津农学院农学系,天津,300384
2. 黑龙江省农业科学院,哈尔滨,150086 |
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| 摘 要： | 在三江平原上,测定 42 个小区中玉米、大豆、小麦籽实 Fe、Mn、Cu 和 Zn 含量和土壤中各形态 Fe、Mn、Cu 和Zn含量.通过相关分析和通径分析,探讨了土壤中各形态Fe、Mn、Cu 和 Zn 的生物有效性,旨在为该地区合理施用微量元素提供科学依据.试验结果表明,玉米、大豆和小麦籽实含 Fe、Mn、Cu 和 Zn 量与土壤中有效态和交换态 Fe、Mn、Cu和Zn含量呈显著或极显著正相关.有机态 Fe、Mn、Cu 和 Zn含量与玉米、大豆和小麦籽实Fe、Mn、Cu 和 Zn含量也有很好的相关关系.交换态对有效态 Fe、Mn、Cu 和 Zn 影响最大,其次是有机质结合态.铁锰氧化物结合态 Fe、Cu 对有效态 Fe、Cu 及碳酸盐结合态 Mn、Zn 对有效态 Mn、Zn 具有一定正效应.而残留态 Fe、Cu 对有效态 Fe、Cu 和铁锰氧化物结合态 Mn 对有效态 Mn 产生负效应.
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| 关 键 词： | 白浆土 长期定位 Fe、Mn、Cu和Zn 生物有效性 |
On Bio-Availability of Fe, Mn, Cu and Zn in Albic Soil of the Three River Plain |
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| TIAN Xiu-ping,LI Yu-mei.On Bio-Availability of Fe, Mn, Cu and Zn in Albic Soil of the Three River Plain[J].Soils,2009,41(2):196-200. |
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| Authors: | TIAN Xiu-ping LI Yu-mei |
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| Institution: | Department of agriculture, Tianjin Agricultural College, Tianjin 300384, China |
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| Abstract: | The experimental aimed at the contents of Fe, Mn, Cu and Zn in the seeds of wheat, soybean and maize, and the contents of Fe, Mn, Cu and Zn in different forms in soil, and the data were obtained from 42 experimental plots in the Three River Plain. This paper illustrated the bio-availability of Fe, Mn, Cu and Zn in different forms in soil in order to find a scientific method for application of trace elements in the Three River Plain. The correlated analyses showed that the contents of available, exchangeable and organic Fe, Mn, Cu and Zn in soil had significant or very significant positive correlations with those in the seeds of wheat, soybean and maize. The results of path analyses showed that the effect of exchangeable forms on available Fe, Mn, Cu and Zn was most, followed by the organic form. The oxide bound Fe, Cu to available Fe, Cu and carbonate bound Mn, Zn to available Mn, Zn showed positive effect, but residual Fe, Cu to available Fe, Cu and oxide bound Mn to available Mn show negative effect. |
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| Keywords: | Albic soil Long-term stationary Fe Mn Cu and Zn Bio-availability |
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