| 宁波市辖区水稻土硅钙镁锌铜有效性评价及其影响因素研究 |
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| 引用本文： | 秦方锦,王飞,徐静高,王笑,张彦娟.宁波市辖区水稻土硅钙镁锌铜有效性评价及其影响因素研究[J].土壤通报,2013(1):197-201. |
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| 作者姓名： | 秦方锦 王飞 徐静高 王笑 张彦娟 |
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| 作者单位： | 宁波市农业技术推广总站;北仑区农业技术推广总站;江北区农技推广服务总站;镇海区农技总站 |
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| 基金项目： | 农业部测土配方施肥项目(农办财[2009]32号)资助 |
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| 摘 要： | 研究分析了宁波市辖区(江北、镇海、北仑)水稻土耕层中的有效Si、Ca、Mg、Zn、Cu含量及其影响因素。结果表明,研究区内土壤有效硅、有效钙、有效镁、有效锌和有效铜均属中等变异强度,变异系数介于27.6%~71.1%,有明显缺硅、缺铜现象。相关分析表明,各元素有效含量与土壤有机质含量呈一定正相关性;有效硅、有效钙、有效镁与土壤pH呈极显著正相关性,有效锌和有效铜与土壤pH呈一定负相关性。因此,在一定程度上,土壤有机质和pH水平可以反映出有效Si、Ca、Mg、Zn、Cu含量的丰缺程度。
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| 关 键 词： | 水稻土 Si、Ca、Mg、Zn、Cu 有效性 影响因素 |
Study on the Bioavailability and Influence Factors of Si,Ca,Mg,Zn and Cu of Paddy Soil in Municipal Districts of Ningbo City |
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| QIN Fang-jin,WANG Fei,XU Jing-gao,WANG Xiao,ZHANG Yan-juan.Study on the Bioavailability and Influence Factors of Si,Ca,Mg,Zn and Cu of Paddy Soil in Municipal Districts of Ningbo City[J].Chinese Journal of Soil Science,2013(1):197-201. |
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| Authors: | QIN Fang-jin WANG Fei XU Jing-gao WANG Xiao ZHANG Yan-juan |
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| Institution: | 1.Agricultural Techniques Extension Station of Ningbo City,Ningbo 315000,China;2.Agricultural Techniques Extension Station of Beilun District,Ningbo 315800,China;3.Agricultural Techniques Extension Station of Jiangbei District,Ningbo 315021,China; 4.Agricultural Techniques Extension Station of Zhenhai District,Ningbo 315200,China) |
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| Abstract: | The available contents and influence factors of Si,Ca,Mg,Zn and Cu in the cultivated paddy soils in municipal districts of Ningbo(Jiangbei,Zhenhai,Beilun) were studied.The results showed that the variance coefficients of soil available Si,Ca,Mg,Zn and Cu ranged from 27.6% to 71.1%,belonging to middle intensity.There was a situation in which the contents of available Si and Cu were significantly deficient.The correlation analysis indicated that there were positive correlations between the bioavailability contents of such elements and the soil organic matter,significant positive correlation between the contents of available Si,Ca,Mg and the soil pH,and negative correlation between the contents of available Zn,Cu and the soil pH,which suggested that the level of soil organic matter and pH could reflect the level of enrichment or shortage of these bioavailability contents of Si,Ca,Mg,Zn and Cu. |
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| Keywords: | Paddy soil Si Ca Mg Zn Cu Bioavailability Influence factors |
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