| 长期定位施肥对土壤腐殖质理化性质的影响 |
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| 引用本文： | 史吉平,张夫道,林葆.长期定位施肥对土壤腐殖质理化性质的影响[J].中国农业科学,2002,35(2):174-180. |
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| 作者姓名： | 史吉平 张夫道 林葆 |
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| 作者单位： | 1. 上海交通大学农学院,上海,201101
2. 中国农业科学院土壤肥料研究所,北京,100081 |
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| 基金项目： | 农业部“九五”重点农业高新技术与基础研究项目 (农 -0 3 ) |
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| 摘 要： | 以潮土、旱地红壤和红壤性水稻土为研究对象 ,探讨了长期施肥对土壤腐殖质含量与性质的影响。结果表明 ,长期施肥不仅影响土壤腐殖质的含量与组成 ,还影响腐殖质的理化性质。施有机肥或有机无机肥配施降低潮土和旱地红壤胡敏酸的E4和E6值 ,提高红壤性水稻土胡敏酸的E4和E6值。单施化肥也能提高红壤性水稻土胡敏酸的E4和E6值 ,但对潮土和旱地红壤胡敏酸E4和E6值影响不大。长期施肥对土壤耕层富里酸可见光谱的影响与胡敏酸不同 ,施有机肥或有机无机肥配施均能提高 3种土壤富里酸的E4和E6值 ,单施化肥对 3种土壤富里酸的E4和E6值基本上没有影响。长期施肥也影响腐殖质的紫外吸收光谱 ,长期施用有机肥或有机无机肥配施均能提高 3种土壤胡敏酸和富里酸的紫外吸收光谱值 ,但这种作用只在短波长方向明显 ,随着波长的增加影响减小。单施化肥也可以提高富里酸的紫外吸收值 ,但只能提高潮土胡敏酸的紫外吸收值。长期施用有机肥或有机无机肥配施均能提高 3种土壤胡敏酸和富里酸的总酸性基、羧基和酚羟基含量 ,单施化肥对胡敏酸和富里酸含氧功能团含量的影响不大
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| 关 键 词： | 长期定位施肥 土壤腐殖质 潮土 旱地红壤 红壤性水稻土 |
| 修稿时间： | 2001年2月27日 |
Effects of Long-term Located Fertilization on the Physico-chemical Property of Soil Humus |
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| SHI Ji ping ,ZHANG Fu dao ,LIN Bao.Effects of Long-term Located Fertilization on the Physico-chemical Property of Soil Humus[J].Scientia Agricultura Sinica,2002,35(2):174-180. |
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| Authors: | SHI Ji ping ZHANG Fu dao LIN Bao |
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| Institution: | SHI Ji ping 1,ZHANG Fu dao 2,LIN Bao 2 |
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| Abstract: | A systematic study concerning the effects of a long term stationary fertilization on content and property of soil humus in Fluvo aquic soil sampled from Malan Farm, Xinji City, Hebei, and Arid red soil and Paddy red soil sampled from the Institute of Red Soil, Jinxian County, Jiangxi was conducted. The results showed that long term fertilization affected not only the content and composition of soil humus, but also the physico chemical property of the soil humus. With applying organic manure or applying both organic manure and chemical fertilizer, E 4 and E 6 values of humic acid decreased in the Fluvo aquic soil and the Arid red soil, but increased in the Paddy red soil. E 4 and E 6 values of humic acid increased with single application of chemical fertilizer. In the Paddy red soil but they changed a little in Fluvo aquic soil and Arid red soil. The effects of long term fertilization on the visible spectroscopic property of fulvic acid were different from that of humic acid. Long term application of organic manure or application of both organic manure and chemical fertilizer could increase E 4 and E 6 values of fulvic acid in all the three types of soil. Single application of chemical fertilizer had little effect on the E 4 and E 6. Long term fertilization could also influence the ultraviolet spectroscopic property of humus. With single application of organic manure or application of both organic manure and chemical fertilizer, the ultraviolet absorbance of humic acid and fulvic acid increased in all the three types of soil. But this effect was obvious only in short wave length and decreased as the wave length increased. With single application of chemical fertilizer the ultraviolet absorbance of fulvic acid increased in all the three types of soil, but that of humic acid increased only in Fluvo aquic soil. Long term application of organic manure or application of both organic manure and chemical fertilizer increased the contents of total acidic groups, carboxyl groups and phenolic hydroxyl groups of humic acid and fuvic acid in the three types of soil. Single application of chemical fertilizer had little effects on the content of total acidic groups, carboxyl groups and phenolic hydroxyl groups of humic acid and fuvic acid in the three types of soil. |
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| Keywords: | Long term located fertilization Soil humus Fluvo aquic soil Arid red soil Paddy red soil |
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