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中国农业科学（英文版）2002，Vol.1Issue(4)：424-431,8.
Effects of Long-term Located Fertilization on the Physico-chemical Property of Soil Humus
Effects of Long-term Located Fertilization on the Physico-chemical Property of Soil Humus
摘要
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 had effects not only on the content and composition of soil humus, but also on the physico-chemical property of humus. With applying organic manure or combined application of organic manure and chemical fertilizer, E4 and E6 values of humic acid decreased in fluvo-aquic soil and arid red soil,but increased in paddy red soil. In paddy red soil, E4 and E6 values of humic acid increased also with a single application of chemical fertilizer, but E4 and E6 values had less change of humic acid in fluvo-aquic soil and arid red soil. The effects on the visible spectroscopic property of fulvic acid were different from that of humic acid. Long-term application of organic manure or combined application of organic manure and chemical fertilizer could increase E4 and E6 values of fulvic acid in three types of soil. Single application of chemical fertilizer had less effect on the E4 and E6. Long-term fertilization could also influence the ultraviolet spectroscopic property of humus. With a single application of organic manure or combined application of organic manure and chemical fertilizer, the ultraviolet absorbance of humic acid and fulvic acid increased in the three types of soil.But this effect was obvious only in short wave length, and the effect could decrease if the wave length increased. With a single application of chemical fertilizer the ultraviolet absorbance of fulvic acid could increase, but it of humic acid increased only in fluvo-aquic soil. Long-term application of organic manure or combined application of organic manure and chemical fertilizer could increase the content of total acidic groups, carboxy groups and phenolic hydroxy groups of humic acid and fuvic acid in the three types of soil.Single application of chemical fertilizer had less effect on the content of total acidic groups, carboxy groups and phenolic hydroxy groups of humic acid and fuvic acid in the three types of soil.关键词
Long-term located fertilization/Soil humus/Fluvo-aquic soil/Arid red soil/Paddy red soilKey words
Long-term located fertilization/Soil humus/Fluvo-aquic soil/Arid red soil/Paddy red soil引用本文复制引用
SHI Ji-ping,ZHANG Fu-dao,LIN Bao..Effects of Long-term Located Fertilization on the Physico-chemical Property of Soil Humus[J].中国农业科学（英文版）,2002,1(4):424-431,8.基金项目
The project was supported by the Key Project of China Agriculture Ministry-Agriculture High-New Technology and Fundamental Research Fund. （）
