| 长期轮作施肥对棕壤磷素形态及转化的影响 |
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| 引用本文： | 林利红,韩晓日,刘小虎,战秀梅.长期轮作施肥对棕壤磷素形态及转化的影响[J].计算机科学,2006(1):80-83. |
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| 作者姓名： | 林利红 韩晓日 刘小虎 战秀梅 |
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| 作者单位： | 沈阳农业大学土地与环境学院 辽宁沈阳110161 |
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| 摘 要： | 对沈阳地区棕壤定位试验地各施肥处理土壤按Hed ley等建议的分级方法进行测定。结果表明,棕壤磷中残留态含量最高,无机磷主要以NaOH-P i和HC l-P i形态存在,有机磷主要以NaOH-Po形态存在,NaHCO3-Po在各组分中所占比例最小。施用有机肥能明显增加潜在活性有机磷(NaOH-Po)的数量。1.0mol L-1HC l浸提的Ca-P i存在着缓慢的动态转化过程,是棕壤中的潜在磷源。
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| 关 键 词： | 棕壤 长期定位施肥 磷的分级 |
Effects of Long-term Fertilization on Phosphorus Forms and Transformation in Brown Soil |
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| LIN Li-hong,HAN Xiao-ri,LIU Xiao-hu,ZHAN Xiu-mei.Effects of Long-term Fertilization on Phosphorus Forms and Transformation in Brown Soil[J].Computer Science,2006(1):80-83. |
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| Authors: | LIN Li-hong HAN Xiao-ri LIU Xiao-hu ZHAN Xiu-mei |
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| Abstract: | Changes in inorganic and organic phosphorus fractions resulted from 24 years of long-term fertilization in Brown soil were studied by using a sequential extraction method.The results showed: Residual-P was the largest fraction of phosphate in Brown soil.N |
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| Keywords: | Long-term fertilization Brown soil Phosphorus fractionation |
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