当前位置: 首页 > 文章 > 长期轮作施肥对棕壤磷素形态及转化的影响 土壤通报 2006,37 (1) 80-83
Position: Home > Articles > Effects of Long-term Fertilization on Phosphorus Forms and Transformation in Brown Soil Chinese Journal of Soil Science 2006,37 (1) 80-83

长期轮作施肥对棕壤磷素形态及转化的影响

作  者:
林利红;韩晓日;刘小虎;战秀梅
单  位:
沈阳农业大学土地与环境学院
关键词:
棕壤;长期定位施肥;磷的分级
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。
译  名:
Effects of Long-term Fertilization on Phosphorus Forms and Transformation in Brown Soil
作  者:
LIN Li-hong,HAN Xiao-ri,LIU Xiao-hu,ZHAN Xiu-mei(College of Land and Environment Science,Shenyang Agriculture University,Shenyang 110161,China)
关键词:
Long-term fertilization;Brown soil;Phosphorus fractionation
摘  要:
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.NaOH-Pi and HCl-Pi were the two main fractions of inorganic phosphorus,and NaOH-Po was the main form of organic phosphorus,proportion of NaHCO_3-Po was the smallest in all the fractions.Application of organic fertilizers could obviously raise the contents of the potentially labile organic fraction extracted by NaOH.Calcium associated inorganic phosphorus(Ca-Pi),extracted by HCl was potential phosphorus,having a slow dynamic transformation process.

相似文章

计量
文章访问数: 14
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊