RESPONSE OF SOIL AGGREGATE STABILITY TO MANURE AMENDMENTS IN THE ULTUNA LONG-TERM SOIL ORGANIC-MATTER EXPERIMENT

被引:37
作者
GERZABEK, MH [1 ]
KIRCHMANN, H [1 ]
PICHLMAYER, F [1 ]
机构
[1] SWEDISH UNIV AGR SCI,DEPT SOIL SCI,S-75007 UPPSALA,SWEDEN
来源
ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE | 1995年 / 158卷 / 03期
关键词
D O I
10.1002/jpln.19951580308
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
The present paper deals with the long-term effects of bare fallow and organic treatments on soil aggregate stability. Soil samples were collected from plots of the long-term soil organic matter experiment in Ultuina/Sweden, which is already running for 38 years. Soil aggregate stability (SAS) showed a clear response to soil management. SAS increased in following order: bare fallow < no-N < green manure < peat less than or equal to farmyard manure. Humus contents of the plots had a significant impact on SAS. Incfeasing C-org-contents generally enhanced aggregation. However, the unfavourably high C/N ratio of peat treatments and the resulting small size of microbial biomass led to a distinctly lower positive influence of accumulated soil organic matter in case of peat additions.
引用
收藏
页码:257 / 260
页数:4
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