长江冲积土壤硫肥力研究  

Studies on Sulfur Fertility of Alluvial Deposit Soil from Yangtze River.

作　　者：胡正义[1] 张继榛[1] 李若清 

机构地区：[1]安徽农业大学土化系

出　　处：《安徽农业科学》1997年第1期26-27,32,共3页Journal of Anhui Agricultural Sciences

摘　　要：对长江冲积土壤硫进行了分析，结果表明：１．从无为县开始沿江而上至宿松县，长江冲积土壤有效Ｓ有减少的趋势。２．从平均值来看，水稻土有效Ｓ大于灰潮土；潜育型水稻土大于潴育型水稻土。３．灰潮土有效Ｓ含量不高，但潜在供Ｓ能力较强。Ｃ－Ｏ－Ｓ是主要潜在硫库，其次是惰性Ｓ和难溶Ｓ。The result of analysing 67 samples of alluvial deposit Soil from Yangtze river showed:1.Available sulfur content of soil was getting lower and lower from Wuwei county to Susong county.2.Available Sulfur content of paddy soils was higher than that of Grey meadow;available sulfur content of Gleyed Paddy soil was higher than that of Stagnating.3.Available sulfur content of Grey meadow was low,but potential capacity of sulfur supplyment was strong,the majority which was c o s;the second,inert s and the tast, slowly soluble sulfur.

关 键 词：长江冲积物 硫形态组份 水稻土 灰潮土 

分 类 号：S155.2[农业科学—土壤学] S158[农业科学—农业基础科学]