双硫钙合剂对土壤微生物学特性和酶活性的影响  

Effect of TSCa on soil microbial characteristics and soil enzyme

作　　者：耿阳[1] 颜丽[1] 娄翼来[2] 闫海丽[1] 宋丹 关连珠[1] 

机构地区：[1]沈阳农业大学土地与环境学院,辽宁沈阳110161 [2]中国科学院沈阳应用生态研究所,辽宁沈阳110016 [3]辽宁省土壤肥料总站,辽宁沈阳110034

出　　处：《中国土壤与肥料》2009年第2期56-59,共4页Soil and Fertilizer Sciences in China

摘　　要：双硫钙合剂(TSCa)是由福美双、硫磺、碳酸钙按一定比例充分混合配置而成的一种土壤消毒剂。本文通过室内培养试验研究了双硫钙合剂对土壤微生物生物量、酶活性的影响及其变化特征。研究结果表明,TSCa能在短期内降低土壤中微生物生物量氮、生物量磷,抑制土壤过氧化氢酶、脲酶、磷酸酶的活性,其抑制和影响程度随施用量的增加而加大。TSCa对土壤微生物生物量和土壤酶活性的影响主要表现在前30 d,30 d以后影响程度逐渐缩小,到第40 d时影响几乎消失。TSCa is a kind of soil disinfectant which is made of thiram, sulfur and calcium carbonate. The effect of TSCa on soil microbial biomass and soil enzyme activity was studied in laboratory. The results showed that TSCa could reduce the quantity of soil microbial biomass N and P, inhibite the activity of soil catalase, urease and neutral phosphatase. The inhibition and influence degree increased with the increasing of the dose. The effect of TSCa maintained within the first 30 days, then the sthength decreased, disappeared after the 40 days.

关 键 词：双硫钙合剂 土壤微生物生物量 土壤酶活性 

分 类 号：S154[农业科学—土壤学]