多效唑对土壤微生物数量及部分酶活性的影响  

Effects of paclobutrazol (pp333) on number of soil microorganism and activity of some enzymes in soil

作　　者：赵秀芬[1] 房增国[1] 高祖明[2] 

机构地区：[1]莱阳农学院,山东莱阳265200 [2]南京农业大学植物营养系

出　　处：《广西农业科学》2005年第3期234-235,共2页Guangxi Agricultural Sciences

摘　　要：用0、2 5、5 0、10 0 m g/kg浓度的多效唑处理黄棕壤,研究其对土壤微生物数量及土壤脲酶、过氧化氢酶活性的影响。结果表明,在本实验的浓度范围内,多效唑处理可增加土壤细菌、放线菌、真菌的数量,提高土壤脲酶和过氧化氢酶活性,其最佳处理浓度为5 0The effects of different concentrations (0, 25, 50 and 100 mg/kg) of paclobutrazol (PP333) on the number of microorganism in brownyellow soil and the activity of some enzyme in the soil were researched. The results showed that, within the range of the concentration, PP0333 could increase the biomass of the bacteria, actinomyces and fungi, and the activity of urease and catalase in the soil. The best concentration was 50mg/kg.

关 键 词：多效唑 土壤微生物 脲酶 过氧化氢酶 

分 类 号：S154[农业科学—土壤学]