有机肥与化肥配施对云南旱烟地和田烟地土壤酶活性的影响  

Effect of Combined Application of Organic Fertilizer and Chemical Fertilizer on Enzymatic Activities in Soils with Tobacco-maize Rotation and Tobacco-rice Rotation in Yunnan Province

作　　者：王飞祥[1] 冯大兰[1] 黄建国[1] 

机构地区：[1]西南大学资源环境学院,重庆400716

出　　处：《贵州农业科学》2011年第6期114-118,共5页Guizhou Agricultural Sciences

基　　金：973国家重大课题基础研究"肥料减施增效与农田可持续利用基础研究"的子项目"有机无机肥料的协同促进效应及机理"(2007CB109304);西南大学研究生教育创新计划立项项目"有机无机长期施肥潮土中C;N矿化特性研究"(Ky2008002);中国烟草总公司云南省烟草公司"中低产烟田改造后土壤地力恢复综合配套技术研究"的子项目"中低产烟田改造后土壤有机质恢复及转化研究"(09YN003)

摘　　要：为给烤烟氮肥的合理施用和土壤改良提供依据,研究了有机肥与化肥配施对云南旱烟地和田烟地土壤酶活性的影响。结果表明：施有机肥处理的土壤脲酶、蛋白酶、转化酶和酸性磷酸酶活性明显提高,而过氧化氢酶活性无显著变化;各施肥处理中,旱烟地土壤的脲酶、蛋白酶、转化酶和酸性磷酸酶活性分别比田烟地高60.84%~71.78%、37.64%~53.03%、17.01%~32.36%和24.61%~51.77%,但过氧化氢酶活性无显著差异。旱烟地碳氮比高于田烟地,但无显著差异。可见,有机肥与化肥合理配施有利于提高酶活性,促进营养元素的转化与循环,改善土壤营养,促进植物吸收利用。Effect of combined application of organic fertilizer and chemical fertilizer on enzymatic activities in soils with tobacco-maize rotation（soil A） and tobacco-rice rotation（soil B） in Yunnan province was studied to provide basis for rational application of nitrogen fertilizer and soil improvement.The results showed that application of organic fertilizer significantly increased urease,protease,invertase and phoshatase activities in soil A and soil B,while had no significant effect on catalase activity.The urease,protease,invertase and phoshatase activities in soil A were higher than that of soil B from 60.84% to 71.78%,from 37.64% to 53.03%,from 17.01% to 32.36% and from 24.61% to 51.77% respectively,while the catalase activity between soil A and soil B was not significantly different.C-N ratio in soil A was higher than that of soil B,but there was no significant difference between the two soils.Those indicated that combined application of organic fertilizer and chemical fertilizer was beneficial to improve enzymatic activity,promote transformation and circulation of nutrient elements,improve soil nutrient and promote plant absorption and utilization.

关 键 词：田烟地 旱烟地 酶活性 

分 类 号：S154.34[农业科学—土壤学]