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玉米根茬留田对土壤微生物量碳和酶活性动态变化特征的影响
引用本文:宋日,吴春胜,牟金明,姜岩,郭继勋.玉米根茬留田对土壤微生物量碳和酶活性动态变化特征的影响[J].应用生态学报,2002,13(3):303-306.
作者姓名:宋日  吴春胜  牟金明  姜岩  郭继勋
作者单位:1. 东北师范大学国家草地生态工程实验室,长春,130024;吉林农业大学农学院,长春,130118
2. 吉林农业大学农学院,长春,130118
3. 东北师范大学国家草地生态工程实验室,长春,130024
基金项目:国家“九五”科技攻关资助项目 (95 0 0 1 0 0 1 0 3 0 2 )
摘    要:通过田间试验分析了玉米根茬留田对土壤生物活性动态变化的影响,结果表明,玉米根茬留田对提高土壤微生物量碳含量和土壤脲酶、磷酸酶、纤维素酶以及转化酶活性效果显著。动态变化特征表明,各处理的土壤微生物量碳和4种酶活性均在播种后60d左右出现高峰。此时正值作物生育旺盛时期,利于作物生长发育,说明玉米根茬留田配施化肥的培肥土壤效果显著,而且可以保持玉米持续高产稳产。

关 键 词:土壤微生物量碳  土壤  酶活性  玉米  生育期  根茬留田
文章编号:1001-9332(2002)03-0303-04
修稿时间:2001年2月9日

Effects of maize stubble remaining in field on dynamics of soil microbial biomass C and soil enzyme activities
SONG Ri ,WU Chunsheng\,MOU Jinming\,JIANG Yan\ and GUO Jixun\.Effects of maize stubble remaining in field on dynamics of soil microbial biomass C and soil enzyme activities[J].Chinese Journal of Applied Ecology,2002,13(3):303-306.
Authors:SONG Ri    WU Chunsheng\  MOU Jinming\  JIANG Yan\ and GUO Jixun\
Institution:National Laboratory of Grassland Ecological Engineering, Northeast Normal University, College of Agronomy, Jilin Agricultural University, Changchun 130118.
Abstract:This study dealt with the effects of maize stubble remaining in field on dynamics of soil microbial biomass C and soil enzyme actvities. The results showed that maize stubble remaining in field could raise soil microbial biomass C and the actvities of urease,phosphatase,cellulase,and invertase in soil remarkably. According to the dynamics of soil microbial biomass C and activities of the four enzymes,the five characters reached their maximum values about 60 days after sowing,and the crops were in bloom of growth. The results also showed that maize stubble remaining in field had positive effects on improving fertility and keeping high and steady yield of maize.
Keywords:Soil microbial biomass C  Enzyme activity in soil  Corn growth stage    
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