| 玉米生育期内土壤微生物量碳和酶活性动态变化的特征 |
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| 引用本文： | 宋日,吴春胜,牟金明,姜岩.玉米生育期内土壤微生物量碳和酶活性动态变化的特征[J].吉林农业大学学报,2001,23(2):13-16. |
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| 作者姓名： | 宋日 吴春胜 牟金明 姜岩 |
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| 作者单位： | 吉林农业大学农学院, |
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| 基金项目： | 国家科技攻关资助项目 ( 95 0 0 1-0 0 1-0 3 -0 2 ) |
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| 摘 要： | 采用大田试验法研究了玉米生育期内土壤微生物量碳和酶活性动态变化特征。结果表明：玉米播种后，土壤微生物量碳、脲酶、磷酸酶、纤维素酶和转化酶活性迅速上升，约在播种后60d达到最大值，然后开始下降，约在播种后90d出现低谷，随后缓慢上升，约在播种后115d出现第2个小峰值，然后平稳下降。几种处理相比较，以玉米根茬留田＋NPK处理的土壤微生物量碳和各类酶活性为最大。
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| 关 键 词： | 土壤微生物量碱 土壤酶活性 玉米 生育期 动态变化 土壤微生物 根茬还田 |
| 文章编号： | 1000-5684（2001）02-0013-04 |
| 修稿时间： | 2000年4月11日 |
Dynamic Changes of Soil Microbial Biomass Carbon and Soil Enzyme Activities during Growth of Corn |
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| SONG Ri,WU Chun-Sheng,MO Jin-ming,JIANG Yan.Dynamic Changes of Soil Microbial Biomass Carbon and Soil Enzyme Activities during Growth of Corn[J].Journal of Jilin Agricultural University,2001,23(2):13-16. |
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| Authors: | SONG Ri WU Chun-Sheng MO Jin-ming JIANG Yan |
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| Abstract: | The dynamic changes of soil microbial biomass Carbon (C) and soil enzyme activities during growth of corn were studied in field experiment. The results showed that microbial biomass C and the enzyme activities in soil increased rapidly and reached a maximum about 60 days after sowing; decreased and had a minimum value about 90 days after sowing; then increased slowly and reached the second peak about 115 days after sowing and gradually decreased.The microbial biomass C and the activities of urease,phosphatase,cellulase and invertase in soil were the highest in the treatment with corn stubble remaining plus application of NPK. |
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| Keywords: | soil microbial biomass C enzyme activities in soil growth of corn |
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