| 液体地膜覆盖对棉田土壤微生物和酶活性的影响 |
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| 引用本文： | 杨青华,韩锦峰,贺德先.液体地膜覆盖对棉田土壤微生物和酶活性的影响[J].生态学报,2005,25(6):1312-1317. |
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| 作者姓名： | 杨青华 韩锦峰 贺德先 |
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| 作者单位： | 河南农业大学农学院,郑州,450002 |
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| 基金项目： | 河南省科技攻关资助项目(991030304)~~ |
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| 摘 要： | 通过液体地膜不同用量覆盖棉田对土壤微生物数量和酶活性的影响研究表明适量液体地膜(112.5～150kg/hm2)覆盖棉田显著增加土壤微生物细菌、放线菌和真菌数量,增强土壤过氧化氢酶、脲酶、转化酶、中性磷酸酶和多酚氧化酶活性,且这种效应受棉花生长发育进程的影响。表明液体地膜覆盖棉田有益于土壤物质的转化、累积,提高土壤的肥力,对土壤化学特性无不良影响。
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| 关 键 词： | 液体地膜 覆盖 棉花生长期 土壤微生物 土壤酶 |
| 文章编号： | 1000-0933(2005)06-1312-06 |
| 收稿时间： | 2004/2/12 0:00:00 |
| 修稿时间： | 2004/6/28 0:00:00 |
Effects of liquid film on the quantity of microorganisms and activity of enzymes in a cotton field |
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| YANG Qinghu,HAN Jinfeng and HE Dexian.Effects of liquid film on the quantity of microorganisms and activity of enzymes in a cotton field[J].Acta Ecologica Sinica,2005,25(6):1312-1317. |
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| Authors: | YANG Qinghu HAN Jinfeng and HE Dexian |
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| Institution: | College of Agriculture; He\'nan Agricultural University; Zhengzhou; China |
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| Abstract: | Liquid film is a newly-developed organic macromolecular compound. A thin, solidified crust forms after the diluted compound was sprayed on the soil surface. It was widely reported that after the soil is treated, soil temperature, moisture and porosity increases, and bulk density does not increase. As a result, soil physical, chemical and biological properties differ when compared to non-treated soil. Soil microorganisms and enzymes are main components of soil biochemical properties. They play an important r... |
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| Keywords: | liquid film mulch cotton growing stage soil microorganism soil enzyme |
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