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首页> 外文期刊>Journal of environmental biology >Soil properties and enzyme activities as affected by biogas slurry irrigation in the Three Gorges Reservoir areas of China
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Soil properties and enzyme activities as affected by biogas slurry irrigation in the Three Gorges Reservoir areas of China

机译：三峡库区沼液灌溉对土壤性质和酶活性的影响。

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摘要

Biogas slurry, as a quality organic fertilizer, is widely used on large scale livestock farmland in Southwest China. In the present study, slurry collected from anaerobic tank of dairy farm was used to irrigate farmland having typical purple soil in Chongquing, China. The study revealed that irrigation with biogas slurry increased soil ammonium nitrogen and soil nitrate by 47.8 and 19 % respectively as compared to control check. The average soil available phosphorus and soil phosphorus absorption co-efficient changed slightly. Relative enzyme activities of N and P transformation were indicated by catalase, urease, invertase and phosphatase activity. Irrigation period and irrigation quantity were selected as variable factor. Catalase, invertase and urease activity was highest when irrigation period and irrigation quantitiy was 4 days and 500 ml; whereas highest phosphatase activity increased significantly in purple irrigated by biogas slurry. The result of the present study is helpful in finding optimum irrigation conditions required for enzyme activity within defined range. It further reveals that biogas slurry enriches soil with various nutrients by enhancing N, P content and enzyme activities as well as it also deals with large number of biogas slurry for protecting the environment.
机译：沼液作为一种优质的有机肥料，被广泛用于西南地区的大规模畜牧业。在本研究中，使用从奶牛场厌氧池收集的淤浆灌溉中国重庆地区典型的紫色土壤。研究表明，与对照检查相比，用沼液灌溉使土壤铵态氮和土壤硝酸盐分别增加了47.8％和19％。平均土壤有效磷和土壤磷吸收系数略有变化。 N和P转化的相对酶活性由过氧化氢酶，脲酶，转化酶和磷酸酶活性指示。选择灌溉期和灌溉量作为变量因子。当灌溉期和灌溉量为4天500 ml时，过氧化氢酶，转化酶和脲酶活性最高。而在以沼液灌溉的紫色中，最高的磷酸酶活性显着增加。本研究的结果有助于找到在规定范围内酶活性所需的最佳灌溉条件。它进一步揭示了沼液通过提高氮，磷含量和酶的活性，使土壤富含各种养分，并且还处理了大量沼液以保护环境。

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  • 来源
    《Journal of environmental biology》 |2015年第2期|513-520|共8页
  • 作者

    Chen Shiling; Yu Weiwei; Zhang Zhi; Luo Surong;

  • 作者单位

    Chongqing Univ, State Minist Educ, Key Lab Gorges Reservoir Reg Ecoenvironm 3, Chongqing 400045, Peoples R China;

    Chongqing Jiaotong Univ, Key Lab Hydraul & Waterway Engn, Minist Educ, Chongqing 400074, Peoples R China;

    Chongqing Univ, State Minist Educ, Key Lab Gorges Reservoir Reg Ecoenvironm 3, Chongqing 400045, Peoples R China;

    Chongqing Univ, State Minist Educ, Key Lab Gorges Reservoir Reg Ecoenvironm 3, Chongqing 400045, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Biogas Slurry Irrigation; Soil Properties; Enzyme Activities;

    机译：沼液灌溉;土壤特性;酶活性;

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