MENG Tingting,YANG Liangyan,KONG Hui,et al.Effects of Application Amount of Bio-organic Fertilizer on Soil Organic Carbon Components and Enzyme Activities[J].Northern Horticulture,2022,(17):89-91.[doi:10.11937/bfyy.20220507]
生物有机肥施用量对土壤有机碳组分及酶活性的影响
- Title:
- Effects of Application Amount of Bio-organic Fertilizer on Soil Organic Carbon Components and Enzyme Activities
- 关键词:
- 生物有机肥; 有机碳组分; 酶活性; 施用量; Pearson相关分析
- Keywords:
- bio-organic fertilizer; organic carbon composition; enzyme activity; application amount; Pearson correlation analysis
- 文献标志码:
- A
- 摘要:
- 以塿土为试材，采用室内盆栽培养方法，设置0（T0）、10 g ?kg-1（T1）、20 g ?kg-1（T2）、30 g ?kg-1（T3）、40 g ?kg-1（T4）5个生物有机肥施用水平，研究了生物有机肥施用量对土壤有机碳（SOC）、溶解性有机碳（DOC）、易氧化性有机碳（ROC）、微生物生物量碳（MBC）含量及过氧化氢酶、蔗糖酶活性的影响，以期为陕西关中塿土区生物有机肥的施用提供参考依据。结果表明：生物有机肥可显著增加SOC、DOC、ROC、MBC含量及过氧化氢酶、蔗糖酶的活性。在整个培养期内，SOC含量随着时间的延长而降低，DOC、ROC、MBC及蔗糖酶和过氧化氢酶活性随着时间的延长而增加。Pearson相关分析表明，除蔗糖酶外，有机碳组分间及有机碳组分与过氧化氢酶呈极显著正相关关系。生物有机肥的施用提高了塿土有机碳活性组分含量和酶活性，但各组分的最大值对施用量的反映不同。
- Abstract:
- Taking lou soil as the test material,the indoor potted cultivation method was used,0 (T0),10 g ?kg-1 (TI),20 g ?kg-1 (T2),30 g ?kg-1 (T3),40 g ?kg-1 (T4),5 biological organic fertilizer fertilization level were set up,the biological organic fertilizer seems to organic carbon (SOC),dissolved organic carbon (DOC),radily oxidizable organic carbon (ROC),microbial biomass carbon (MBC) contents and the influence of catalase,sucrase activity were studied,in order to provide reference for the application of biological organic fertilizer in the agricultural area of China.The results showed that the contents of SOC,DOC,ROC,MBC,catalase and sucrase could be significantly increased by bio-organic fertilizer.With the extension of culture time,SOC content decreased,while the content of other carbon components and enzyme activity increased.Pearson correlation analysis showed that,except for sucrase,there were significant positive correlations between organic carbon components and catalase.The application of biological organic fertilizer increased the content of active organic carbon components and enzyme activities in soil.However,the maximum values of each component varied in response to the application rate.
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备注/Memo
第一作者简介：孟婷婷（1992-），女，硕士，工程师，现主要从事水土资源高效利用等研究工作。E-mail:1498643610@qq.com.责任作者：刘金宝（1989-），男，博士研究生，工程师，现主要从事高光谱遥感等研究工作。E-mail：jinbaoliu@xaut.edu.cn.基金项目：陕西省科技成果转移与推广计划资助项目（2021CGBX-03）；长安大学重点科研平台开放基金资助项目（300102351501）。收稿日期：2022-02-14