| 生物黑炭对马铃薯块茎形成期根际物理性状及速效养分的影响 |
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| 引用本文： | 刘志华,李晓梅,盖兆雪,张少良,马丽,李通,丛聪,王宏燕.生物黑炭对马铃薯块茎形成期根际物理性状及速效养分的影响[J].中国马铃薯,2014(3):159-165. |
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| 作者姓名： | 刘志华 李晓梅 盖兆雪 张少良 马丽 李通 丛聪 王宏燕 |
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| 作者单位： | 东北农业大学资源与环境学院,黑龙江哈尔滨150030 |
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| 基金项目： | 国家自然基金（41301316）; 黑龙江省科技攻关项目（GZ11B105）; 黑龙江省博士后科研启动基金 |
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| 摘 要： | 本研究以两个马铃薯品种为试验材料,采用大田试验,设6个处理:对照(未施化肥和生物黑炭)、F(单施常规肥,尿素10 kg/667m2、二铵20 kg/667m2、硫酸钾10 kg/667m2)、B1(2 t/hm2生物黑炭)、B1F(2 t/hm2生物黑炭+常规肥)、B2(4 t/hm2生物黑炭)及B2F(4 t/hm2生物黑炭+常规肥),研究生物黑炭对马铃薯块茎形成期土壤物理性状及速效养分的影响,为马铃薯的栽培管理和生物黑炭的应用提供理论依据。结果表明,低量生物黑炭处理(2 t/hm2)对土壤pH、容重和总孔隙度无显著性影响;高量生物黑炭处理(4 t/hm2)显著增加土壤pH值和有机碳含量,降低土壤容重,增加土壤总孔隙度,降低土壤速效氮、速效磷和速效钾含量。总的来说,生物黑炭改善马铃薯块茎形成期土壤物理性状,影响速效养分含量。
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| 关 键 词： | 生物黑炭 容重 速效氮 速效磷 速效钾 有机碳 |
Effects of Biochar on Rhizospheric Physical Properties and Available Nutrients in Potato＇s Tuber Formation Stage |
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| LIU Zhihua,LI Xiaomei,GAI Zhaoxue,ZHANG Shaoliang,MA Li,LI Tong,CONG Cong,WANG Hongyan.Effects of Biochar on Rhizospheric Physical Properties and Available Nutrients in Potato＇s Tuber Formation Stage[J].Chinese Potato,2014(3):159-165. |
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| Authors: | LIU Zhihua LI Xiaomei GAI Zhaoxue ZHANG Shaoliang MA Li LI Tong CONG Cong WANG Hongyan |
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| Institution: | ( College of Resources and Environment, Northeast Agricultural University, Harbin, Heilongjiang 150030, China ) |
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| Abstract: | The experiment using two potato cultivars as plant materials was carried out in the field with six treatments,control（no fertilizer and biochar）,F（traditional fertilizer,i.e.urea 10 kg,diammonium phosphate 20 kg and potassium sulphate 10 kg based on 667m^2）,B1（2 t/ha biochar）,B1F（2 t/ha biochar plus traditional fertilizer）,B2（4 t/ha biochar） and B2F（4 t/ha biochar plus traditional fertilizer）.The purpose of this research was to provide basic information for potato cultivation and biochar＇s application.Samples were taken in the stage of tuber formation to determine the physical properties and available nutrients.Low rate of biochar（2 t/ha） had no effects on pH value,bulk density and total porosity.High rate of biochar（4 t/ha） increased pH value,organic carbon contents and total porosity,while bulk density was decreased.The available nitrogen,phosphorus and potassium contents were decreased at high rate of biochar.In general,biochar improved the physical properties and influenced the available nutrients＇ contents. |
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| Keywords: | biochar bulk density available nitrogen available phosphorus available potassium organic carbon |
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