全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

控释肥对土壤氮素反硝化损失和N2O排放的影响

Keywords: 控释肥,尿素,硝化反硝化,N2O排放

Full-Text   Cite this paper   Add to My Lib

Abstract:

在实验室培养条件下,研究了3种控释肥对土壤氮素硝化反硝化损失和N2O排放的影响。结果表明,控释肥具有明显控制氮素释放的作用。在培养的前23d,控释肥处理的土壤NH+4-N含量低于尿素处理,而后则高于尿素处理。各肥料处理土壤NO-3-N含量均随培养时间逐渐增加,但不同肥料处理间差异不显著。28d培养期间,施入控释肥的土壤反硝化氮损失量为30.33~30.91mgN·kg-1土,比施加尿素处理土壤低13.83~14.41mgN·kg-1土,差异达到显著水平(P<0.05),控释肥降低氮肥的反硝化损失达3.45~3.60个百分点。控释肥处理土壤N2O累积释放量约为15.71~20.45mgN·kg-1土,比尿素处理高0.86~5.60mgN·kg-1土,但差异未达到显著水平。

References

[1]  Ruan W R,Johnson C V,Improving nitrogen use efficiency for cereal production,Agronomy Journal,1999.
[2]  Pérez T,Trumbore S E,Tyler S C,Identifyin gthe agricultural imprint on the global N2O budget using stable isotopes,Journal of Geophysical Research,2001.
[3]  Aulakh M S,Doran J W,Mosier A R,Soil denitrifyication-significance,measurement,and effect of management,Advances in Soil Sciences,1992.
[4]  Hauck R D,Nitrogen fertilizer effects on nitrogen cycle processesd,Stockholm:Ecol.Bull,1981.
[5]  Ryden J C,Lund L J,Nature and extent of directly measured denitrification losses from some irrigatied vegetable crop production units,Fertilizer Research,1995.
[6]  Sanchez L,Diez J A,Vallejo A,Denitrification losses from irrigated crops in central Spain,Soil Biology and Biochemistry,2001(9).
[7]  董玉红,欧阳竹,李运生,肥料施用及环境因子对农田土壤CO2和N2O排放的影响,农业环境科学学报,2005(5).
[8]  丁洪,王跃思,李卫华,玉米-潮土系统中不同氮肥品种的反硝化损失与N2O排放量,中国农业科学,2004(12).
[9]  梁东丽,方日尧,李生秀,硝态氮、铵态氮肥对旱地上壤氧化亚氮排放的影响,干旱地区农业研究,2007(1).
[10]  李方敏,樊小林,刘芳,控释肥料对稻田氧化亚氮排放的影响,应用生态学报,2004(11).
[11]  鲁如坤,土壤农业化学分析方法,北京:中国农业科技出版社,1999.
[12]  Mosier A R,Acetylene inhibition of ammonium oxidation in soil,Soil Biology and Biochemistry,1980.
[13]  唐拴虎,陈建生,徐培智,控释肥料氮素释放与水稻吸收动态研究,土壤通报,2004(2).
[14]  Stehfest E,Bouwman L,N2O and NO emission from agricultural fields and soils undernatural vegetatiott:Summarizing available measurement data and modeling of global annual emissions,NUTRIENT CYCLING IN AGROECOSYSTEMS,2006.
[15]  Weiguo Cheng,Haruo Tsurutaa,Guanxiong Chen,N2O and NO production in various Chinese agricultural soils by nitrification,Soil Biology and Biochemistry,2004(6).
[16]  Bandibas J,Vermoesen A,De Groot C J,The effect of different moisture regimes and soil characteristics on nitrous oxide emission and consumption by different soils,Soil Science,1994.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133