不同氮水平下有机肥碳氮比对土壤硝态氮残留量的影响

刘杏认; 任建强; 刘建玲

刘杏认,任建强,刘建玲.不同氮水平下有机肥碳氮比对土壤硝态氮残留量的影响[J].干旱地区农业研究,2006,(4):30~32

不同氮水平下有机肥碳氮比对土壤硝态氮残留量的影响

Effect of the manure with different C/N under different doses of N fertilizer on the content of soil NO^-₃

DOI：10.7606/j.issn.1000-7601.2006.04.07

中文关键词: 有机肥氮肥土壤NO^-₃

英文关键词:manure nitrogen fertilizer soil NO^-₃

基金项目:河北省自然科学基金项目(300130)；河北省科技攻关项目

作者	单位
刘杏认	中国科学院地理科学与资源研究所,北京 100101；中国科学院研究生院,北京 100039
任建强	中国农业大学资源与环境学院,北京 100094；中国农业科学院农业资源与农业区划研究所,北京 100081
刘建玲	河北农业大学资源与环境学院，河北保定 071001

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中文摘要:

采用盆栽试验的方法,研究N0(不施氮)、N1(施N 0.067 g/kg)、N2(施N 0.133 g/kg)、N3(施N 0.266g/kg)、N4(施N 0.400 g/kg)4个不同氮水平下施入M1(C/N:31.8)、M2(C/N:42.5)、M3(C/N:66.6)不同C/N的有机肥对土壤NO^-₃残留量的影响。结果表明:在N0,N1,N2水平下,3种不同C/N的有机肥对土壤NO^-₃残留量的影响不显著,在N3,N4水平下,M1能够增加土壤NO^-₃的残留量,M2和M3能够降低土壤NO^-₃的残留量。N3M1,N4M1处理的土壤NO^-₃含量分别比N3,N4处理增加了11.6%和14.4%;N3M2,N3M3处理分别比N3处理降低了15.9%和37.9%;N4M2,N4M3处理与N4处理相比差异不显著。

英文摘要:

Effect of different C/N manure on the content of soil NO^-₃ under different doses of N fertilizer was discussed.The results showed that there was no significant effect on soil NO^-₃ by applying the different manure mixed with low doses of nitrogen fertilizer.Soil NO^-₃ increased by applying the M1 accompanying with high doses of nitrogen fertilizer.But soil NO^-₃ decreased by applying the M2 and M3 mixed with high doses of nitrogen fertilizer.Soil NO^-₃ of N3M1 and N4M1 treatment increased by 11.6% and 14.4% respectively,compared with N3 and N4.Soil NO^-₃ of N3M2 and N3M3 treatment decreased by 15.9% and 37.9% respectively,compared with N3.There was no significant difference between the treatments of N4M2,N4M3 and N4 in effect on soil NO^-₃.

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