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NO3-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NO3-残留量的影响不显著,在N3,N4水平下,M1能够增加土壤NO3-的残留量,M2和M3能够降低土壤NO3-的残留量。N3M1,N4M1处理的土壤NO3-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。
Effect of different C/N manure on the content of soil NO3^- under different doses of N fertilizer was discussed. The results showed that there was no significant effect on soil NO3^- by applying the different manure mixed with low doses of nitrogen fertilizer. Soil NO3^- increased by applying the M1 accompanying with high doses of nitrogen fertilizer. But soil NO3^- decreased by applying the M2 and M3 mixed with high doses of nitrogen fertilizer. Soil NO3^- of N3M1 and N4M1 treatment increased by 11.6 % and 14.4 % respectively, compared with N3 and N4. Soil NO3^- 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 NO3^-.
出处
《干旱地区农业研究》
CSCD
北大核心
2006年第4期30-32,共3页
Agricultural Research in the Arid Areas
基金
河北省自然科学基金项目(300130)
河北省科技攻关项目
