Effect of the manure with different C/N under different doses of N fertilizer on the content of soil NO-3
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DOI：10.7606/j.issn.1000-7601.2006.04.07
Key Words: manure  nitrogen fertilizer  soil NO-3
Author NameAffiliation
LIU Xing-ren Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences，Beijing 100101，China；Graduate School of CAS，Beijing 100039，China 
REN Jian-qiang College of Resources and Environment China Agricultural University，Beijing 100094，China；Institute of Agricultural Resources ＆ Regional Planning Chinese Academy of Agricultural Sciences，Beijing 100081，China 
LIU Jian-ling College of Resources and Environment Agricultural University of，Hebei，Baoding 071001，China 
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Abstract:
      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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