The effect of long-term fertilization on crop production, soil nutrients and soil CO(2) and N(2)O fluxes
文献类型：会议论文
| 作者 | Dong Y. H. ; Zhu O. Y. ; Liu S. L. ; Ieee |
| 出版日期 | 2009 |
| 关键词 | Long-term fertilization Soil nutrient Crop yields Carbon dioxide (CO(2)) Nitrous oxide (N(2)O) chemical-properties organic-matter loess plateau carbon fractions yield china fertility manure wheat nitrogen |
| 页码 | 4010-4013 |
| 英文摘要 | A study was conducted to assess the effect of long-term fertilization on soil fertility, crop production and soil CO(2) and N(2)O fluxes. The experiment was initiated in 1990 at the Yucheng Comprehensive Experiment Station located at the North China Plain. Five treatments comprising no fertilizer (0), NK, NP, PK and NPK were included. The yield effects of the chemical fertilizers were in the order of N>P>K. After long-term fertilization, only NPK treatment showed significant higher yields of wheat and maize. Chemical properties of soil were obviously affected by long-term fertilization practices. Soil organic carbon (SOC) increased in all fertilization treatments compared to initial content in the surface depth. While in the depth of 20-40cm and 40-60cm, all treatments showed decreased in SOC content. Total N of surface soil was higher in the NP, NK and NPK treatments with N application and with no significant difference in subsoil (20-60 cm) in all treatments. Available N in the 0-20cm and 40-60cm showed significant higher in NP and NPK treatments. Available P and K increased in treatments received P or K fertilizers respectively. After long-term fertilization, soil CO(2) emissions were in the increasing order of no fertilizer, NK, PK, NP and NPK. The differences of CO(2) fluxes were related with the chemical properties after long-term fertilization. Soil N(2)O flux was also affected by the application of N fertilizer during the measurement stage. No fertilizer and PK treatments showed lower N(2)O emissions. NP, NK and NPK showed higher N(2)O emission and obvious difference with no fertilizer. |
| 收录类别 | CPCI |
| 会议录出版者 | Ieee |
| 语种 | 英语 |
| ISBN号 | 978-1-4244-2901-1 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/25076]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Dong Y. H.,Zhu O. Y.,Liu S. L.,et al. The effect of long-term fertilization on crop production, soil nutrients and soil CO(2) and N(2)O fluxes[C]. 见:. |
入库方式： OAI收割
来源：地理科学与资源研究所
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