Effect of long-term fertilization on soil fertility of wheat (Triticum aestivum)-corn (Zea mays) double cropping system in China
文献类型：SCI/SSCI论文
| 作者 | Wu L. F. ; Zhu O. Y. |
| 发表日期 | 2006 |
| 关键词 | wheat corn cropping system long-term fertilization soil fertility rice |
| 英文摘要 | A 12-year field trial was carried out during 1990-2001 to evaluate effects of fertilization on soil fertility under continuous wheat (Triticum aestivum L. emend.Fiori & Paol)-corn (Zea mays L.) double cropping system in the North China Plain. Total soil nitrogen of topsoil (0-20 cm) increased significantly with time in the treatments with N application, such as NPK, NP and NK treatments and those of subsoil (20-60 cm) were no different in all treatments. The changes of available soil N were very similarunder each treatment, which increased before October-1996 then decreased with fluctuation. Both total soil P and available soil P of topsoil (0-20 cm) increased markedly with time in the treatments with P application such as NPK, NP and PK, while those in subsoil (20-60 cm) remained relative stable and no significant difference in all treatments. The changes of total soil K fluctuated very much and were similar under each treatment, however, available soil K of topsoil (0-20 cm) increased significantly with time in treatments with K application such as NPK, NK and PK, while decreased slightly in K-omitted treatments, those in subsoil (20-60 cm)decreased slightly and showed no distinct differences in all treatments. With time, soil organic matter in topsoil (0-20 cm) maintained relative stable and those in 20-60 cm depth soil decreased slightly in all treatments. Balanced use of N, P and K is required to maintain soil fertility. |
| 出处 | Indian Journal of Agricultural Sciences |
| 卷 | 76 |
| 期 | 9 |
| 页 | 521-525 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0019-5022 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/22787]  |
| 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 | Wu L. F.,Zhu O. Y.. Effect of long-term fertilization on soil fertility of wheat (Triticum aestivum)-corn (Zea mays) double cropping system in China. 2006. |
入库方式： OAI收割
来源：地理科学与资源研究所
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