| 土壤耕作和水分管理对水稻土壤肥力性状的影响 |
| |
| 引用本文： | 曾可,江立庚.土壤耕作和水分管理对水稻土壤肥力性状的影响[J].中国农学通报,2010,26(23):234-237. |
| |
| 作者姓名： | 曾可 江立庚 |
| |
| 作者单位： | [1]广西大学作物栽培学与耕作学重点实验室,南宁530005 [2]广西农业技术推广总站,南宁530022 |
| |
| 基金项目： | 广西科学基金，广西科学基金重点项目 |
| |
| 摘 要： | 为了探讨耕作方式和水分管理对水稻土壤肥力性状的影响，以金优253为材料进行大田试验，设置常耕、免耕二种土壤耕作方式，浅水层灌溉、交替灌溉、水气平衡灌溉三种水分管理方式，然后在水稻成熟期测定分析土壤肥力因子的变化。结果表明，土壤碱解氮含量以浅水层灌溉最高，水气平衡灌溉次之，交替灌溉的最低，土壤有效磷含量从高到低分别为水气平衡灌溉、交替灌溉、浅水层灌溉；土壤速效钾含量从高到低分别为交替灌溉、水气平衡灌溉、浅水层灌溉；土壤有机质含量从高到低分别为水气平衡灌溉、浅水层灌溉、交替灌溉；土壤pH值从高到低分别为水气平衡灌溉、交替灌溉、浅水层灌溉。三种灌溉方式下常耕稻田土壤碱解氮、有效磷和有机质含量含量高于免耕稻田，免耕稻田pH值、土壤速效钾含量却高于常耕稻田。水分管理对土壤肥力的影响比耕作方式的影响更大。
|
| 关 键 词： | 猪源性成分 猪源性成分 PCR检测 反应体系 优化 |
| 收稿时间： | 5/4/2010 12:00:00 AM |
| 修稿时间： | 2010/7/17 0:00:00 |
Influence of soil tillage and water irrigation on soil fertility in rice paddy |
| |
| Zeng Ke,Xun Shihong,Wei Shanqing,Jiang Ligeng.Influence of soil tillage and water irrigation on soil fertility in rice paddy[J].Chinese Agricultural Science Bulletin,2010,26(23):234-237. |
| |
| Authors: | Zeng Ke Xun Shihong Wei Shanqing Jiang Ligeng |
| |
| Institution: | 1 Key Laboratory of Crop Cultivation and Farming System of Guangxi University,Nanning 530005;2 Guangxi Agricultural Technology Extension General Station,Nanning 530022) |
| |
| Abstract: | Field experiments were conducted in the late season of 2007 and in the early season of 2008 to compare the differences of soil fertility factors in rice paddy under no tillage,conventional tillage with water layer irrigation,alternation irrigation and wet irrigation.Results showed that the greatest alkali hydrolysable nitrogen content was observed under water layer irrigation followed by wet irrigation and alternation irrigation;the greatest available phosphorus content was observed under wet irrigation followed by alternation irrigation and water layer irrigation;the greatest available potassium content was observed under alternation irrigation followed by wet irrigation and water layer irrigation;the greatest organ matter content was observed under wet irrigation followed by water layer irrigation and alternation irrigation;the greatest pH value was observed under wet irrigation followed by alternation and water layer irrigation.Under the same irrigation pattern,convention tillage field indicated greater contents of alkali hydrolysable nitrogen,available phosphorus and organ matter than no tillage field,while no tillage field indicated greater pH value and greater available potassium content.It can be concluded that water irrigation revealed greater impact on soil fertility than soil tillage. |
| |
| Keywords: | rice soil tillage water irrigation soil fertility |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《中国农学通报》浏览原始摘要信息 |
| 点击此处可从《中国农学通报》下载免费的PDF全文 |
