| Effect of different drip nitrogen fertilizer levels on tomato growth and water consumption | |
| Wang D. | |
| 2004 | |
| 关键词 | fertigation evapotranspiration water use efficiency yield tomato irrigation |
| 页码 | 408-413 |
| 英文摘要 | Afield experiment was conducted to study the effect of drip nitrogen fertigation on tomato growth, yield, evapotranspiration( ET) and water use efficiency (WUE) under polythene film mulched condition. Four different treatments of nitrogen fertilizer levels applied in the experiment were f1:17.5kg (.) ha(-1), f2:54. 8kg (.) ha(-1), f 3:105. 8kg (.) ha(-1) and f 4:202.4kg (.) ha(-1). The soil matric potential at 0.2 m depth under drip emitter was controlled immediately at-20 kPa for four treatments. Results indicated that tomato yields were almost same for all treatments. However, ET increased as fertilizer increased, reached a maximum value at f 2 level, and then decreased. The maximum ET was 307mm and the minimum was 277mm. The WUE had a contrary tendency with that for ET. Thus, nitrogen fertigation had no significant influences on tomato yield, maybe there were enough manure and ammonium di-hydrogen phosphate applied as base fertilizer. |
| 收录类别 | CPCI |
| 会议录出版者 | China Agricultural Univ |
| 语种 | 英语 |
| ISBN号 | 7-109-09448-0 |
| 内容类型 | 会议论文 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/25291]  |
| 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 | Wang D.. Effect of different drip nitrogen fertilizer levels on tomato growth and water consumption[C]. 见:. |
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