| Role of straw mulching in non-continuously flooded rice cultivation | |
| Qin, JT; Hu, F; Zhang, B; Wei, ZG; Li, HX | |
| 刊名 | AGRICULTURAL WATER MANAGEMENT
 |
| 2006-06-16 | |
| 卷号 | 83期号:3页码:252-260 |
| 关键词 | agronomic traits IWUE mulching rice cultivation under non-flooded condition seasonal drought WUE |
| ISSN号 | 0378-3774 |
| DOI | 10.1016/j.agwat.2006.01.001 |
| 通讯作者 | Hu, F() |
| 英文摘要 | Rice (Oryza sativa L.) cultivation under non-flooded (NF) condition is a new alternative to the conventional flooded (CF) rice cultivation system in the regions where rainfall and fresh water resources are limited. Non-flooded rice cultivation may mediate rice growth performance and mulching may be good practice to reduce evapotranspiration and increase water use efficiency (WUE). The research objectives of this study were to investigate the effects of non-flooded cultivation with straw mulching on the rice agronomic traits and water use efficiency of the second rice cropping season Oate rice). The treatments were conventional flooded rice cultivation, non-flooded rice cultivations without (NF-ZM) and with rice straw mulching (NF-SM). Irrigation water was 19950 m(3) ha(-1) in 2003 and 15,850 m(3) ha(-1) in 2004 in the CF treatments and 7200 m(3) ha(-1) in 2003 and 5045 m(3) ha(-1) in 2004 in the non-flooded rice fields (NF-ZM and NF-SM treatments). The field measurements showed that water seepage was 13,442 m(3) ha(-1) in the CF treatment, 5510 m(3) ha(-1) in the NF-ZM treatment and 5424 m(3) ha(-1) in the NF-SM treatment. Rice straw mulching decreased evapotranspiration by 33% and 63% (in 2003), 36.5% and 57.1% (in 2004) to the NF-ZM treatment and CF treatment, respectively. Compared with the NF-ZM treatment, mulch application significantly increased the leaf area per plant, main root length, tap root length and root dry weight per plant of crop. The yield of the NF-SM treatment (2003: 6489 kg/hm(2); 2004: 8574.8 kg/hm(2)) was similar with the value of the CF treatment (2003: 6811.5; 2004: 8630.5 kg/hm(2)), and much higher than the NF-ZM treatment (2003: 4716; 2004: 6394.8 kg/hm(2)). The order of irrigation water use efficiency (IWUE) and water use efficiency were as follows: NF-SM > NF-ZM > CF. (c) 2006 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | WATER-MANAGEMENT-PRACTICES ; USE EFFICIENCY ; LOWLAND RICE ; PRODUCTIVITY ; IRRIGATION ; SYSTEMS ; BALANCE ; YIELD ; SOIL |
| WOS研究方向 | Agriculture ; Water Resources |
| WOS类目 | Agronomy ; Water Resources |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000238297500007 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2558532 |
| 专题 | 南京土壤研究所 |
| 通讯作者 | Hu, F |
| 作者单位 | 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Peoples R China 2.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin, JT,Hu, F,Zhang, B,et al. Role of straw mulching in non-continuously flooded rice cultivation[J]. AGRICULTURAL WATER MANAGEMENT,2006,83(3):252-260. |
| APA | Qin, JT,Hu, F,Zhang, B,Wei, ZG,&Li, HX.(2006).Role of straw mulching in non-continuously flooded rice cultivation.AGRICULTURAL WATER MANAGEMENT,83(3),252-260. |
| MLA | Qin, JT,et al."Role of straw mulching in non-continuously flooded rice cultivation".AGRICULTURAL WATER MANAGEMENT 83.3(2006):252-260. |
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