Deficit irrigation scheduling of maize in the semi-arid area of northeast China
文献类型：期刊论文
| 作者 | Yin, Guanghua1; Kang, Zhenjun2,3; Gu, Jian1; Hao, Liang1,2; Cong, Peifei1,2; Liu, Zuoxin1 |
| 刊名 | JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT
 |
| 出版日期 | 2013 |
| 卷号 | 11期号:2页码:1035-1039 |
| 关键词 | Water deficit water use efficiency regulate deficit irrigation water consumption intensity |
| ISSN号 | 1459-0255 |
| 通讯作者 | Yin, GH |
| 中文摘要 | Regulated deficit irrigation (RDI) is one irrigation strategy that can conserve irrigation water and maintain yield. In this paper, we describe an investigation of the timing and efficacy of RDI in an experiment conducted in a waterproof shed on maize in 2009. Various levels of controlled soil water deficit, here expressed as the level of moisture in 30 cm soil layers, including high moisture content (70-75%), middle content (60-65%), and low content (50-55%). Grain yield increased along with evapotranspiration (ET), but the highest level of water use efficiency (WUE) was not consistent with the maximum yield. The amount of irrigation water under deficit conditions was usually between 269.4 mm and 342.7 mm in semi-arid areas. Mild water deficit at the jointing and flowering stages increased WUE by 24.38% and 23.02%, respectively, but decreased WUE by 19.07% at the grain-filling stage. Further differences were observed at the jointing stage (P<0.05). Water consumption intensity (WCI) was used to indicate irrigation timing and degree of RDI. The results of this study indicate that mild water deficit at the jointing stage is a better regulated deficit irrigation strategy for maize in semi-arid regions than deficit at other stages. It may be the optimal irrigation method for increasing maize production in semi-arid areas. |
| 英文摘要 | Regulated deficit irrigation (RDI) is one irrigation strategy that can conserve irrigation water and maintain yield. In this paper, we describe an investigation of the timing and efficacy of RDI in an experiment conducted in a waterproof shed on maize in 2009. Various levels of controlled soil water deficit, here expressed as the level of moisture in 30 cm soil layers, including high moisture content (70-75%), middle content (60-65%), and low content (50-55%). Grain yield increased along with evapotranspiration (ET), but the highest level of water use efficiency (WUE) was not consistent with the maximum yield. The amount of irrigation water under deficit conditions was usually between 269.4 mm and 342.7 mm in semi-arid areas. Mild water deficit at the jointing and flowering stages increased WUE by 24.38% and 23.02%, respectively, but decreased WUE by 19.07% at the grain-filling stage. Further differences were observed at the jointing stage (P<0.05). Water consumption intensity (WCI) was used to indicate irrigation timing and degree of RDI. The results of this study indicate that mild water deficit at the jointing stage is a better regulated deficit irrigation strategy for maize in semi-arid regions than deficit at other stages. It may be the optimal irrigation method for increasing maize production in semi-arid areas. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Food Science & Technology |
| 类目[WOS] | Food Science & Technology |
| 研究领域[WOS] | Food Science & Technology |
| 关键词[WOS] | WATER-USE EFFICIENCY ; WINTER-WHEAT ; ZEA-MAYS ; YIELD ; GROWTH ; CORN ; MANAGEMENT ; DROUGHT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000322369900001 |
| 公开日期 | 2014-07-17 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/16506]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yin, Guanghua,Kang, Zhenjun,Gu, Jian,et al. Deficit irrigation scheduling of maize in the semi-arid area of northeast China[J]. JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT,2013,11(2):1035-1039. |
| APA | Yin, Guanghua,Kang, Zhenjun,Gu, Jian,Hao, Liang,Cong, Peifei,&Liu, Zuoxin.(2013).Deficit irrigation scheduling of maize in the semi-arid area of northeast China.JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT,11(2),1035-1039. |
| MLA | Yin, Guanghua,et al."Deficit irrigation scheduling of maize in the semi-arid area of northeast China".JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT 11.2(2013):1035-1039. |
入库方式： OAI收割
来源：海洋研究所
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