Increasing rainfed wheat yield by optimizing agronomic practices to consume more subsoil water in the Loess Plateau
文献类型：期刊论文
| 作者 | Yang, Wenjia1; Liu, Weijian1; Li, Yulin2; Wang, Shiwen1,3,4; Yin, Lina1,3,4; Deng, Xiping2,3,4 |
| 刊名 | CROP JOURNAL
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 9期号:6页码:1418-1427 |
| 关键词 | Winter wheat Agronomic practices Soil water consumption Grain yield Loess Plateau |
| ISSN号 | 2095-5421 |
| DOI | 10.1016/j.cj.2021.01.006 |
| 通讯作者 | Wang, Shiwen(shiwenwang@nwsuaf.edu.cn) |
| 英文摘要 | Erratic rainfall and misalignment between the rainy season and the growing season of winter wheat greatly limit rainfed winter wheat yield in the Loess Plateau of China. To increase the grain yield of winter wheat in this region, the effects of different agronomic practices, including adjusting planting pattern (NR, narrow row spacing), increasing seeding rate (high seeding rate, HS), decreasing basal nitrogen rate and increasing top-dressed nitrogen rate (DBN), and replacing an old cultivar with a new cultivar (NC) on wheat yield were investigated for two consecutive years. The results showed that the current grain yield of rainfed winter wheat in the Loess Plateau could be increased to 5879-7093 kg ha(-1) by HS, DBN and NC practices relative to the practice of high-yielding farmers (PF). The increased yield due to HS, DBN and NC was attributed to the higher number of spikes ha(-1), 1000-grain weight, and kernels spike(-1). Before the flowering stage, HS increased soil water consumption (SWC) in 1-3 m subsoil due to the higher plant population compared with that of PF, whereas DBN decreased SWC in the 0-2 m soil layer compared with that of PF. After the flowering stage, HS, DBN, and NC increased SWC by 8-16 mm in 2-3 m subsoil compared to PF. The water use efficiency (WUE) was increased under DBN and NC in comparison with PF. However, the WUE did not increase under HS as it had the highest evapotranspiration among the five treatments. Increasing the use of subsoil water during the late growth stage by optimizing agronomic practices or applying new cultivars with expansive roots should be the primary approach to increase rainfed winter wheat yield in this region. (C) 2021 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. |
| WOS关键词 | USE EFFICIENCY ; WINTER-WHEAT ; SEEDING RATE ; GRAIN-YIELD ; NITROGEN-FERTILIZATION ; SOIL FERTILITY ; DRYLAND WHEAT ; PLANT-DENSITY ; ROOT-GROWTH ; CROP |
| 资助项目 | National Basic Research Program of China[2015CB150402] ; National Key Technology RD Program[2015BAD22B01] ; 111 project of Chinese Education Ministry[B 12007] |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000752819500009 |
| 出版者 | KEAI PUBLISHING LTD |
| 资助机构 | National Basic Research Program of China ; National Key Technology RD Program ; 111 project of Chinese Education Ministry |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/170736]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Shiwen |
| 作者单位 | 1.Northwest A&F Univ, Coll Nat Resources & Environm, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, Coll Life Sci, Yangling 712100, Shaanxi, Peoples R China 3.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Wenjia,Liu, Weijian,Li, Yulin,et al. Increasing rainfed wheat yield by optimizing agronomic practices to consume more subsoil water in the Loess Plateau[J]. CROP JOURNAL,2021,9(6):1418-1427. |
| APA | Yang, Wenjia,Liu, Weijian,Li, Yulin,Wang, Shiwen,Yin, Lina,&Deng, Xiping.(2021).Increasing rainfed wheat yield by optimizing agronomic practices to consume more subsoil water in the Loess Plateau.CROP JOURNAL,9(6),1418-1427. |
| MLA | Yang, Wenjia,et al."Increasing rainfed wheat yield by optimizing agronomic practices to consume more subsoil water in the Loess Plateau".CROP JOURNAL 9.6(2021):1418-1427. |
入库方式： OAI收割
来源：地理科学与资源研究所
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