Optimizing Nitrogen Fertilizer Rate and Investigating Mechanism Driving Grain Yield Increase for Rice in the Middle Reaches of the Yangtze River
文献类型：期刊论文
| 作者 | Xu, Tianxiang2; Zhang, Hailin2; Gong, Jie1; Wang, Ling1; Wang, Yongsheng4; Qiu, Weiwen3; Liu, Muxing2; Li, Shenglong2; Fei, Yuanhang2; Li, Qi2 |
| 刊名 | PLANTS-BASEL
 |
| 出版日期 | 2025-07-27 |
| 卷号 | 14期号:15页码:2326 |
| 关键词 | Oryza sativa L. grain yield N fertilizer N balance N loss |
| ISSN号 | 2223-7747 |
| DOI | 10.3390/plants14152326 |
| 产权排序 | 3 |
| 文献子类 | Article |
| 英文摘要 | Investigating the factors influencing rice grain yield (GY) is critical for optimizing nitrogen (N) management and enhancing resource use efficiency in rice cultivation. However, few studies have comprehensively investigated the factors affecting rice GY, considering an entire influence chain encompassing rice N uptake, growth indicators, and GY components. In this study, field experiment with six different N fertilizer rates (0, 60, 120, 180, 225, and 300 kg N ha(-1), i.e., N0, N60, N120, N180, N225, and N300) was conducted in the Jianghan Plain in the Middle Reaches of the Yangtze River, China, to comprehensively elucidate the factors influencing rice GY from aspects of rice N uptake, growth indicators, and GY components and determine the optimal N fertilizer rate. The results showed that rice GY and N uptake initially increased and then either stabilized or declined with higher N fertilizer rate, while apparent N loss escalated with increased N fertilizer rate. The application of N fertilizer significantly promoted the increase in straw N uptake, which was significantly positively correlated with growth indicators (p < 0.05). Among all GY components, panicle number per hill was the most significant positive factor influencing rice GY, and it was significantly positively correlated with all rice growth indicators (p < 0.05). In addition, N180 was the optimal N fertilizer rate, ensuring more than 95% of maximum GY and reducing N loss by 74% and 39% compared to N300, respectively. Meanwhile, the average N balance for N180 remained below 60 kg N ha(-1). In conclusion, optimizing the N fertilizer application in paddy fields can effectively maintain stable rice GY and minimize environmental pollution. |
| URL标识 | 查看原文 |
| WOS关键词 | LEAF-AREA INDEX ; PADDY FIELDS ; MANAGEMENT ; RESPONSES ; BALANCE ; SYSTEM ; SPAD |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001550692800001 |
| 出版者 | MDPI |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/215541]  |
| 专题 | 区域可持续发展分析与模拟院重点实验室_外文论文 |
| 通讯作者 | Yi, Jun; Huang, Chuanqin |
| 作者单位 | 1.Hefeng Cty Cultivated Land Qual & Fertilizer Work, Enshi 445000, Peoples R China; 2.Cent China Normal Univ, Hubei Prov Key Lab Geog Proc Anal & Simulat, Wuhan 430079, Peoples R China; 3.New Zealand Inst Plant & Food Res Ltd, Private Bag 3230, Hamilton 3240, New Zealand; 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China; 5.Huazhong Agr Univ, Key Lab Arable Land Conservat Middle & Lower Reach, Minist Agr, Wuhan 430070, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Tianxiang,Zhang, Hailin,Gong, Jie,et al. Optimizing Nitrogen Fertilizer Rate and Investigating Mechanism Driving Grain Yield Increase for Rice in the Middle Reaches of the Yangtze River[J]. PLANTS-BASEL,2025,14(15):2326. |
| APA | Xu, Tianxiang.,Zhang, Hailin.,Gong, Jie.,Wang, Ling.,Wang, Yongsheng.,...&Huang, Chuanqin.(2025).Optimizing Nitrogen Fertilizer Rate and Investigating Mechanism Driving Grain Yield Increase for Rice in the Middle Reaches of the Yangtze River.PLANTS-BASEL,14(15),2326. |
| MLA | Xu, Tianxiang,et al."Optimizing Nitrogen Fertilizer Rate and Investigating Mechanism Driving Grain Yield Increase for Rice in the Middle Reaches of the Yangtze River".PLANTS-BASEL 14.15(2025):2326. |
入库方式： OAI收割
来源：地理科学与资源研究所
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