Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/gcb.14798 |
Newer and select maize, wheat, and rice varieties can help mitigate N footprint while producing more grain | |
Ying, Hao1; Yin, Yulong1; Zheng, Huifang2; Wang, Yingcheng1; Zhang, Qingsong1; Xue, Yanfang3; Stefanovski, Darko4; Cui, Zhenling1; Dou, Zhengxia4 | |
2019-09-11 | |
发表期刊 | GLOBAL CHANGE BIOLOGY |
ISSN | 1354-1013 |
EISSN | 1365-2486 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Sustainably feeding the growing population amid a changing climate and dwindling resources is a grand challenge facing mankind. Decades-long advancement in crop breeding has progressively elevated yield potential, markedly enhancing global food production capacity. However, relevant impact on reactive N (Nr) emissions associated with crop variety improvement has not been explicitly described. Here, we report multitiered evidence that newer and select maize, wheat, and rice varieties developed in China have the capacity to substantially lower Nr losses while producing more grain. First, we pooled studies featuring side-by-side comparison of different varieties, totaling 269 paired observations, to demonstrate that collectively, relatively newer varieties of maize, wheat, and rice had less Nr emissions (9.6%-23.5%) while yielding more grains (7.3%-11.2%) compared to older varieties under wide-ranging conditions. Next, we built an extended database (142 field studies with 833 observations) and comprehensively evaluated the Nr-loss reduction potential of newer varieties (2000 and after) versus older ones (1985-1999). We found that newer varieties had Nr emission factors (N loss as a percentage of N applied after correcting for background emissions) 18.2%-75.7% less for N2O, 18.3%-75.7% less for NO3-, and -8.5% to 22.8% less for NH3, while producing more grains (16.0%-24.4%). Individual varieties differed markedly in yield-emission scores. A nationwide farmer survey (2.47 million responses) indicated tremendous opportunities for a new way of management intervention. Coupling variety selection with sound N and other agronomic management can help lower N footprint while producing more grain. |
英文关键词 | agronomic and morphological traits grain yield newer varieties reactive N losses sustainability |
领域 | 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000485455400001 |
WOS关键词 | USE EFFICIENCY ; RECENT TRENDS ; NITROGEN ; PRODUCTIVITY ; EMISSIONS ; IMPACT ; YIELD ; ROOT |
WOS类目 | Biodiversity Conservation ; Ecology ; Environmental Sciences |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/186994 |
专题 | 气候变化 资源环境科学 |
作者单位 | 1.China Agr Univ, Coll Resources & Environm Sci, Beijing, Peoples R China; 2.Henan Agr Univ, Coll Agron, Zhengzhou, Henan, Peoples R China; 3.Shandong Acad Agr Sci, Maize Res Inst, Jinan, Shandong, Peoples R China; 4.Univ Penn, Sch Vet Med, Ctr Anim Hlth & Prod, Kennett Sq, PA 19348 USA |
推荐引用方式 GB/T 7714 | Ying, Hao,Yin, Yulong,Zheng, Huifang,et al. Newer and select maize, wheat, and rice varieties can help mitigate N footprint while producing more grain[J]. GLOBAL CHANGE BIOLOGY,2019. |
APA | Ying, Hao.,Yin, Yulong.,Zheng, Huifang.,Wang, Yingcheng.,Zhang, Qingsong.,...&Dou, Zhengxia.(2019).Newer and select maize, wheat, and rice varieties can help mitigate N footprint while producing more grain.GLOBAL CHANGE BIOLOGY. |
MLA | Ying, Hao,et al."Newer and select maize, wheat, and rice varieties can help mitigate N footprint while producing more grain".GLOBAL CHANGE BIOLOGY (2019). |
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