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Extended US travel ban harms global science 期刊论文
NATURE, 2020, 579 (7797) : 9-9
作者:  Ajami, Nadim J.;  Wargo, Jennifer A.
收藏  |  浏览/下载:9/0  |  提交时间:2020/07/03

From preparing for pandemics to boosting crop yields, Nigerian scientists who work and train abroad are making the world safer. Now that'  s under threat.


From preparing for pandemics to boosting crop yields, Nigerian scientists who work and train abroad are making the world safer. Now that'  s under threat.


  
Policy distortions, farm size, and the overuse of agricultural chemicals in China 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2018, 115 (27) : 7010-7015
作者:  Wu, Yiyun;  Xi, Xican;  Tang, Xin;  Luo, Deming;  Gu, Baojing;  Lam, Shu Kee;  Vitousek, Peter M.;  Chen, Deli
收藏  |  浏览/下载:9/0  |  提交时间:2019/11/27
crop yield  environmental protection  fertilizer use efficiency  socioeconomic barriers  urbanization  
Future warming increases probability of globally synchronized maize production shocks 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2018, 115 (26) : 6644-6649
作者:  Tigchelaar, Michelle;  Battisti, David S.;  Naylor, Rosamond L.;  Ray, Deepak K.
收藏  |  浏览/下载:11/0  |  提交时间:2019/11/27
climate change  food security  price volatility