| 1 | Study on Cotton Nitrogen Diagnosis and Topdressing Recommendation in North Xinjiang,China显示文摘Field experiments were conducted to study cotton nitrogen diagnosis and topdressing recommen-dation by measuring cotton tissue NO-3 concentration with Reflectoquant . Results showed that the order ofNO-3 concentration in different cotton plant tissues is petiole > stem > leaf, and upper parts> lower parts.There was significant change in each growth period, which was, NO-3 concentration in budding-blooming peri-od was the highest whereas it was the lowest in full blooming period. NO-3 concentration in the 4th expandingpetiole is relatively stable and can sensitively indicate cotton nitrogen state so it was chosen as diagnosis tissue.NO-3 content in budding-blooming period was significantly correlated with seed-cotton yield so it was chosen asdiagnosis period. Primary cotton's nitrogen diagnosis index and amount of topdressing was formulated by re-gression of NO-3 concentration against seed-cotton yield. It was not only rapid and accurate but also time-savingand flexible by using Reflectoquant to diagnose cotton nitrogen states and make side-dressing recommenda-tion, so it is an agricultural technique with promising prospect. | WEI Chang-zhou, ZHANG Fu-suo, ZHU He-ming, HOU Zhen-an, GUO Guan-shan and BAO Bai-yang(Research Center of Xinjiang Crop High-Yield, Shihezi University, Shihezi 832000, P. R. China Collegeof Resources and Environment, China Agricultural University , Beijing 100094 , P. R. China AgricultureExtension Center, Fangcaohu Farm , Xinjiang Production and Construction Corps , Changji 831100,P. R. China Agriculture Extension Center , Xinhu Farm , Xinjiang Productionand Construction Corps , Changji 831100 , P. R. China) | 2002 | Agricultural Sciences in China2002，1，12： | 1 |
| 3 | Electron-ion collider in China显示文摘Lepton scattering is an established ideal tool for studying inner structure of small particles such as nucleons as well as nuclei.As a future high energy nuclear physics project,an Electron-ion collider in China(EicC)has been proposed.It will be constructed based on an upgraded heavy-ion accelerator,High Intensity heavy-ion Accelerator Facility(HIAF)which is currently under construction,together with a new electron ring.The proposed collider will provide highly polarized electrons(with a po-larization of 80%)and protons(with a polarization of 70%)with variable center of mass energies from 15 to 20 GeV and the luminosity of(2–3)×1033 cm^(−2)·s^(−1).Polarized deuterons and Helium-3,as well as unpolarized ion beams from Carbon to Uranium,will be also available at the EicC.The main foci of the EicC will be precision measurements of the structure of the nucleon in the sea quark region,including 3D tomography of nucleon;the partonic structure of nuclei and the parton interaction with the nuclear environment;the exotic states,especially those with heavy flavor quark contents.In addition,issues fundamental to understanding the origin of mass could be addressed by measurements of heavy quarkonia near-threshold production at the EicC.In order to achieve the above-mentioned physics goals,a hermetical detector system will be constructed with cutting-edge technologies.This document is the result of collective contributions and valuable inputs from experts across the globe.The EicC physics program complements the ongoing scientific programs at the Jefferson Laboratory and the future EIC project in the United States.The success of this project will also advance both nuclear and particle physics as well as accelerator and detector technology in China. | Daniele PAnderle Valerio Bertone Xu Cao Lei Chang Ningbo Chang Gu Chen Xurong Chen Zhuojun Chen Zhufang Cui Lingyun Dai Weitian Deng Minghui Ding Xu Feng Chang Gong Longcheng Gui Feng-Kun Guo Chengdong Han Jun He Tie-Jiun Hou Hongxia Huang Yin Huang KrešImir KumeričKi LPKaptari Demin Li Hengne Li Minxiang Li Xueqian Li Yutie Liang Zuotang Liang Chen Liu Chuan Liu Guoming Liu Jie Liu Liuming Liu Xiang Liu Tianbo Liu Xiaofeng Luo Zhun Lyu Boqiang Ma Fu Ma Jianping Ma Yugang Ma Lijun Mao Cédric Mezrag HervéMoutarde Jialun Ping Sixue Qin Hang Ren Craig DRoberts Juan Rojo Guodong Shen Chao Shi Qintao Song Hao Sun PawełSznajder Enke Wang Fan Wang Qian Wang Rong Wang Ruiru Wang Taofeng Wang Wei Wang Xiaoyu Wang Xiaoyun Wang Jiajun Wu Xinggang Wu Lei Xia Bowen Xiao Guoqing Xiao Ju-Jun Xie Yaping Xie Hongxi Xing Hushan Xu Nu Xu Shusheng Xu Mengshi Yan Wenbiao Yan Wencheng Yan Xinhu Yan Jiancheng Yang Yi-Bo Yang Zhi Yang Deliang Yao Zhihong Ye Peilin Yin C-PYuan Wenlong Zhan Jianhui Zhang Jinlong Zhang Pengming Zhang Yifei Zhang Chao-Hsi Chang Zhenyu Zhang Hongwei Zhao Kuang-Ta Chao Qiang Zhao Yuxiang Zhao Zhengguo Zhao Liang Zheng Jian Zhou Xiang Zhou Xiaorong Zhou Bingsong Zou Liping Zou | 2021 | Frontiers of physics2021，16，6： | 1 |
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