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[期刊论文] 作者：Naveed AHMED,ADNAN,Umar KHAN,S,
来源：中南大学学报:英文版 年份：2019
本文研究了水和乙二醇基纳米流体的胶体性质。考虑了洛伦兹力和热辐射的影响,通过相似变化,完成了控制方程的无量纲转化。然后,应用龙格-库塔法,对流动模型的非线性特性进行...
Impact of Tillage and Herbicides on Weed Density, Yield and Quality of Cotton in Wheat Based Croppin
[期刊论文] 作者：Khalid Usman,Niamatullah Khan,Muhammad Umar Khan,Aziz ur Rehman,Said Ghulam,,
来源：Journal of Integrative Agriculture 年份：2013
Conservation tillage may improve yield of cotton in addition to improvement in soil quality if practiced for longer period. However, the practice may not be pro...
[期刊论文] 作者：林志敏,MUHAMMAD Umar Khan,方长旬,林文雄,
来源：中国生态农业学报（中英文） 年份：2022
本文从作物种内互作和种间互作以及直接化感作用和间接化感作用两个维度重点阐述了近年来中国在作物化感作用类型的研究及其新进展,以期与同行分享该领域的研究成果和经验.早在1984年就有作物化感作用的相关报道,近年来取得了很大的进展.作物化感作用的概念也延......
Integrated Weed Management Through Tillage and Herbicides for Wheat Production in Rice-Wheat Croppin
[期刊论文] 作者：Khalid Usman,Inayat Ullah,Said Mir Khan,Muhammad Umar Khan,Said Ghulam,Muhammad Anwar Khan,,
来源：Journal of Integrative Agriculture 年份：2012
Conservational tillage (CT) in combination with broad spectrum herbicide may be more efficient and economical in controlling weeds, reducing cost of cultivation...
Optimal management of nitrogen fertilizer in the main rice crop and its carrying-over effect on rato
[期刊论文] 作者：Jia-yi,CHEN Hong-fei,ZHANG Zhi-xing,FANG Chang-xun,SHAO Cai-hong,LIN Wei-wei,WENG Pei-ying,Muhammad Umar KHAN,
来源：农业科学学报（英文版） 年份：2022
This study attempted to clarify the carrying-over effect of different nitrogen treatments applied to the main crop on the crop population growth and yield formation of ratoon rice under mechanized cultivation in Southeast China. Based on th......
[期刊论文] 作者：Le Qiu,Ram Chuttani,Douglas K Pleskow,Vladimir Turzhitsky,Umar Khan,Yuri N Zakharov,Lei Zhang,Tyler M,
来源：光：科学与应用（英文版） 年份：2018
Esophageal adenocarcinoma is the most rapidly growing cancer in America.Although the prognosis after diagnosis is unfavorable,the chance of a successful outcome...
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