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[会议论文] 作者：Li cai-feng,
来源：中国科学技术协会学会学术部,福建省科协 年份：2004
A more sophisticatedunderstanding of electronic commerce is important to help firm apply to transaction and business to make profit．context of the article include definitionof electronic commerce，Adv...
The Effect of Different Nitrogen Form on Key Enzyme Activity of Sugarbeet (Vulgaris L.) Carbon and N
[期刊论文] 作者：LI Cai-feng,MA Feng-ming,
来源：东北农业大学学报(英文版) 年份：2002
This article analyses the effect of the proportion of the different nitrogen forms on key enzyme activity of carbon and nitrogen metabolism under the condition...
[期刊论文] 作者：LI Cai-feng,LI Ming,WANG Ke-rong,LU Xiao-bo,
来源：东北农业大学学报(英文版) 年份：2001
The effecf of potassium fertilizer on Nitrate Reductase Activity (NRA), Hydrogen Peroxide Activity rn(HPA) ,Peroxidase Activity (PODA) in the fiber flax was stu...
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