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Research Progress on Effects of Potassium Application on Growth,Yield and Quality of Potato

YI Jiu-hong1,LIU Ai-yu2,WANG Yun-gao3,DENG Li-chao1,LI Li1,ZHOU Hong1,HUANG Yan-lan1(1 Hunan Crop Research Institute,Changsha,Hunan 410125,China;2 Institute of Cotton Science,Hunan Agricultural University,Changsha,Hunan 410128,China;3 Hunan Potato Devirusing and Mass Propagating Center,Changsha,Hunan 410219,China)  
Potassium is an essential element for crop growth,which plays an important role in maintaining normal material metabolism,increasing enzyme activity,promoting photosynthesis and transportation of photosynthate,promoting protein synthesis.In this article,effects of potassium on growth and development,yield and quality of potato were summarized,and the research directions were prospected.
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