植物钾效率差异的营养生理及代谢机制研究进展  

Review of nutrient physiology and metabolism in potassium efficiency of plants

作　　者：雷晶[1] 郝艳淑[1] 王晓丽[1] 王典[1] 姜存仓[1] 

机构地区：[1]华中农业大学资源与环境学院农业部长江中下游耕地保育重点实验室,湖北武汉430070

出　　处：《中国土壤与肥料》2014年第1期1-5,共5页Soil and Fertilizer Sciences in China

基　　金：国家自然科学基金(40801112);公益性行业(农业)科研专项(201203013);IPNI(Hubei-37)

摘　　要：钾是植物生长发育所必需的营养元素之一,而土壤钾库中生物有效性的钾所占比例相对较低,作物难以有效利用,且钾肥资源较为短缺,所以植物钾效率的研究日益引起国内外众多学者的重视。本文主要从钾高效吸收和利用等方面,着重阐述钾高效的营养生理和代谢机制的最新研究进展,提出了该领域存在的问题并就今后应开展的研究工作做了展望。Potassium （K） is one of the important nutritional elements, and it is necessary for plant growth and develop- ment. While the proportion of bioavailability K in the soil K pool is relatively low, and it is difficult for crop to effectively use, and the K fertilizer resources are shortage. Therefore, the research about the efficiency of plant K increasingly attrac- ted the attention of many scholars all over the world. This article reviews the K efficient absorption and utilization, focuses on the latest research progress of the nutrient physiology and metabolic mechanism of K efficiency. Finally, we outlined the problems existing in this field and propose the future research directions.

关 键 词：钾高效 根系形态 吸收 利用 生理机制 

分 类 号：S143.3[农业科学—肥料学]