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我国乃至世界范围内水分缺乏是限制多种作物高产优质的首要限制因子,通过各种农业技术措施以提高作物对有限水资源的利用效率,增强作物的抗旱能力,一直是人们热衷研究的课题。施用钾肥与作物的水分利用及其抗旱性具有十分密切的关系,它主要是通过以下机制提高作物的抗旱性。
Lack of water in our country and even in the world is the primary limiting factor to limit the high yield and quality of many crops. It has always been a subject that people are keen to study through various agricultural techniques and measures to improve the utilization efficiency of crops to limited water resources and enhance the drought resistance of crops. Potassium fertilizer is closely related to crop water use and drought resistance. It mainly increases the drought resistance of crops through the following mechanisms.