New method of nutrient management in hydroponics and the application for production of low potassium tomato fruit

Abstract

New method of nutrient management in hydroponics and the application for production of low potassium tomato fruit

Chronic kidney failure has become a global problem in recent years, and the patients are often restricted
K intake because of the problem with excretion of excess K. Low K tomato fruit will improve the dietary
habits of the patients and their QOL. In this study, a method of producing tomato fruit with low K content
was investigated. Medium-sized and cherry tomato (Solanum lycopersicum L.) cultivars were used, and
the supply of K was restricted using hydroponic technology. In medium-sized tomatoes, fruit K content
decreased 40% to 60% depending on cultivar by K withdrawal from the nutrient solution.