TANAKA Hiroshi   Faculty of Sports and Health Science Department of Sports Science   Professor

■ Title   Verification study of the effect of increasing concentration of oxygen produced by watering and spraying foliage plants with aqueous potassium silicate solution

■ Outline   The purpose of this study was to clarify to what extent the watering and spraying foliage plants with an aqueous solution of potassium silicate (K2SiO3) contributed to the oxygen concentration in the environment. Plant growth is known to be facilitated by potassium silicate fertilizer through an increase in the rate of photosynthesis, and with such an increase, high quality crops can be cultivated. However, it was not clear whether the watering and spraying of K2SiO3 over foliage plants would increase both the rate of photosynthesis and the oxygen concentration. Therefore, in this study, two chambers (0.28 m3) containing foliage plants were placed in an environmentally controlled room (10.7 m3); one set of plants was watered and sprayed with K2SiO3, while the second set was treated with tap water only. The oxygen concentrations in the two chambers were subsequently compared.   Tomoo Ryushi,Mihyang Park,Hiroshi Tanaka,Shinya Tadakuma,Bill Wolverton,Kozaburo Takenaka   Collaboration      2013/03

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