GLASS COMPOSITION CONTAINING INORGANIC IRON FOR HYDROPONICS

• Main Authors: KONO MIKA, AKITOMO MASARU, MASUDA HIROHISA, MIYAZAKI TOSHIHIKO
• Format: Patent
• Language: English; Japanese
• Published: 06.07.2022
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; FERTILISERS; FERTILISERS PRODUCING CARBON DIOXIDE; FISHING; FORESTRY; GLASS; HORTICULTURE; HUMAN NECESSITIES; HUNTING; INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; JOINING GLASS TO GLASS OR OTHER MATERIALS; MANUFACTURE THEREOF; METALLURGY; MINERAL OR SLAG WOOL; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; TRAPPING; WATERING

To provide a glass composition containing inorganic iron for fertilizer for overall water culture and hydroponics to which regular addition of EDTA iron is not necessary and iron content in liquid fertilizer does not increase excessively, because iron content dissolves slowly in water.SOLUTION: A glass composition containing inorganic iron contains (a) P2O5:36 mol%-44 mol%, (b) K2O:36 mol%-44 mol%, and (c) FeO:18 mol%-20 mol%. A molar ratio of P2O5/K2O is 0.8-1.2. The glass composition containing inorganic iron is used as fertilizer for overall water culture and hydroponics.SELECTED DRAWING: None 【課題】鉄分が水中においてゆっくり溶けることにより、定期的にＥＤＴＡ鉄を加える必要がなく、かつ液体肥料中の鉄分が多くなりすぎない水耕栽培用および養液栽培全般用の肥料として用いる無機鉄含有ガラス組成物を提供する。【解決手段】本発明に係る無機鉄含有ガラス組成物は、（ａ）Ｐ２Ｏ５３６ｍｏｌ％～４４ｍｏｌ％、（ｂ）Ｋ２Ｏ ３６ｍｏｌ％～４４ｍｏｌ％、および（ｃ）ＦｅＯ １８ｍｏｌ％～２０ｍｏｌ％を含む無機鉄含有ガラス組成物であり、Ｐ２Ｏ５／Ｋ２Ｏのモル比が０．８～１．２であり、前記無機鉄含有ガラス組成物は水耕栽培および養液栽培全般における肥料として用いること、からなる。【選択図】なし