PROBLEM TO BE SOLVED: To provide a nutrient dissolving/dispersing body in water environment effectively and continuously exerting effect inherent in fertilizer material.SOLUTION: The nutrient dissolving/dispersing body 10 is disposed in water to dissolve and disperse nutrients into the water. The nutrient dissolving/dispersing body 10 is such that bivalent iron-containing fertilizer material is housed in a closed container 11. The closed container 11 is provided with at least two holes 14 at its side wall. The nutrient dissolving/dispersing body 10 has a structure with its top surface closed and thereby sludge and the like do not get in the container 11, so that the fertilizer material in its inside is hardly covered with deposit. At least two holes 14 are formed on the side wall and thereby water smoothly flows into and out of the container 11 and the nutrients dissolved out from the fertilizer material are slowly released out of the container 11.COPYRIGHT: (C)2011,JPO&INPIT【課題】施肥材料の本来の効果を有効且つ持続的に発揮し得る養分溶散体を提供することを目的とする。【解決手段】水中に設置して養分を水中へ溶散する養分溶散体10であり、該養分溶散体10は、2価の鉄を含む施肥材料が閉鎖容器11に収容されてなる。閉鎖容器11は、その側壁に2以上の孔14が設けられている。養分溶散体10は、上面が閉鎖された構成であるのでヘドロ等が容器11内に入らず、内部の施肥材料が堆積物で覆われることが殆どない。孔14が側壁に2以上設けてあるので、容器11内外を水が円滑に出入りし、施肥材料からの溶出養分が容器11外に徐放される。【選択図】図1
