Mubyukuri, fosifori yumuringa mubyukuri ni 0,03% -0.35% bya fosifore yibigize umuringa, 5-5% byamabati, nibindi bintu byerekana nka fer na zinc.Igicuruzwa kiri hejuru yumuringa wumuringa gikoreshwa cyane mugukoresha umurongo wa fosifori wumuringa, kandi wakinnye cyane ...
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