Phosphate fertilizer (phosphoric acid fertilizer)

Japanese: リン酸肥料(燐酸肥料) - りんさんひりょう(英語表記)phosphatic fertilizer
Phosphate fertilizer (phosphoric acid fertilizer)
A fertilizer applied to supply phosphate to the soil. Phosphorus or phosphoric acid is a necessary nutrient for plants as a component of nucleic acids, phospholipids, sugar phosphates, ATP, etc., but since the phosphoric acid content in soil is not necessarily high, it must be applied as a fertilizer. Organic fertilizers that have been used for a long time, such as rice bran, bone meal, and guano, contain relatively large amounts of phosphoric acid and are also phosphate fertilizers. Generally, the phosphoric acid in bone meal has low solubility and low fertilizing effect, but J.F. von Liebig discovered that when sulfuric acid is added to it, it becomes a highly phosphate fertilizer, i.e., superphosphate.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
土壌にリン酸を供給することを目的として施用される肥料。核酸,リン脂質,糖リン酸,ATPなどの構成分としてリンあるいはリン酸は植物にとっても必要な養分であるが,土壌中のリン酸含有量は必ずしも多くないので,肥料として施用する必要がある。古くから用いられている有機質肥料の米ぬか,骨粉,グアノはリン酸を比較的多く含み,リン酸肥料でもある。一般に骨粉中のリン酸は溶解性が小さく,肥効が低かったが,J.F.vonリービヒはこれに硫酸を作用させると肥効の高いリン酸肥料すなわち過リン酸石灰となることを見つけた。

出典 株式会社平凡社世界大百科事典 第2版について 情報

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