著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Tohkairin,Fractionation and availabilization of phosphorus accumulated in paddy soils with application of phosphatic fertilizer in Yamagata prefecture,Spec. Bull. Yamagata Prefectural Agric. Exp. Stat.,,,1992,21,,1,https://cir.nii.ac.jp/crid/1371414294032375298,