著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) MURAYAMA N,The importance of nitrogen for rice production,Nitrogen and Rice,,International Rice Research Institute (IRRI),1979,,,5-23,https://cir.nii.ac.jp/crid/1572261550016538880,