Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KATOH Masahiko and HAYASHI Yasuhito and MORIKUNI Hiromasa,Effect of combined applications of ^<15>N-labeled ammonium sulfate and cattle manure composts on nitrogen supply potential of soil to spinach,Japanese Journal of Soil Science and Plant Nutrition,0029-0610,Japanese Society of Soil Science and Plant Nutrition,2008,79,3,283-289,https://cir.nii.ac.jp/crid/1390282681533352064,https://doi.org/10.20710/dojo.79.3_283