@article{oai:u-ryukyu.repo.nii.ac.jp:02015308, author = {Oshiro, Kishin and 大城, 喜信}, issue = {1・2}, journal = {沖縄農業}, month = {Mar}, note = {論文}, pages = {41--48}, title = {Studies on the Improvement of Jaagaru (Calcareous Heavy Clay Soil) in Okinawa Island 3 Effects of Niibi Addition on the Physical Properties of Jaagaru}, volume = {11}, year = {1973} }