Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SAKIYAMA Ryozo and KAWATEI Kinzo,Distribution of seedlings of daikon (Raphanus sativus L.) seeded with an universal drill and estimation of reasonable seed rates for spaced crops,Journal of the Japanese Society for Horticultural Science,0013-7626,THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE,1971,40,2,144-149,https://cir.nii.ac.jp/crid/1390282681280273408,https://doi.org/10.2503/jjshs.40.144