A method for predicting the required seedling density in seeding work 論文 Hiroshi Yoshida・Junichi Imanishi・Shozo Shibata・Yukihiro MORIMOTO ·2007-01-01 ·『Journal of the Japanese Society of Revegetation Technology』 33(2) pp. 369-379 doi:10.7211/jjsrt.33.369