森林土壌に於けるアゾトバクターの分布(予報)
On the Determination of Azotobacter in Forest Soils

M. OMASA
1930 Journal of the Science of Soil and Manure  
doi:10.20710/dojou.4.2_32 fatcat:xol4xftrsrhttef7j2wty4xiou