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NAKAMURA Ryuichi, HIRAI Goh. The Nutrient Characteristics of External Surface Patially Browned Tomato Fruit. 2020. 87. 774. 63-66
KOUDA Yasuyukii, TAKEUCHI Harunobu, NAKATSU Satoshi, NAKAMURA Ryuuichi. Status and Changes of the Cultivated Soil Properties in Hokkaido District Japan(1959-2011). 2019. 86. 772. 307-313
Itagaki Eisuke, Tsukamoto Yasutaka, Nakamura Ryuuichi. Properties of winter wheat cultivation by no tillage seedling with basal tillage in summer. 2019. 86. 1. 22-27