Hiroo Otsuka

Pedological characteristics, general fertility and classification of some benchmark soils of Morogoro District, Tanzania

Balthazar M. Msanya, Abel K. Kaaya, Shigeru Araki et al. · African Journal of Science and Technology · 2004 · 51 citations · Full text

Agriculture, Land-use Planning, Soil Sciences +17

Comparison of decolorization by microorganisms of humic acids with different 13C NMR properties

Yukiko Yanagi, Hajime Tamaki, Hiroo Otsuka et al. · Soil Biology and Biochemistry · 2002 · 40 citations

Engineering, Chemistry, Microbiology +12

Relation of chemical properties of soil humic acids to decolorization by white rot fungus–<i>Coriolus consors</i>

Yukiko Yanagi, Seiji Hamaguchi, Hajime Tamaki et al. · Soil Science & Plant Nutrition · 2003 · 28 citations

Agriculture, Microbiology, Soil Sciences +16

Properties of soil humic substances in fractions obtained by sequential extraction with pyrophosphate solutions at different pHs

Nobuhide Fujitake, Atsuko Kusumoto, Mayuko Tsukamoto et al. · Soil Science & Plant Nutrition · 1998 · 24 citations

Agriculture, Earth Sciences, Soil Sciences +14

Properties of soil humic substances in fractions obtained by sequential extraction with pyrophosphate solutions at different pHs

Nobuhide Fujitake, Atsuko Kusumoto, Yukiko Yanagi et al. · Soil Science & Plant Nutrition · 2003 · 21 citations · Full text

Agriculture, Earth Sciences, Soil Sciences +14