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- Distribution, characteristics and utilization of problem soils(Tropical agriculture research series : proceedings of a symposium on tropical agriculture researches )
- Improvement of the Moisture Regime of Upland Soils in Thailand by Soil Management(Tropical agriculture research series : proceedings of a symposium on tropical agriculture researches )
- Soil and Water Management and Soil Physical Properties with Special Reference to Erosion Hazard by Water(Tropical agriculture research series : proceedings of a symposium on tropical agriculture researches )
- Soil Management in the Subtropical Region(Tropical agriculture research series : proceedings of a symposium on tropical agriculture researches )
- Problems and Improvement of Volcanic Ash Soils in Japan with Reference to the Weathering Sequence(Tropical agriculture research series : proceedings of a symposium on tropical agriculture researches )
- Improvement and Fertilization of the Savannas in Brazil(Tropical agriculture research series : proceedings of a symposium on tropical agriculture researches )
- Effects of Field Drainage on Some Chemical Properties of Acid Sulfate Soils under Coconut Small Holdings in West Johore Agriculture Development Scheme in Malaysia(Tropical agriculture research series : proceedings of a symposium on tropical agriculture researches )
- Nitrogen Fixation in Acid Sulfate Paddy Soils(Tropical agriculture research series : proceedings of a symposium on tropical agriculture researches )
- Present Soil Conditions of Cultivated Land in Japan(Tropical agriculture research series : proceedings of a symposium on tropical agriculture researches )
- Characteristics and Fertilization of Andepts in the Philippines(Tropical agriculture research series : proceedings of a symposium on tropical agriculture researches )