1. Rate of water intake in the field;Bertrand,1965
2. On soil structure of plowed layer of paddy field;Dei;JARQ,1973
3. A soil core water permeameter for field use;Flannery;Soil Sci.,1964
4. Genesis and characteristics of rice soils developed on polder lands of the Shiroishi area;Kanno;Soil Sci. Plant Nutr. Tokyo,1964
5. Influence of paddy and corn in different rotations on wheat yield, nutrient removal and soil properties;Meelu;Pl. Soil,1979