CHANGES IN PRODUCTIVITY OF EXPOSED ALLUVIAL SOIL BY REMOVAL OF SURFACE VOLCANIC ASH SOIL

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概要

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• Native volcanic ash topsoil was removed in order to expose buried alluvial soil, on which the present experiment was conducted under cultivation for three years. The crop yield on the exposed soil was far lower in he first year as compared to that of common furrow slice soils, followed by a gradual increase during the experimental period. Even though desurfaced, the soil showed a higher productivity than the original topsoil in the third year. Addition of fused phosphate and barnyard manure increased the ratio of aerobic bacteria to fungi and some microbial activities, and as a result, the increase in crop yield on the soil was accelerated. Desurfacing should thus be a practical amerioration procedure, particularly in the case of the soil.

• 社団法人日本土壌肥料学会の論文

著者

• Yokoi Yoshio

  Hokkaido Central Agricultural Experiment Station

• Kikuchi Koji

  Hokkaido Central Agricultural Experiment Station

• SEKIYA Nagaaki

  Hokkaido Central Agricultural Experiment Station

関連論文

• Mechanisms and Processes of Crust Formation on Artificial Aggregates : III. Relations between Natural Rainfall Characteristics and Degree of Crusting
• CHANGES IN PRODUCTIVITY OF EXPOSED ALLUVIAL SOIL BY REMOVAL OF SURFACE VOLCANIC ASH SOIL

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