Obihiro University of Agriculture and Veterinary Medicine

• 黒ボク土の特性の解明に関する研究
• 作物の肥培管理技術の向上に関する研究

魅力的なフィールドに囲まれた帯広畜産大学は、土壌学と農学を結び付けた研究を行うのにうってつけの大学です。現場での課題は様々な要因が絡み合い、一見すると答えがないように思えるものがほとんどです。これらを土壌学や作物学の知識を用いて、一つずつひも解いていくのは貴重な経験になると思います。また、環境土壌学研究室では、化学実験も野外調査もどちらも行う場合がほとんどです。ラボでの実験だけでなく、フィールドに出て土を感じたい！という方も大歓迎です。私自身、帯広の土壌について分からないことがたくさんあるので、みなさんと一緒に成長していければと思います。

Pedology focuses on the soil genesis and soil developing process. It is essential to think about the soil properties, which result from soil genesis, for enhancing crop production. The major way of a soil survey is soil profile observation. We usually prepare a 1 m depth soil pit and observe its profile (Fig. 1). We took soil samples for each horizon, which was determined by the soil profile description. Those samples are used for lab analysis to explore more properties of soils.
The properties of soils are very complex since the soil contains many kinds of organic and inorganic components. To untangle this complex system step by step, I focused on the soil aggregates in my research (Fig. 2). Specifically, I focused on the spatial distribution of the organic and organic components of soils on milli- to micron-meter scales. This approach is effective in revealing the mechanisms of organic matter fixation.
Obihiro University of Agriculture and Veterinary Medicine is surrounded by plenty of agricultural lands, which means that we have many things to be done in macro-scale research. In the future, I will try to conduct research to connect the knowledge from micron-scale research and agriculture in the field.

• The effect of a land management change on the soil properties
• Development of effective fertilizing management based on soil profile observation