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<p>In this study, we focused on the task of weeding that had been an issue in organic rice cultivation, and investigated the economic effects of introducing a high-efficiency weeder. We analyzed working hours and production costs, and estimated the possibility of expanding the organic rice acreage. The results were as follows: (1) The weeding time in organic rice cultivation decreased significantly; (2) although the production cost of organic rice cultivation was higher than that of conventional rice cultivation, it was more advantageous, considering the price of organic rice; and (3) estimation by linear programming revealed that using a high-efficiency weeder could increase the area under organic rice cultivation.</p>

DOI： 10.7310/arfe.56.54

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<p>本稿では，近年注目される「生物多様性保全型技術」を対象とし，効果的かつ効率的な普及方法を解明することを目的とした．新潟県佐渡市において普及活動が進められている「朱鷺と暮らす郷認証米」を対象事例とし，技術導入に関する試行段階と確認段階の意思決定，さらに中断，非導入の理由に注目して分析した．</p><p>まず導入者と非導入者の特徴を比較した結果，居住集落や水稲経営面積，経営理念，シンボルとの関係性などに違いが見られることが明らかとなった．次に，導入動機の分析から，先行導入者は主にシンボルである生物への貢献や商品の差別化などの側面に価値を見出して技術を導入していた．また，中断者による中断理由を分析した結果，中断者をなるべく出さないようにするためには，トキ米の生産者を対象とした研修会を開催して栽培要件や栽培方法に関する情報を提供することや，高い精算金の実現などが有効であると考えられる．最後に，非導入理由の分析から，新規導入者を確保するにあたっては，トキ米の説明会を開催し，トキ米やエコファーマーの申請方法，さらには栽培要件に含まれる生き物調査の実施方法に関する情報を提供することが有効であると考えられる．</p>

DOI： 10.3173/air.28.127

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<p>Value-added rice products associated with ecological protection have attracted significant research attention in recent times. However, farming methods related to the production of these products are not diffusing rapidly. This study analyzes the factors affecting the diffusion of conservation-oriented farming methods, or, in other words, the farming formula to nurture oriental stork and Japanese crested ibis. We focused on three parameters that impact the shape of diffusion curves—time required to reach an acceptance of 5&#37;; rate of acceptance; and ceiling value. The case study showed that the diffusion curve of each farming method had a different shape. Rapid diffusion of the formula at an early stage can be ensured by conducting seminars on new farming technologies. In addition, the ceiling value can be increased by purchasing rice at higher prices, promoting awareness of the factors that prevent farmers from introducing these methods, and regularly conducting seminars for farmers.</p>

DOI： 10.7310/arfe.55.73

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Creating Farming Practices for Social Innovation: The Case of Kohnotori-hagukumu Nouhou (Farming formula nurturing oriental storks)

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DOI： 10.7310/arfe.51.185

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Event date： 2021.11

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Event date： 2021.10

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Event date： 2021.8

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Innovation and Technology for Sustainability -A Case study of Kohnotori-hagukumu Nouhou in Toyooka, Japan

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The Financialization of Agriculture in the Chinesedomestic market - Time-varying Correlations between Chinese AgriculturalCommodity and Financial Market Dynamics

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Factors associated with marketing innovation implementation in Japanese agricultural corporations: withcomparison to product and process innovation

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Factors affecting the labor productivity of agricultural corporations in Japan: Is digital farming adoption effective?

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Factors affecting the adoption intention of digital farming by agricultural corporations in Japan: with comparisonto factors of current adoption

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Factors affecting adoption of ICTs in rice farming: Focusing on the strength of the agricultural corporations in Japan

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Factors Affecting Future Intention to Utilize Robotic and Automation Technology in Japanese Rice Corporation: An Analysis of Nationwide Questionnaire Survey

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Innovation and Technology for Sustainability: The Current Status and Prospects of Organic Farming in Japan

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This study compares the financial characteristics of the agriculture industry, including each farming type, to other industries. Furthermore, we examine the sustainability and development of agricultural corporations and their innovation possibilities. The 2020 and 2021 Business analysis & statistics by TKC (BAST) were used for the financial analysis. The results showed that agriculture is comparable to other industries in some indexes, such as profitability. Moreover, we revealed that rice and dairy farming are highly safe and profitable. We found that the value added by direct sales and government subsidies might be important factors in rice farming. Subsequently, the impact of raw milk distribution structure and technological innovation are considered in dairy farming.
本研究は，農業経営の持続性および経営発展，イノベーションの可能性を検討するため，法人経営を対象として，他産業と比較した農業および各営農類型の財務的特徴を明らかにすることを目的とした「TKC経営指標（要約版）」（TKC全国会）を用いて，農業および各営農類型と他産業中小企業との財務的特徴について分析した結果，農業は着Hする指標によっては他産業中小企業と比較して比肩しうる存在となっていることが明らかとなったさらに，米作農業と酪農業は安全性と収益性が高い水準にあることを明らかにし，特に収益性が高い要因として，米作農業では直接販売による高付加価値化の実現および補助金などの政策的支援，酪農業では生乳の流通構造および技術革新による影響が考えられた.

DOI： 10.15017/4797838

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Determinants of ICT and Smart Farming Technology Adoption by Agricultural Corporations in Japan

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Determinants of Product Innovation Implementation in Japanese Agricultural Corporations

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In recent years in Japan, growth of the domestic forestry industry has been touted through a variety of policy measures, including promotion of the use of local forest material, such as wood biomass, especially as an energy source. However, the meager efficiency in the small-scale biomass power generation prompts multiple energy use, such as cogeneration (i.e. electric power and heat) and trigeneration (i.e. electric power, heat, and carbon dioxide). One of promising destinations of biproducts of woodbiomass trigeneration, heat and carbon dioxiyde, is the "next generation" horticulture, or production in greenhouses equipped with mass-scale, advanced environmental control capability. This study evaluates business potential of woody biomass power generation of which residual heat and carbon dioxide are utilized in the next-generation horticulture production. The study resulted in the following findings: 1) it is hardly possible to establish a financially viable woody biomass powerplant by itself; 2) calculated economic gains from productions of leafy lettuce and strawberry in next-generation greenhouses respectively proves their possible business feasibility; and 3) a 1.5-hectare next-generation greenhouse producing leafy lettuce combined with a small-scale woody biomass powerhouse demonstrated improvements in the balance of payment structure.

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環境保全米普及の要点① 需要増背景に価格も向上