2025-12-24 理化学研究所,福島大学,東京大学,北海道大学,大阪府立環境農林水産総合研究所
図1 研究の概要
国内の多数の生産者ほ場からサンプルを収集した結果、農薬や肥料の使用方法に基づく多様な栽培方法が観察された（左）。それらのサンプルから土壌と果実に関するマルチオミクスデータを抽出した（右）。
＜関連情報＞
- https://www.riken.jp/press/2025/20251224_1/index.html
- https://www.jstage.jst.go.jp/article/plantbiotechnology/42/4/42_25.0605a/_article
日本全国のミカン園における持続可能な栽培方法に関するコホート研究 A cohort study of sustainable cultivation methods in mandarin orange orchards across Japan
Fuki Fujiwara, Yukari Okano, Daisuke Takata, Hayato Maruyama, Ryota Arakawa, Natsuko I Kobayashi, Kie Kumaishi, Megumi Narukawa, Yui Nose, Tsuyoshi Isawa, Takuro Shinano, Kae Miyazawa, Naoto Nihei, Yasunori Ichihashi
Plant Biotechnology Published: December 25, 2025
DOI:https://doi.org/10.5511/plantbiotechnology.25.0605a
Abstract
Variability in environmental conditions and farming practices often leads to discrepancies between experimental results and outcomes in farmers’ fields. This gap poses a challenge for understanding the effects of agricultural inputs and methods under real-world conditions, particularly in fruit cultivation systems, where large-scale experimental data are limited. In this study, we applied a cohort study approach leveraging data from farmers’ fields to investigate the effects of pesticide and fertilizer application methods on fruit quality and soil properties in mandarin orange orchards. Biases arising from differences in covariates among cultivation methods were controlled using the inverse probability weighting (IPW) based on propensity scores. Consequently, compared to local-scale analysis between adjacent fields, the nationwide cohort analysis detected a greater number of significant effects of cultivation methods by utilizing its larger sample size. Through this analysis, we found important insights into the effects of pesticide and fertilizer application methods on plant pathogens, nutritional quality, and soil properties in sustainable cultivation systems of mandarin orange. This study demonstrates that cohort analyses using real-world data have great potential to advance agricultural biotechnology by providing effective feedback from farmers’ fields and bridging the gap between scientific research and real-world agriculture.
