- United Nations. Economic Commission for Europe (5)
- Symposium on Research into Agro-technical Methods Aiming at Increasing the Productivity of Crops--Co-efficients for the Most Efficient Use of Fertilizer Nutrients and Means for Reducing the Losses of Nutrients to the Environment under the Conditions of I (1)
- United Nations. Economic Commission for Europe. Agriculture Section (1)
- 井上, 敝雄 (1)
- 吉田, 稔(1923-) (1)
- 山田, 正幸 (1)
- 戸塚, 績(1933-) (1)
- 林野庁 (1)
- 環境庁 (1)
- 環境庁大気保全局 (1)
- 環境庁水質保全局 (1)
- 環境庁水質保全局土壌農薬課 (1)
- 環境庁酸性雨土壌植生影響研究会 (1)
- 田村, 浩志(1937-) (1)
- 藤井, 國博 (1)
- 袴田, 共之(1943-) (1)
- 金野, 隆光(1934-) (1)
- 高橋, 啓二 (1)