Efficient use of fertilizers in agriculture - 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 Intensive Agriculture (1983 : Geneva); United Nations. Economic Commission for Europe; United Nations. Economic Commission for Europe. Agriculture Section (The Hague : Martinus Nijhoff, 1983)
'Proceedings of the 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 Intensive Agriculture; organized by the Agriculture Section of the United Nations Economic Commission for Europe; held at Geneva, Switzerland, 17-21 January 1983.'
Keywords: Fertilizers -- Congresses; Plants -- Nutrition -- Congresses; Crop yields -- Congresses