01973cam a2200361 a 4500 1406199 BD-DhUL 20150113180454.0 830615s1983 ne a b 100 0 eng 83013094 9024728665 DLC DLC DLC BD-DhUL engfre S631.3 .S96 1983 631.81 19 UNE 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, Switzerland) Efficient use of fertilizers in agriculture / United Nations Economic Commission for Europe. Boston : Martinus Nijhoff/Dr. W. Junk for the United Nations c1983. vi, 352 p. : ill. ; 25 cm. US$ 275.94 Developments in plant and soil sciences ; v. 10 English and French. "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." "United Nations Economic Commission for Europe." Includes bibliographies. Fertilizers Congresses. Crops Nutrition Congresses. Crop yields Congresses. United Nations. Economic Commission for Europe. Agriculture Section. United Nations. Economic Commission for Europe. 7 cbc orignew 1 ocip 19 y-gencatlg ddc BK 30485 30485 0 0 ddc 0 631_810000000000000_UNE 0 NFIC 57707 DUSL DUSL GEN 2011-03-22 Purchased 631.81 UNE 457833 2015-01-13 5 2015-01-13 BK 0 0 ddc 0 631_810000000000000_UNE 0 NFIC 57708 DUSL DUSL GEN 2011-03-22 Purchased 631.81 UNE 457830 2015-01-13 2 2015-01-13 BK 0 0 ddc 0 631_810000000000000_UNE 0 NFIC 57710 DUSL DUSL GEN 2011-03-22 Purchased 631.81 UNE 457832 2015-01-13 4 2015-01-13 BK 0 0 ddc 0 631_810000000000000_UNE 0 NFIC 57712 DUSL DUSL GEN 2011-03-22 Purchased 631.81 UNE 457834 2015-01-13 6 2015-01-13 BK 0 0 ddc 0 631_810000000000000_UNE 0 NFIC 57715 DUSL DUSL GEN 2011-03-22 Purchased 631.81 UNE 457829 2015-01-13 1 2015-01-13 BK 0 0 ddc 0 631_810000000000000_UNE 0 NFIC 57716 DUSL DUSL GEN 2011-03-22 Purchased 631.81 UNE 457831 2015-01-13 3 2015-01-13 BK