1991 GUPTA, Raj Krishan (b. 1946) PhD,FNA,FNAAS, President, SPARK; Society for Promotion of Agricultural Research Knowledge, CG Block, NASC Complex, DPS Marg, Pusa New Delhi; Res. B4/205 FF, Safdarjung Enclave, New Delhi – 110029; Tel: 09711009365(M); Fax: 26181175; Email: ; Sp. Soil Science; Land Reclamation, Use of Low Quality Waters,Conservation Agriculture and Farmer Participatory AdaptiveResearch.