John Maczak
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* Garamszentgyörgy, June 22, 1924 – † Budapest, May 19, 1972 / horticultural engineer ; ; He graduated from the Léva Gymnasium and obtained his horticultural engineering diploma in 1952 at the University of Agricultural Sciences in Budapest. From 1952 until his death, he worked first at the Viticulture Research Institute and then at the Horticulture Research Institute. His research field is the organization, economics and economic issues of vegetable production. He was one of the initiators of the installation of large-scale greenhouses. ; ; His main works: ; The History and Work of the Horticulture Research Institute, 1959, ; Direct Input and Yields of Pepper Production in State Farms, 1960.