 | SALUTATORY SPEECH (C. Daskaloff, Prof. Braynov, Eng. Kumanov) |
| ACHIEVEMENTS AND PROBLEMS OF GREENHOUSE VEGETABLE GROWING IN THE PEOPLE'S REPUBLIC OF BULGARIA (Prof. T. Mourtazov, S. Spassov, S. Gyurov, L. Tsonev) |
| BASIC TRENDS AND PROSPECTS IN THE DEVELOPMENT OF VEGETABLE GROWING IN PLANT GROWING STRUCTURES IN THE USSR (N. Golubyov) |
| RATIONAL METHODS OF MINERAL FERTILIZING OF VEGETABLE CROPS GROWN IN GREENHOUSES (P. Dr. T. Geissler) |
| CONTRIBUTION TO THE SOIL EXHAUSTION IN GLASSHOUSES (Doc. Ing. František Vlcek) |
| HARVEST AND AMOUNT OF YIELD OF GREENHOUSE GROWN TOMATOES AS AFFECTED BY VARIOUS RATES OF FERTILIZING WITH MINERAL AND ORGANIC FERTILIZERS (S. Spasov, V. Rankov) |
| THE EFFECTIVENESS OF DIFFERENT CULTURE MEDIA FOR THE PRODUCTION OF GREENHOUSE TOMATOES (E. Chroboczek, J. Karasinska-Dobrzanska) |
| PROBLEMS OF RAISING VEGETABLE CROPS IN PLANT GROWING STRUCTURES (Prof. J. Stambera) |
| THE INFLUENCE OF PEAT LAYER THICKNESS AND MINERAL FERTILIZERS ON GREENHOUSE TOMATO YIELDS (J.R. Starck) |
| IMPROVEMENT OF SOILS FOR VEGETABLE CULTIVATION WITH PLASTICS (Dr. B. Werminghausen) |
| THE CO2 REQUIREMENTS OF GREENHOUSE CROPS (Dr. H. Daunicht) |
| STUDY ON THE NUTRITION OF TOMATOES GROWN UNDER GREENHOUSE CONDITIONS (A. Gidiya, H. Popescu, T. Tudor, A. Sanchali, F. Dimitrescu, L. Kougler, V. Leketush, D. Popescu) |
| DEPTH OF SOIL CULTIVATION AS AN INFLUENCING FACTOR ON CROP YIELDS OF GREENHOUSE TOMATOES (Dr. J. Skierkowski) |
| CLIMATIC CONDITIONS IN TOMATO GROWING IN GREENHOUSES (A.J.M. Vijverberg) |
| INFLUENCE OF THE SPACING OF PLANTING ON THE PROFITABLENESS OF GREENHOUSE PEPPER PRODUCTION (M. Borka) |
| METHODS OF GROWING AND YIELDS OF GREENHOUSE CUCUMBERS FOR PICKLING (P. Dr. D. Fritz) |
| PHYSIOLOGICAL CONDITIONS OF DEFOLIATION OF EGGPLANTS GROWN IN HOTHOUSES (P. Dr. I. Meier, V. Shtefan) |
| THE ECOLOGIC DIFFERENTIATION OF CUCUMBERS WITH PARTICULAR REFERENCE TO THE BREEDING FOR PLANT GROWING STRUCTURES AND FOR ELABORATION OF A CULTIVAR AGRICULTURAL TECHNOLOGY (P. G.I. Tarakanov) |
| TESTING OF NEW VEGETABLE CULTIVARS (N. Müller) |
| RESULTS OF HYDROPONIC GROWING OF CUCUMBERS IN KOUBAN (I.A. Mitrakov, E.Y. Boyko) |
| THE INFLUENCE OF CERTAIN MICRO ELEMENTS ON THE YIELDS AND QUALITY OF TOMATOES GROWN IN GREENHOUSES (A. Botez, M. Dimitrescu) |
| EFFECT OF THE NUTRITIVE SOLUTION TEMPERATURES ON CUCUMBERS GROWN ON GRAVEL (V. Lichkine) |
| A NEW TENDENCY IN SEEDLING PRODUCTION AND VEGETABLE FORCING IN HUNGARY (Prof. A. Shomosh) |
| ADVANTAGES AND SPECIFICITY OF SEEDLING GROWING IN SPRING PLASTIC HOTHOUSES IN COMPARISON WITH GROWING IN HOTBEDS (P. Dr. V. Brisgalov, P.A.N. Modestova) |
| EFFECT OF SOIL TEMPERATURE ON THE GROWTH AND PRODUCTIVITY OF SEEDLINGS, GROWN IN ELECTRIC-HEATED HOTBEDS AND PLASTIC PLANT-GROWING STRUCTURES (L.N. Chermnih) |
| THE PRESENT CONDITION OF VENTILATION AND SHADING TECHNIQUES IN GREENHOUSES (Dr. F. Venter) |
| FUNDAMENTAL SCIENTIFIC RESEARCH WORK ON VEGETABLE GROWING IN PLANT-GROWING STRUCTURES IN THE USSR (N. Goncharuk) |
| PLANT PROTECTION PROBLEMS OF GREENHOUSE PRODUCTION WITH REFERENCE TO SOIL STERILIZATION (Dr. A. Molnar) |
| SOME PECULIARITIES IN THE DEVELOPMENT OF DISEASES OF TOMATOES RAISED IN GREENHOUSES (E. Elenkov) |
| CHEMICAL AND BIOLOGICAL CONTROL OF THE COMMON SPOTTED SPIDER MITE OF GREENHOUSE CROPS (Dr. L. Bravenboer) |
| NEW TRENDS IN THE STUDIES CONCERNING HOTBEDS AND GREENHOUSES USED IN HORTICULTURE (Dr. A. Nisen) |
| LIGHT AND YIELD CONDITIONS IN GREENHOUSES MADE OF GLASS FIBER-REINFORCED POLYESTER DEPENDING ON AGEING (Dr. G. Vogel) |
| USE OF POLYESTERS IN THE CONSTRUCTION OF GREENHOUSE BUILDINGS (Eng. L. Maier) |
| POSSIBILITIES OF APPLYING PLASTIC FILMS IN GREENHOUSES AND THE INCREASING OF EARLINESS OF VEGETABLES (Dr. B. Werminghausen) |
| TEMPERATURE CONDITIONS UNDER PLASTIC PROTECTION (T. Sugiyama, K. Takahaski) |
| AGRO-PHYSICAL STUDIES IN PLANT GROWING STRUCTURES (P. S.V. Nerpin) |
| EFFECTIVE USE OF THE ELECTRIC ENERGY IN PLANT GROWING STRUCTURES (L.G. Prishtep) |
| GROWING VEGETABLE CROPS IN ELECTRIC-HEATED HOTBEDS (L.N. Chermnich, M.V. Simonova) |
| GROWTH AND REPRODUCTIVE MANIFESTATIONS OF TOMATOES GROWN IN UNHEATED POLYETHYLENE GREENHOUSES (G. Tzekleev) |
| DEPENDENCE OF TRANSPIRATION INTENSITY AND GROWTH PROCESSES ON THE MICROCLIMATIC CONDITIONS UNDER POLYETHYLENE COVERS (Eng. Vladko Hmela) |
| ON THE BIOCLIMATE IN THE HOTBED (Prof. D. Draganov, Prof. T. Mourtazov, Docent P. Kartalov) |
| RESEARCH WORK ON BREEDING AND SEED PRODUCTION OF VEGETABLE CROPS CULTIVATED IN PLANT GROWING STRUCTURES (G.V. Boss) |
| RESEARCH TO IMPROVE THE YIELDS OF STALKED TOMATO PLANTS GROWN IN THE OPEN (F. Fabich) |
| INFLUENCE OF THE VARIETY ON GREENHOUSE PEPPER YIELD (Dr. Lambert Angeli) |
| CONTRIBUTION TO BREEDING OF VEGETABLE CULTIVARS IN FORCING HOUSES (Docent J. Luzny) |
| RESULTS OF THE STUDY OF DIFFERENT TOMATO VARIETIES GROWN IN GREENHOUSES (S. Gyourov) |
| SOME BIOLOGICAL PECULIARITIES IN GREENHOUSE GROWN TOMATOES AND CUCUMBERS AND THE REGULATION OF THEIR YIELDS (Dr. Avakyan-Erevan) |
| THE PROBLEM OF ESTABLISHING PROPER AGRICULTURAL TECHNICS IN THE INTENSIVE GROWING OF MUSHROOM CROPS (N. Mateescu, V. Mitroy) |
| PEAT AS A STANDARDIZED MEDIUM FOR GREENHOUSE CROPS (E. Kaukovirta) |
| PROBLEMS ON THE PRODUCTION AND ORGANIZATION OF VEGETABLE GROWING WITH CONTINUOUS USE OF PLANT GROWING STRUCTURES (D. Tuborz) |
| ORGANIZATION OF WORK IN GREENHOUSE PRODUCTION WITH THE HELP OF THE NETWORK PLANNING TECHNIQUE (S. Christof) |
| STUDIES ON THE ORGANIZATION AND STANDARDIZATION OF LABOUR INPUT IN GREENHOUSE PRODUCTION (Dr. A. Burzig) |
| RESULTS OF THE RESEARCH WORK IN DESIGNING GREENHOUSES (A.P. Shipilov) |
| ECONOMIC EVALUATION OF VARIOUS TYPES OF GREENHOUSES (Ir. D. Meijaard) |
| CERTAIN PROBLEMS OF THE ECONOMIC EFFECTIVENESS OF GREENHOUSE VEGETABLE GROWING IN BULGARIA (Prof. Todor Popov, V. Popova) |
| THE NEW ECONOMIC SYSTEM OF SOCIALIST SCIENTIFIC ORGANIZATION OF PRODUCTION AND MORE PARTICULARLY THE UTILIZATION OF CONTEMPORARY ELEMENTS AND MEANS OF MANAGEMENT (P. Dr. E. Seidel) |
| PRESENT STATE AND PROBLEMS OF THE TECHNOLOGY OF TRANSPORT IN GREENHOUSES (Dr. O. Lekve) |
| ESTABLISHING OPTIMAL STRUCTURE OF GREENHOUSE VEGETABLE GROWING BY MEANS OF MATHEMATICAL METHODS (L. Hristovich, S. Gyurov, N. Hristovich) |
| INFLUENCE OF SOIL COMPACTION ON TOMATO GROWTH AND REPRODUCTIVE MANIFESTATIONS (A. Ivanov) |
| EFFECTIVITY OF AIR AND SOIL HEATING IN PLASTIC GREENHOUSES (N.P. Savinova, D.O. Ljiobl) |
| BELAYA DACHA STATE FARM EXPERIENCE IN ORGANIZING THE YEAR-ROUND GREENHOUSE VEGETABLES SUPPLIES TO MOSCOW (G.M. Donetz) |
| PECULIARITIES IN THE USE OF PLASTIC-COVERED PLANT-GROWING STRUCTURES IN EAST SIBERIA (U.S. Kudryashev) |
| PROBLEMS OF THE DEVELOPMENT OF VEGETABLE PRODUCTION IN PLANT GROWING STRUCTURES IN THE RUSSIAN SOVIET FEDERAL SOCIALIST REPUBLIC (V. Pshenichni) |
| DESIGNING PLANT GROWING STRUCTURES IN THE SOVIET UNION (L.G. Lapinski) |
| EXPERIMENTS ON THE USE OF FERTILIZED PEAT AS A CAPPING MEDIUM FOR STRAW SUBSTRATES (M.J. Woods) |
| SCIENTIFICALLY SUBSTANTIATED COMPUTATION AND INFORMATION SYSTEMS IN GREENHOUSE AND HOTBED VEGETABLE GROWING (B. Etzoll) |
| POSSIBILITIES OF USING ENCARSIA FORMOSA GAH AND ASCHERSONIA ALEURODES WEBBER IN THE CONTROL OF TRIALEURODES VAPORARIORUM WESTW (E. Hristova) |
