EN
In the years 2000-01 the influence of cultivation technology on the health status and yields of spring barley cultivars: naked - Rastik and hulled - Rataj). Cultivation technologies included three variants, that differed for level of mineral fertilization and pest management: extensive (without fertilization and plant protection); conventional - 140 kg•ha-1 NPK, fungicide Tilt Plus 400 EC (Propikonazol and Fenpropidyna) and the herbicide Aminopielik D 450 SL (2,4 D and Dikamba); intensive - 280 kg•ha-1 NPK, fungicide Tilt Plus 400 EC (Propikonazol and Fenpropidyna), herbicides Compete 240 EC (Fluoroglycofen ethyl) + Granstar 75 WG (Tribenuron methyl) and the retardant Cerone 480 SL (Etefon). In both years during which the tests were conducted the course of the weather did not favour development of diseases on the above ground parts of barley. With the increase in intensity of crop management, the health status of spring barley regarding the effect of net blotch (Pyrenophora teres) on the plant improved. The naked cultivar Rastik proved to be more susceptible to net blotch and pathogens causing the foot-rot complex than the hulled cultivar Rataj. The cultivation technology did not have an influence on the infection of the plants by pathogens causing the foot-rot complex. The factors controlling the yield of spring barley were the weather pattern, crop production technologies, cultivar, and, to the smallest extent, the plant infection by pathogens.