The purpose of this study was to determine the effect of cultivar characte-ristic, irrigation and the four variants of nitrogen fertilization on economic useful-ness of brewing barley grain cultivars. Economic suitability of brewing barley 'Mauritia' and 'Martha' cultivars was define on the basis of plump grains yield, malting productivity and malt weight, which are possible to obtain from 1 hectare of cultivation. A field experiment was conducted during the growing season 2010 on sandy soil in Mochełek near Bydgoszcz. During irrigation, a total of five doses of 105 mm of water was used. From barley grain of thickness over 2.5 mm, Pilsner type malts were obtained in laboratory conditions. It was found that higher eco-nomic usefulness, determined on the basis of grain yield, malts weight and malting productivity was characterized by a brewing barley cultivar 'Marthe'. The intro-duction of irrigation in technology of brewing barley cultivation, regardless of ni-trogen fertilization, has contributed to increased grain yield and malting produc-tivity from unit area. Optimal level of nitrogen fertilization for tested cultivars of brewing barley is 30 kg.ha-1. Increasing the nitrogen dose from 30 to 60-90 kg.ha-1, did not result in significant increases in weight of plump grains and malts.
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The aim of the research was an evaluation the impact of sprinkling irrigation, nitrogen fertilization as well as an interaction of the two factors on yield and malting quality of grain of two malting barley varieties‘Mauritia' and ‘Marthe'. A field experiment was conducted during the growing seasons in years 2010-2011 on sandy soil with dense subsoil in the Research Centre of University of Technology and Life Science - Mochełek nearby Bydgoszcz. This is an area in Poland of the highest average precipitation shortages and the needs of use the supplemental irrigation in terms of the climate criterion. On such type of soil, the irrigation had an interventionist role which is typical for the climatic conditions in Poland. It complemented periodic shortages of precipitation during the increased water needs of barley. Research hypothesis assumed that the use of irrigation in the technology of barley cultivation will increase and stabilize yields of grain and contribute to the acquisition of raw material that meets the criteria of brewing, regardless of the agricultural droughts occurring in a growing season. It was also assumed that, in terms of irrigation it would be possible to use higher doses of fertilizer than in conventional ...
A field experiment was conducted during the growing season 2010 on sandy soil in Mochełek near Bydgoszcz. The effects of irrigation and the four variants of nitrogen fertilization on yield and quality of grain from brewing barley varieties 'Mauritia' and 'Martha' were inwestigated. Growing season of barley in terms of total rainfall belonged to the wet, however, was marked by an extremely uneven distribution of rainfall in different decades. During the period of tillering and ripening stage of barley rainfall amounted to only 16.3 mm, which resulted in the need for irrigation of plants. A total of five doses of 105 mm of water was used. It was found that yields of barley grain ranged from 3.05 kg.ha-1 to 6.34 kg.ha-1, depending on the variety, irrigation and nitrogen fertilization variant. Regardless of the factors used, higher average yields of 31% was characterized by a variety of 'Martha'. The average increase in grain yield due to application of irrigation was 37.3%. This indicates the high desirability of introducing this treatment to the malting barley production technologies as a factor which increases the amount of grain yield in growing seasons characterized by the occurrence of atmospheric and agricultural dry spells in ...
