The paper presents the results of a field experiments with irrigation faba bean cultivar 'Olga' which were carried out on sandy soil in the years 2010-2012 nearby Bydgoszcz in the Research Centre of University of Technology and Life Science - Mochełek. Particular vegetation seasons were different, especially related to rainfall, which determined the amount of applied irrigation doses. The highest-level need for irrigation occurred in 2010, when 180 mm of irrigated water was used; while in subsequent years rainfalls were distributed more preferably thus for irrigation were used 65 mm. Based on the results, it was found that the water needs of faba bean cultivated on sandy soil in the period from April to August amounted to about 400 mm. Seed yield of faba bean collected from control plots ranged in successive years from 1.23 t.ha-1 (2010) to 5.55 t.ha-1 (2012). Irrigation increased the yield significantly by an average of 1.59 t.ha-1, the highest increase in crop (3.66 t.ha-1) was obtained in 2010 by using the highest dose of irrigation. Yield collected from irrigated plots were not stable in the subsequent years, they averaged 5.00 t.ha-1, varying between 3.84 t.ha-1 (2011), and 6.27 t.ha-1 (2012). Based on the results of ...
The paper presents the results of a four-year (2007/08-2010/11) field ex-periment with oilseed rape cultivar 'Californium' grown under sprinkler irrigation, conducted in a sandy soil in Research Centre ‘Mochełek' set in the vicinity of By-dgoszcz, owned by the Faculty of Agriculture and Biotechnology, University of Technology and Life Science.During the spring vegetation of winter oilseed rape in subsequent years occurred uneven needs of irrigation, mostly in May and June. On average 102.5 mm of water was used and seasonal dose ranged from 55 mm in the year 2009 to 150 mm in 2008. In three of four years, the need of irrigation in winter oilseed rape occurred most in late April and May, and May and June. During the years of experiment, the winter oilseed rape yielded on average at the level of 4.19 t.ha-1, but in the consecutive growing seasons the yield was unstable; lowest yield of 2.99 t.ha-1 was collected in 2011, and the highest of 5.45 t.ha-1 in 2009. The use of irrigation resulted in an increase in seed yield by an average of 1.36t.ha-1 (29.3%). The largest increase in seed yield due to sprinkler irrigation (2.00t.ha-1) was obtained in 2011 by applying dose of 130 ...
