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 ...
The paper presents results of a controlled field experiment with sprinkler irrigation of winter oilseed rape (Latin name) cv. Arsenal F1 Linagrain and winter wheat (Latin name) cv. Franz, conducted in the vegetation season of 2016 (dry in terms of the recorded precipitation total) on a family farm in Kobylata, the Kłodawa commune, the Wielkopolskie Province. Water requirement observed as early as April was balanced by sprinkler irrigation in seasonal application rates ranging from 75 mm (rape) to 105 mm (wheat). Sprinkling of winter rape was the factor having a highly significant effect on seed yield volume, on average from 4 plots amounting to 4.1 t·ha-1 and by 17.4% greater than the yield harvested in the non-irrigated plots (control) - of 0.6 t·ha-1. Winter wheat, at the application of sprinkler irrigation, also produced greater yields (by 24%) in comparison to the non-irrigated plots. Mean grain yield of wheat in the irrigated plots was by 1.9 t·ha-1 greater. Advisability of irrigation, apart from higher yielding, may also be indicated by water use efficiency in these crops. Every mm of sprinkled water caused an increase in of rape by 7.9 kg, while in wheat by 17.8 kg. ...
