The aim of the study was to determine the effect of drip irrigation and ni-trogen fertilization on yields of ‘Kutnowska' onion grown on the very light soil in the region characterized by rainfall deficits during the vegetation period. Field experiments were carried out in 2003-2004 at Kruszyn Krajeński near Bydgoszcz on a soil belonging to the VI class (degraded black earth belonging to the very poor and poor rye complex). Field water capacity in the layer 0-50 cm amounted 57,5 mm, and the effective useful retention was 29,3 mm. Field trial was established and conducted in three replications as two-factorial experiment in split-plot design. Irrigation was the first order factor used in the two variants: without irrigation (control) and drip irrigation at - 30 kPa. The second order factor was nitrogen fertilization: N0 - 0 kg N ha-1(control), N1 -70 kg N ha-1, N2 - 140 kg N ha-1, N3 - 210 kg N ha-1. Drip irrigation was the basic yield-creating factor, securing the cultivation of onion on the loose sandy soil. Marketable yield obtained from ir-rigated plots - average for years and nitrogen doses - amounted 33,2 t•ha-1. Un-der conditions of optimum moisture secured by irrigation, the ...
The purpose of the study was the analysis of chosen vegetables on the basis of national production and one of the Groups Vegetables Producers and production trends in 2011-2014 as well. The data obtained were from the Central Statistical Office and directly from the company ‘Daukus'. In the period 2011-2013, taking into account the whole country the highest prices were recorded in 2013, which could have the effect of increasing crop acreage and yield in 2014. ‘Daukus' produced most product in 2014 and it had an impact on increasing the area and favorable conditions weather. Vegetable prices in 2014 significantly decreased by increasing the supply and political factors. In the production of vegetables in Poland is visible intensification, which means that there are fewer farms, but those that exist to increase the amount of vegetables produce. ...
