Regionalne zróżnicowanie zużycia kwalifikowanego materiału siewnego w Polsce i jego zmiany w latach 2004-2014
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The aim of the study is to determine changes in the level of consumption of certified seed of cereals in
Poland in the years 2000-2014 and to determine if there is convergence of level of consumption of certified
seeds by provinces in Poland. The analysis covered the period 2004-2014 and statistical data of CSO of
Poland were used. It was found that the level of consumption of certified seed of cereals in agriculture in
Poland has remained at level of about 170 thousand tonnes per year and per 1 ha of cereals production it
is level of 30 kg. The diversity of use of the certified seeds between the regions ranged from 10 to 70 kg/ha,
and for particular species it was from 14 kg per hectare for rye to 50 kg/ha for spring wheat. For the level
of consumption of certified seed the existence of beta convergence and sigma convergence were found for
regions, but these relations were not statistically significant. Only in the case of spring wheat and spring
barley there were found beta convergence, and for oats and triticale beta divergence occurred. In Poland,
still maintains a strong regional differences in the level of consumption of certified seed.