The regional differentiation of maize cropping area in Poland within 2000-2006
2008
Ksiezak, J.,Instytut Uprawy Nawozenia i Gleboznawstwa - Panstwowy Instytut Badawczy, Pulawy (Poland)
Data from the Central Statistical Office from 2000-2006 worked up in accordance with the current administrative division into voivodships was used as a source material. On the basis of k-Means cluster analysis different groups of provinces were distinguished according to the intensity of maize silage and grain production and the ability to use the productive potential of natural resources. Each group was characterized by selected parameters analysed against the background of the whole country. In the analysed period in Poland maize was cultivated in the area of over 500 thousand ha, and its percentage in arable lands amounted to 4.3. The following voivodships had the highest percentages: opolskie (11.5 percent), dolnoslaskie (9.65 percent) and wielkopolskie (6.49 percent), whereas pomorskie (1.5 percent) and zachodniopomorskie (1.73 percent) had the lowest percentage. In this period about 55 percent maize was cultivated for grain. Cultivation for grain was particularly dominant (77 percent) in the following, mainly southern voivodships: dolnoslaskie, slaskie, opolskie, malopolskie, podkarpackie and lubuskie, whereas in the northern voivodships (podlaskie, pomorskie, warminsko-mazurskie) cultivation for silage dominated (76 percent). The largest average grain and silage yields in the analysed period was noted in slaskie, opolskie and malopolskie voivodships. Valorization index of agricultural production area, poultry and pig stock were the factors that affected mostly maize production. In case of maize cultivated for silage the following additional factors were also important: yield of meadow hay, area of fodder production, area of grasslands, cattle stock, milk and beef production
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