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The economical efficiency of the application of an increasing hydrogel dose in cultivar mushrooms (Agaricus bisporus (Lange) Sing. Imbach) has been experimented in controlled weather conditions. It was found that the application of a 50g·m-2 hydrogel dose is not economically proved due to the lack of yield significant increase. In the cultivation of this particular variety of mushrooms, the optimal...
The paper presents an analysis of the regional differentiation of pig production in Poland in 2004. The research included volume of pig stock and production, purchase and slaughter of hog livestock according to provinces. Relative concentration was used for the estimation of the degree of irregularity of distribution pig stock among provinces. Florence location ratio was used for estimation of similarity...
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