Articles by Helena Gorecka (2)

Effect of Dietary Humic Preparations on the Content of Trace Elements in Hens’ Eggs

Zbigniew Dobrzanski, Henryk Gorecki, Katarzyna Chojnacka, Helena Gorecka and Marzena Synowiec

American Journal of Agricultural and Biological Sciences 2 ( 4 ): 234 - 240 , 2007

New Role of Sulfuric Acid In Production of Multicomponent Fertilizers From Renewable Sources

Helena Gorecka, Henryk Gorecki, Katarzyna Chojnacka, Marzanna Baranska, Izabela Michalak and Agnieszka Zielinska

American Journal of Agricultural and Biological Sciences 2 ( 4 ): 241 - 247 , 2007

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