STUDIES CONCERNING THE INFLUENCE OF BIODEGRADABLE SLOW-RELEASE FERTILIZER USE IN DEVELOPING THE CULTURE OF PETUNIA HYBRIDA SEEDLINGS Journal title: Current Trends in Natural Sciences Authors: Mona Popa, Silvana Danaila-Guidea, Gabriela Neata, Amalia Mitelut, Bela Pukanszky, Roxana Nicoleta M... Subject(s): Horticulture, Soil Sciences, Ecology, Landscape, Biology, Environmental Protection