RESEARCH ON THE IMPROVEMENT OF GRASSLANDS IN THE UPPER BASIN OF THE SUCEAVA RIVER BY MEANS OF ORGANIC FERTILIZATION
S. Chidoveţ, V. Vîntu, C. Sârbu, Doina Tarcău, M. Stavarache, C. Samuil
The objective of the present study is to analyze the influence of organic fertilization on the production and the floristic composition of Agrostis capillaris L. and Festuca rubra L. grasslands in the upper basin of the Suceava River. The study will be used, as a starting point, to identify the necessary measures for the sustainable management of these grasslands. The study was conducted during several field trips between 2009 and 2011, in Poiana Cerbul, Putna village, where we set up a fertilization experiment comprising five variants and three repetitions. The field samples were collected and were sent to the laboratory for analysis, in order to highlight the main aspects of the floristic composition and production for each variant. By means of fertilization, we have achieved a distinct and very significant increase in both total DM production and the amount of crude protein produced per area unit. Under the influence of organic fertilization, the share of Fabaceae family species, having a high forage value, has increased, while that of other botanical families has decreased.
Key words: organic fertilizer, production, biodiversity