The Effects of Spent Mushroom Substrate on the Yield and Nutritional Value of Festulolium braunii (K. Richt.) A. Camus

The aim of the experiment was to assess effects mineral and mushroom substrate nitrogen on yield selected parameters Festulolium braunii. To this end, a two-year field conducted between 2017 2018. Spent applied at three levels (10, 15 20 Mg·ha−1) four (30, 68, 105 180 kg·ha−1). Mineral phosphorus potassium were used one level only, with 60 150 kg·ha−1, respectively. research also included interaction organic fertilizers determination an optimal amount resulting in good-quality forage high yield. plant braunii, intergeneric hybrid Sulino variety. Treatment combinations significantly affected its yield, content total digestible protein, as well energy values. For most parameters, beneficial demonstrated, compared own. largest significant increase biomass, by 16% comparison plants treated only (N4PK); (by 17%), recorded for grass Mg·ha−1 together 68 kg·ha−1 (SMS2 + N2PK). highest dose contained smallest (SMS3 N1PK) resulted protein concentrations grass, 18% 21% more, respectively, than only. did not affect digestibility concentration net lactation (NEL).