Published in Scientific Papers. Series A. Agronomy, Vol. LXVI, Issue 1
Written by Biser BOZHANSKI, Minko ILIEV, Magdalena PETKOVA, Tatyana BOZHANSKA
It was found that the dry mass of grasslands with organic fertilizing was by 2.0% higher in vitro digestibility of dry matter, higher content of CP (by 0.1%), CFr (by 1.7%) and N (by 0.1%), and a lower concentration of cellulose (by 0.3%) compared with of the mineral fertilizing variants, which led to a more in the concentration of NFE (by 1.2%), NDF (by 2.9%), hemicellulose (by 2.8%), Ca (by 0.3%) and P (0.2%). The energy nutritional value of fodder with of the mineral fertilizing of exceeded that of control with 0.4-2.8% and at оrganic fertilizing with 0.5-0.8%. A high correlation was found between the nitrogen content and CP (r = 1.0) of the grasslands with mineral fertilizing. The theoretical regression line and the equation of the regression dependence between the values of the indicators show y = 7.2224x -0.4841 at a high coefficient of determination (R2 = 0.9988). For the variants with manure, the concentration of CP registered proven correlation (r = 1.0) and regression dependence with the nitrogen content: y = 6.9861x - 0.0815 at R2 = 0.9999 (P<0.05).
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{simplepopup popup="false" name="Citation32"}BOZHANSKI B., ILIEV M., PETKOVA M., BOZHANSKA T. 2023, IMPACT OF CONVENTIONAL AND ORGANIC FERTILIZATION ON THE QUALITY AND NUTRITIONAL VALUE OF DEGRADED MOUNTAIN PASTURES. Scientific Papers. Series A. Agronomy, Vol. LXVI, Issue 1, ISSN 2285-5785, 241-250. {/simplepopup}