Evaluation of the Effectiveness of NBPT and NPPT Application as a Urease Carrier in Fertilization of Maize (Zea mays L.) for Ensiling

The study presents the results of a 3-year field trial aimed at assessing yield and quality raw material for ensiling in cultivation three maize varieties differing their agronomic genetic profile, conditioned by selection nitrogen fertilizer. Maize cultivar ES Metronom showed significant advantage over other cultivars when fertilized with UltraGrain stabile, or alternatively Super N-46. application nitrogen-stabilized fertilizers urea + N-Lock significantly increased green fodder ensiling. “stay-green” were characterized higher content non-structural carbohydrates, including starch water-soluble sugars, lower structural compared to conventional cultivar, which suitability negative effect fertilization ammonium nitrate on chemical composition was demonstrated reduced carbohydrate contents, crude fiber NDF. In turn, positive shown its NDF ADF fractions. analysis number weight leaves may indicate highly effective utilization (“stay-green” hybrids), leading faster formation larger assimilation surface, is basis efficient absorption solar radiation. obtained clearly show that only correct choice variety silage cultivation, combined fertilizer guaranteeing access N during growing season, can guarantee high