Evaluation of the Effect of Conventional and Stabilized Nitrogen Fertilizers on the Nutritional Status of Several Maize Cultivars (Zea mays L.) in Critical Growth Stages Using Plant Analysis

The study presents the results of a three year field trial aimed at assessing nutritional status maize in critical growth stages by means plant analysis cultivation cultivars differing their agronomic and genetic profile. main research problem was to demonstrate whether availability nitrogen from stabilized fertilizers for “stay-green” varieties is consistent with dynamics demand this component. This very important both economic aspect cultivation. showed significant response different fertilizer formulations, which observed period five-leaf stage full flowering stage. advantage fertilizer, UltraGran stabilo, over other BBCH 15 demonstrated only cultivar, ES Metronom, produced greater aerial mass while maintaining concentration level two cultivars. potassium content shaped kernel weight ear stage, confirming importance interaction these elements forming feature as predictor grain yield. trait (expressed R2 coefficient) manifested each study, but especially years optimal weather patterns (i.e., first year). fertilizers, an increase nutrients chlorophyll leaf, that considered predictive organ Super N-46 had positive effect on (CCI parameter) increased its efficiency excitation energy transfer (the F0 parameter).