NITROGEN SOURCE DOES NOT CHANGE THE MORPHOPHYSIOLOGICAL CHARACTERISTICS OF MAIZE ON A CLAY SOIL

This study aimed to evaluate the effect of different nitrogen fertilizer sources and rates on morphophysiological characteristics use efficiency maize. The experiment was set in Campos Novos, Santa Catarina State, Brazil, during 2016/2017 2017/2018 growing seasons. experimental design a randomized block with treatments arranged split plots. Four were evaluated main plots: conventional urea, protected nitrification inhibitor-treated urease urea. assessed 0 (control), 140, 280, 420 kg N ha−1. Nitrogen source did not affect ear height, leaf area index, stem diameter, or number senescent leaves. Increments rate increased plant grain content but decreased efficiency. Stabilized (nitrification/urease inhibitor-treated) influence improve maize compared