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This study aimed to evaluate the morphogenetic characteristics of Mavuno grass (Urochloa hybrid) submitted to different ratios of N:K fertilization. The experiment took place in a greenhouse at Fazenda Escola de Igarapé-Açu, Pará. A completely randomized design was carried out, with six treatments referring to the proportions of nitrogen and potassium applied, respectively 0:0; 75:0; 0:75; 75:75; 150:75; 300:150 kg.ha-1 of nutrient. Ten seeds were sown in each pot containing soil corrected by liming. The seedlings were thinned after 14 days, leaving only 3 plants. Every 7 days, evaluations of the morphogenetic characteristics were carried out, immediately after fertilization. After measurements with a ruler, it was possible to calculate the morphogenetic variables of Mavuno grass: Leaf Elongation Rate (LER), Leaf Appearance Rate (LAR), Phylochron (Phylum), Leaf Life Duration (LLD), Leaf Senescence Rate (LSR) and Stem Elongation Rate (SER). Data were submitted to analysis of variance, and when significance (P |
