Content area
Objective: This study aimed to evaluate the agronomic performance of the Tatu peanut cultivar under different row spacings in the Eastern Amazon region, seeking to identify the most efficient spatial arrangement for cultivation. Theoretical Framework: The research is based on studies concerning the influence of plant population density and spatial arrangement on the growth and productivity of peanuts, especially under tropical edaphoclimatic conditions. Method: The experiment was conducted in a randomized block design with three row spacings (single, dense, and double) and four replications. Variables analyzed included plant growth (height, number of branches), productivity (fresh mass, number of pods per plant), and quality (weight of 100 dry pods). Data were analyzed using ANOVA and Tukey's test at a 5% significance level. Results and Discussion: Results showed that the double row spacing favored branching and pod weight, while the single spacing resulted in greater fresh biomass and number of pods per plant. The dense spacing showed the lowest overall performance due to high intraspecific competition. Research Implications: The findings provide technical guidance for peanut management in humid tropical regions, supporting increased production efficiency in smallholder farming systems. Originality/Value: This study is pioneering in evaluating row spacing effects on Tatu peanuts in the Eastern Amazon, offering original data for the region and enhancing knowledge on sustainable practices in peanut cultivation.