Resumo

RESQUIN, Adolfo Leguizamón et al. Effect of potassium fertilization and spacial arrangements on tomato production (lycopersicum esculentum mill). Rev. Inv. Cs. Agro. y Vet. [online]. 2024, vol.8, n.22, pp.29-40.  Epub 20-Jan-2024. ISSN 2664-0902.  https://doi.org/10.33996/revistaalfa.v8i22.245.

Tomato production is an important income item for many of the producers in the Concepción area. In recent times it has suffered a decrease in yield. For this reason, the objective of the work is to evaluate the effect of the Potassium fertilization and spatial arrangements in tomato production. The experiment was carried out in the Locality of María Auxiliadora km 27 Ruta V, District of Belén, Department of Concepción, Paraguay. The randomized complete block experimental design (DBCA) was applied, with a 3 x 4 factorial arrangement, with factor A being spacing between plants 0.60, 0.70, 0.80 m and factor B dose of potassium fertilizers. 0, 50, 100, 150 K2O kg ha-1, with three repetitions. The transplant was carried out once the seedlings developed three to four true leaves, with a distance between rows of 1.0 m and between plants according to the treatments. Each experimental unit had 4 rows 4 m long. The application of potassium fertilizer was carried out 30, 45 and 60 days after transplanting. The harvest began at 45 Days After Transplantation (DAT). The determinations evaluated were plant height, number of fruits per plant, individual weight, longitudinal and equatorial diameter, and yield per plant. The comparisons of the arithmetic means were subjected to Analysis of Variance, and the means, compared to each other, were subjected to the 5% Tukey Test and regression analysis. The results showed that there were significant differences for most of the determinations. The best result for determining performance was obtained with T3. 100 kg ha-1 of potassium with a spacing of 60 cm between plants.

Palavras-chave : Production of Lycopersicum esculentum Mill; Agricultural production; Potassium; Number of fruits, Yield.

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