Resumen

LOPEZ AVALOS, Derlys Fernando et al. Agronomic effectiveness of phosphate fertilizer sources in corn (Zea mays. L) cultivation. Rev. Inv. Cs. Agro. y Vet. [online]. 2025, vol.9, n.26, pp.465-482.  Epub 05-Mayo-2025. ISSN 2664-0902.  https://doi.org/10.33996/revistaalfa.v9i26.359.

This study evaluated the agronomic effectiveness of different sources of phosphate fertilizers on corn crops in Santa Elena, Concepción, Paraguay, between September and December 2023. The objective was to compare the impact of triple superphosphate and TOP PHOS, applied at doses of 0, 45, 90, and 135 kg ha⁻¹ of P₂O₅, on corn growth and yield. A randomized complete block design with a two-factor scheme and three replications was used. The variables analyzed included plant height, ear length and diameter, and yield. The results showed that the phosphorus source did not significantly influence plant height or ear dimensions, but P₂O₅ doses did. The highest yield (the exact value is not specified) was obtained with 90 kg ha⁻¹ of P₂O₅ and triple superphosphate. It is concluded that a dose of 90 kg ha⁻¹ of P₂O₅ improves corn productivity under these conditions.

Palabras clave : Corn cultivation; Phosphorus dosage; Phosphate fertilizers; Crop productivity; Agricultural yield; Triple superphosphate..

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