Densidade de semeio de microverdes de Amaranthus cruentus sob diferentes condutividades elétricas das soluções nutritivas
DOI:
https://doi.org/10.35642/rm.v9i1.1573Palavras-chave:
Amaranto, Biomassa, Cultivo Hidropônico, RendimentoResumo
La demanda de alimentos más saludables y de producción sostenible ha llevado al sector agrícola a adoptar técnicas modernas y a explorar nuevas especies vegetales. Los microvegetales, cosechados en etapa de plántula, han ganado popularidad, pero aún faltan información sobre sus prácticas de cultivo. El objetivo del estudio fue evaluar el cultivo de microvegetales de amaranto (Amaranthus cruentus L.) bajo diferentes densidades de siembra y niveles de conductividad eléctrica (CE). El diseño experimental correspondió a un modelo de bloques al azar en parcelas divididas, con cuatro réplicas. Se utilizaron tres niveles de CE (agua de suministro – CEa de 0,3 dS m-1 y soluciones nutritivas – CEsol de 1,0 y 2,0 dS m-1) en las parcelas y cuatro densidades de siembra (25, 50, 75 y 100 g m-2) en las subparcelas. Los microvegetales de amaranto fueron cultivados bajo dichas condiciones durante ocho días en un invernadero, evaluándose los siguientes parámetros: altura de las plántulas (AP), masa fresca de las plántulas (MFP), masa seca de las plántulas (MSP), contenido de humedad de las plántulas (CHP) y masa de semillas necesaria para producir 1 kg de MFP. Los rendimientos más bajos de amaranto se registraron cuando se utilizó únicamente agua para el riego, lo que resalta la necesidad de emplear soluciones nutritivas para su cultivo. La MFP alcanzó su valor máximo con densidades de siembra de 70 y 67 g m-2 bajo una CEsol de 1,0 y 2,0 dS m-1, respectivamente. Se concluye que el amaranto puede cultivarse de manera eficiente con una densidad de siembra de 70 g m-2 y riego con una solución nutritiva a una CE de 1,0 dS m-1.
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