Incremento del rendimiento y calidad nutricional del arroz con fertilización NPK complementada con micronutrientes

Jairo Cedeño, Galo Cedeño, Johanna Alcívar, Jessica Cargua, Frowen Cedeño, George Cedeño, Gonzalo Constante


El objetivo de la investigación fue evaluar el efecto de la fertilización NPK complementada con micronutrientes sobre el rendimiento y calidad nutricional del arroz. Se condujo un experimento en diez fincas arroceras de la zona de San Jacinto, Rocafuerte, Manabí. En cada finca se establecieron dos parcelas de 100 m2, donde una recibió fertilización NPK + micronutrientes y la otra solo fertilización convencional con NPK. En ambos casos la dosis de fertilización fue de 180, 70 y 60 kg ha-1 de N, P y K, respectivamente. En el primer caso se utilizaron fertilizantes compuestos que incluyeron micronutrientes y en el segundo caso fertilizantes convencionales. Los datos fueron analizados con prueba estadística de t de Student para observaciones pareadas. Las principales variables registradas fueron rendimiento y contenido nutricional del grano. Se evidenció un incremento en rendimiento del 36,85% con la fertilización NPK + micronutrientes en relación al tratamiento control con NPK. De forma similar el contenido proteico, Fe y Zn se incrementó en 18,33, 31,58 y 33,33%, respectivamente, con la aplicación de micronutrientes, en contraste a la fertilización tradicional con NPK. Los resultados mostraron que la aplicación de micronutrientes contribuyó significativamente al incremento del rendimiento y calidad del grano de arroz.


Palabras clave

nutrición del arroz; elementos menores; productividad; biofortificación; calidad nutraceútica.

Texto completo:



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Received May 29, 2018.

Accepted November 12, 2018.

Corresponding author: (G. Cedeño).


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