Eficiencia agronómica de fertilizantes nitrogenados y potásicos, sobre el comportamiento agronómico del arroz (Oryza sativa) bajo riego en la zona de Babahoyo

The experimental work was carried out on the grounds of the "Palmar" Experimental Farm owned by the Technical University of Babahoyo., In the Babahoyo canton, the variety of rice used was SFL-11, in which the effect of the application of potassium and nitrogen based fertilizers on irrigated rice production. With this, the effects of the doses of the products on the agronomic behavior and an economic analysis of the grain yield based on the cost of the treatments were evaluated. The randomized complete blocks experimental design was used, with 11 treatments and three repetitions. Variables were evaluated: plant height, number of tillers, number of panicles, length of panicles, number of grains per panicle, weight of 1000 grains, days to flowering, days to harvest, grain yield, partial productivity per nutrient and analysis. economic. The evaluated variables were exposed to the analysis of variance, and the Tukey test was applied at 5% significance to determine the statistical difference between the means of the treatments. Observing the experimental results, no statistical significance was achieved in the number of tillers, number of panicles, length of panicles, days to flowering and number of grains. Plants with higher height were obtained by applying 300 kg/ha Urea + Potassium Muriate 150 kg/ha. The highest yield was reflected by applying Urea 300 kg/ha + Potassium Muriate 150 kg/ha. Treatment Urea 300 kg/ha + Potassium Muriate 150 kg/ha achieved the greatest benefit with $ 883.99. Higher PPN values were achieved by applying Urea 300 kg/ha + Potassium Muriate 150 kg/ha.

The experimental work was carried out on the grounds of the "Palmar" Experimental Farm owned by the Technical University of Babahoyo., In the Babahoyo canton, the variety of rice used was SFL-11, in which the effect of the application of potassium and nitrogen based fertilizers on irrigated rice production. With this, the effects of the doses of the products on the agronomic behavior and an economic analysis of the grain yield based on the cost of the treatments were evaluated. The randomized complete blocks experimental design was used, with 11 treatments and three repetitions. Variables were evaluated: plant height, number of tillers, number of panicles, length of panicles, number of grains per panicle, weight of 1000 grains, days to flowering, days to harvest, grain yield, partial productivity per nutrient and analysis. economic. The evaluated variables were exposed to the analysis of variance, and the Tukey test was applied at 5% significance to determine the statistical difference between the means of the treatments. Observing the experimental results, no statistical significance was achieved in the number of tillers, number of panicles, length of panicles, days to flowering and number of grains. Plants with higher height were obtained by applying 300 kg/ha Urea + Potassium Muriate 150 kg/ha. The highest yield was reflected by applying Urea 300 kg/ha + Potassium Muriate 150 kg/ha. Treatment Urea 300 kg/ha + Potassium Muriate 150 kg/ha achieved the greatest benefit with $ 883.99. Higher PPN values were achieved by applying Urea 300 kg/ha + Potassium Muriate 150 kg/ha.

El trabajo experimental se realizó en los terrenos de la Granja Experimental “Palmar” propiedad de la Universidad Técnica de Babahoyo., en el cantón Babahoyo, la variedad de arroz utilizada fue SFL-11, en el cual se determinó el efecto de la aplicación de fertilizantes a base de potasio y nitrógeno sobre la producción de arroz bajo riego. Con esto se evaluó los efectos de las dosis de los productos sobre el comportamiento agronómico y un análisis económico del rendimiento de grano en función al costo de los tratamientos. Se utilizó el diseño experimental bloques completos al azar, con 11 tratamientos y tres repeticiones. Se evaluaron las variables: altura de planta, número de macollos, número de panículas, longitud de panículas, número de granos por panícula, peso de 1000 granos, días a floración, días a cosecha, rendimiento de grano, productividad parcial por nutriente y análisis económico. Las variables evaluadas fueron expuestas al análisis de varianza, y se aplicó la prueba de Tukey al 5% de significancia para determinar la diferencia estadística entre las medias de los tratamientos. Observados los resultados experimentales no se logró significancia estadística en el número de macollos, número de panículas, longitud de panículas, días a floración y número de granos. Plantas con mayor altura se obtuvieron aplicando en la fertilización Urea 300 kg/ha + Muriato de potasio 150 kg/ha. El mayor rendimiento se reflejó aplicando Urea 300 kg/ha + Muriato de potasio 150 kg/ha. El tratamiento Urea 300 kg/ha + Muriato de potasio 150 kg/ha alcanzó el mayor beneficio con $883,99. Valores mayores de PPN se alcanzaron aplicando Urea 300 kg/ha + Muriato de potasio 150 kg/ha.