Evaluación de la eficiencia de nutrientes en dos variedades de arroz (Oryza sativa L.)

Abstract

RICE IS CONSIDERED ONE OF THE MAIN FOODS IN THE DIET OF ECUADOR, BEING A SOURCE OF VITAMINS AND MINERALS SUCH AS VITAMIN D, CALCIUM, FIBER, IRON, AMONG OTHERS. THE OBJECTIVE OF THIS WORK IS TO EVALUATE THE NUTRIENT EFFICIENCY OF TWO RICE VARIETIES INIAP-11 AND INIAP-14. THE RESEARCH WAS CARRIED OUT AT THE DIANA PATRICIA FARM LOCATED IN SANTA GENARA, CANTON BALZAR, GUAYAS PROVINCE. A COMPLETELY RANDOMIZED BLOCK DESIGN WITH A SPLIT-PLOT ARRANGEMENT WAS USED, IN WHICH EIGHT TREATMENTS PLUS TWO CONTROLS WERE USED, WITH THREE REPLICATIONS EACH, TOTALING 30 EXPERIMENTAL UNITS. THE VARIABLES EVALUATED WERE: PLANT HEIGHT, NUMBER OF PANICLES PER PLANT, NUMBER OF GRAINS PER PANICLE, YIELD, NPK AGRONOMIC EFFICIENCY, NPK RECOVERY EFFICIENCY AND NUTRIENT EXTRACTION. THE STATISTICAL ANALYSIS WAS PERFORMED BY ANOVA, THE VARIABLES THAT PRESENTED SIGNIFICANT DIFFERENCES WERE SUBJECTED TO A MEAN COMPARISON ANALYSIS, USING THE LSD FISHER TEST (P < 0.05).