Efecto de la fertilización orgánica combinada con NPK en cultivo de arroz Oryza sativa L.

Abstract:

The present research work was carried out during the rainy season, from December 2016 to April 2017, in taura parish, Naranjal Canton, Guayas province with loamy texture soil and flat topography. Rice variety SFL-09, and India Pronaca, was used for this study, with the general objective: To study the effect of an organic fertilizer plus NPK in rice cultivation (Oryza sativa L.) to respond to the specific objectives which were framed In: a) Evaluating the behavior of the agronomic variables of the crop, b) Determining the optimal dose for the cultivation of the organic fertilizer Naturcomplet G, c) Evaluating the most recomendable dose of NPK, and d) Running a financial analysis of the treatments under study. To do this, the factors studied were two doses of fertilizer NPK (80- 30-90 and 160-60-180 kg / ha) and four doses of slow release humic acids, Naturcomplet-G (0, 5, 10 and 15 kg / ha), a fully ramdomized blocks design with 2 x 4 factorial arrangement of 8 treatments and 4 blocks. Statistical analysis was performed using the variance analysis method (ANOVA) and Tukey testing of means at 5% of probabilities. We conclude: the agronomic characteristics days of flowering and vegetative cycle, were not affected by the doses of the fertilizer NPK and those of humic acid; 15 and 10 kg / ha of humic acid had the highest values in terms of the panicle length (25.99 and 25.56 cm respectively) and in the number of grains per panicle (166.46 and 169.69 grains respectively); The height of the plant, obtained was of higher values when humic acid was applied; NPK fertilizer with doses of 160-60-180 kg / ha showed the best values in the number of panicles per plant with 30.21, in the number of grains per panicle with 166.54, in the weight of 1000 seeds with 25.04 grams and in The agricultural yield with 5979 kg / ha; The number of panicles per plant reached the highest values in treatments 8 and 7 with 35 and 34.3 respectively; and the combination of NPK Fertilizer at the dose of 80-30-90 kg / ha with humic acid

Año de publicación:

2017

Keywords:

• FERTILIZANTE ORGANICO
• Arroz
• FERTILIZANTE NPK

Fuente:

rraae