Evaluación de dos distancias de siembra y tres niveles de fertilización con N, P, K, en el cultivo de maíz (Zea mays L.)

Abstract

This research was carried out to evaluate two planting distances and three levels of fertilization on the cultivation maize (Zea mays L.), from San José Chazo parish, canton Guano, Chimborazo province; it used an experimental design of randomized complete block arrangement divided Bifactorial in plots, with three repetitions. The six treatments are the result of two combination planting distances within 1.0m by 1.0m and 0.8m by 0.5m, and three levels of fertilization 150 kg N/ha (Nitrogen kilogram per hectare) K’s 80 kg/ha, 100 kg N/ha over 40 kg K/ha and 50 kg N/ha over 20 kg K/ha (Potassium kilogram per hectare). The variables were percentages of emergency, plant height, plant population per net parcel shelf height cob, quantification of chlorophyll content by chlorophyll meter SPAD 502, quantification of chlorophyll color table by IRRI performance tn/ha, it was determined that treatment with planting distance 1.0m by 1.0m and 150 kg N/ha over 80 kg K/ha (T3)(treatment 3) had the highest plant height, height of insertion of ear loaded corn, quantification chlorophyll content and performance main since the higher content of chlorophyll increased the content of nitrogen in the leaf, which increases performance in the cultivation of corn, so planting distances were not significantly different in performance, demonstrating that do not influence this variable. From the agronomic and economic point of view should be adopted treatment with planting distance, 1.0m by 1.0m and 150 kg N/ha over 80 kg K/ha (T3) due to it has a higher benefit/cost ratio and performance