Efectos de población y fertilización en dos híbridos de maíz (Zea mays L.) sembrados en la zona de Babahoyo, Provincia de Los Ríos

VIII. SUMMARY The present investigation was carried out in the lands of the Faculty of Agricultural Sciences of the Technical University of Babahoyo located at kilometer 7.5 of the Babahoyo Montalvo road, in the province of Los Ríos. Two corn hybrids were investigated, in two planting distances and four fertilization programs, in three replications. The objective of the work was to evaluate the application of the programs in the production of the proposed hybrids. The sowing of corn was done with the materials Batalla and DK-7508 in experimental units of 20 m2. The treatments were distributed in a split plot design. The evaluation of means was performed with the Tukey significance test at 5%. The evaluated variables were: height of plant, height of insertion, days to flowering, days to harvest, diameter of ears of corn, length of ears, relation grain-gopher, weight of grain, yield per hectare, agronomic efficiency, leaf analysis and economic analysis . The results show that the highest grain yield was obtained in the hybrid DK-7508 sown to 95 238 plants / ha and fertilized with the Program 1 (160 kg / ha N, 30 kg / ha P, 90 kg / ha K, 30 kg / ha S, 20 kg / ha Mg, 3 kg / ha Zn, 2 kg / ha B) with 10166.67 kg / ha. In addition, the same material showed the highest profit and net benefit. The agronomic efficiency shows that the DK-76508 sown to 95 238 plants / ha and fertilized with the Program 1 (120 kg / ha N, 32 kg / ha P, 60 kg / ha K, 20 kg / ha S, 20 kg / has Mg, 3 kg / ha Zn, 2 kg / ha B), had the best assimilation rate. The analysis shows that the hybrids in the separations that were fertilized with low dose (Program 4) presented deficiencies of nitrogen, phosphorus and magnesium. The values of potassium and copper were deficient for all treatments, while the levels of calcium, iron, zinc, manganese and boron are adequate.

• Glavni avtor: Sisalema Acosta, Kather Liseth (author)
• Format: bachelorThesis
• Jezik: spa
• Izdano: 2019
• Teme: Efectos; Población y Fertilización; Dos híbridos; Maíz
• Online dostop: http://dspace.utb.edu.ec/handle/49000/6102