Eficiencia agronómica y económica de la fertilización líquida en maíz amarillo duro bajo secano, en Portoviejo – Manabí

The objective of the research was to evaluate the agronomic and economic effectiveness of liquid fertilization in hard yellow corn under rainfed conditions, in Portoviejo-Manabí. The experiment was developed in the maize zone El Florón. The treatments consisted of two genotypes (INIAP H – 601 and INIAP H – 603) and three fertilization technologies (liquid fertilization in drench, liquid injected and granulated). The main variables recorded were grain yield (RG), agronomic efficiency of N (EAN) and net economic benefit (BEN). The RG and EAN were significantly influenced (p<0.05) by the fertilization treatments, regardless of the genotypes evaluated. The highest RG was achieved with injected and drenched liquid fertilization, with 8376.72 and 7898.39 kg ha-1, respectively. Likewise, the highest EAN was reached with injected liquid fertilization and drench, with 23.61 and 20.95 kg of grain kg-1 of applied N, respectively. Similarly, injected and drenched liquid fertilization obtained the highest BEN with 806 and 676 USD ha-1, respectively. It is concluded that under rainfed conditions in maize areas in Portoviejo is more convenient and profitable to carry out injected liquid fertilization and surface drenching

• Main Author: Trujillo Bayas, Jennyfer Esthela (author)
• Other Authors: Zambrano Loor, Selena Magdalena (author)
• Format: bachelorThesis
• Language: spa
• Published: 2022
• Subjects: Zea mays; Productividad; Eficiencia de N; Rentabilidad
• Online Access: http://repositorio.espam.edu.ec/handle/42000/1863