Respuesta Productiva y Calidad de Fritura de Papa (Solanum Tuberosum l.), Var. Puzza, a la Aplicación de Titanio Y Abono Orgánico en Jaloa Alto, Quero, Tungurahua, Ecuador

Abstract

Potatoes (Solanum tuberosum L.) is cultivated in countries with a temperate climate and is a very important item for the diet of our country. It is well known that the Organic titanium (Org-Ti) is a production and quality bio-stimulant for crops and so is too, the positive impact of organic fertilizer (OF) in agriculture; but in the Ecuadorian Sierra, the benefits of Org-Ti and (OF) in potatoes (Solanum Tuberosum L.) should be studied. The study objective was to evaluate the productive response and quality of potato frying, var. Puzza, to the application of O-Ti and OF. The study was conducted at 3300masl from Dec. 2019 to Jun. 2020 in Quero, with a DBCA in divided plots and four replicas. The OF was the main plot (0 and 1.37 Mg ha-1) and the Org-Ti the subplot (0, 50, 100, 150, 200 and 250 mL 200 L-1). It was sown at 1.2x0.3m, two tuberseeds per stand and fertilized according to the soil analysis. At harvest, the tubers were categorized and samples were taken for nutrient and dry matter analysis and frying tests. The average productivity was 49.4 Mg ha-1; Org-Ti and OF did not affect this total (p > 0.10). No productive benefits of Org-Ti were observed, but a negative interaction with OF in large category tubers (p = 0.07) was evidenced. However, OF increased the thick category tubers by 1.2 Mg ha-1 (1.7%, p = 0.09), very Thick by 2.7 Mg ha-1 (4.7%, p <0.01); and reduced the small category by 2.2 Mg ha-1 (4.0%, p <0.01). Neither the Org-Ti nor the OF affected the nutritional content, dry matter and frying quality (p > 0.10). The Org-Ti did not improve potato productivity or quality but the OF did improve the volume of commercial potatoes (thick and very thick), whose price is higher than the small category, resulting a potential to improve the farmer's economy. Keywords: Organic Fertilizer, Frying Quality, Stimulation, Productivity, Organic Titanium.