Evaluación de métodos de aplicación de polyter en cultivo de fresa (fragaria vesca)

Abstract

This essay was carried out in the Technical University of Ambato, in the Agricultural Science Faculty by Querochaca, it’s located in the Cevallos canton its coordinates are latitude 1°22'08'', longitude 78°36'22" and it is found by the 2880 meters above sea level. This searching was made in order to assess the application of Polyter in the strawberry crop (Fragariavesca) to increase the volume of the root and get a better accumulation of nutrients in the fruit, to assess the most appropriated application method of Polyter in the absorption of nutrients, to establish the nutrients concentration curves, to establish the performance of the first floral bunch.The studied treatments were the following: T1 Hydrated Polyter, T2 Dry Polyter and T3 Witness. The analyzed variables in the studio were: placement plant, nutrients concentration curves, root volume, leaf area, the performance of the first floral bunch, Brix degrees and the hardness of the fruit. The highest performance at the first floral bunch was the T1 Hydrated Polyter treatment with 23,99 g, and the T2 Dry Polyter was the less value treatment with 18,08 g. The highest leaf area was obtained in the T3 Hydrated Polyter treatment with 220,90 cm2 in the flowering stage, here is where you see the highest growing up of plants, the Witness T3 treatment had a value of 167,32 cm2. The highest values in terms of mg of nutrients accumulated in the fruit collection stage were the T1 hydrated Polyter with 38,13 mg of Nitrogen, 5,84 mg of Phosphorus, 16,90 mg of Potassium, 12,51 mg of Calcium and 4,27 mg of Magnesium, the treatment with the less value was the T2 Dry Polyter with 28,70 mg of Nitrogen, 3,62 mg of Phosphorus, 15,15 mg of Potassium, 8,68 mg of Calcium and 2,89 mg of Magnesium, it is because of in this treatment the hydrogel was gradually hydrated with the nutrient solution provided in the fertigation.