Ciencias Agropecuarias
Permanent URI for this communityhttp://repositorio.uta.edu.ec/handle/123456789/870
Browse
7 results
Search Results
Item Evaluación de la eficiencia de tres métodos de riego en el cultivo de mora (Rubus glaucus)(2025-02) Perez Abril Christopher David; Valle Velastegui Edgar LucianoThe influence of drip, micro-sprinkler, and flood irrigation methods on the productivity and fruit quality of Castilla blackberry (Rubus glaucus) was evaluated under controlled conditions to determine their water efficiency and economic feasibility. A completely randomized block design was used with three treatments and two replications, analyzing variables such as uniformity and amount of water applied, installation costs, total fruit weight, number of fruits per plant, Brix degrees, polar and equatorial fruit diameters, plant height, and stem diameter. The results showed that micro-sprinkler irrigation exhibited the highest water efficiency, with a uniformity coefficient of 90.7%, achieving the highest total fruit weight of 90.09 g/plant and higher Brix values. Drip irrigation also showed favorable performance, with a uniformity coefficient of 95.5%, reaching a total fruit weight of 87.15 g/plant and providing an efficient alternative in water-limited scenarios. In contrast, flood irrigation had the lowest uniformity, with a coefficient of 56.7%, and the lowest total fruit weight of 87.40 g/plant, although its installation costs were significantly lower, with a total value of $171.25, compared to $281.25 and $258.25 for the drip and micro-sprinkler systems, respectively. These findings highlight the need to consider water efficiency and implementation costs when selecting an irrigation method, as an appropriate choice can optimize water resource use and improve the sustainability and productivity of Castilla blackberry cultivation, especially in agricultural conditions that require a balance between technical efficiency and economic viability.Item Evaluación de dosis de hidrogel en el cultivo de rábano (Raphanus sativus) para prolongar los periodos de riego(2025-02) Balseca Paredes Henry Steven; Velástegui Espin Giovanny PatricioEl presente estudio analizó los efectos de la implementación de diferentes dosis hidrogel (0 g; 1 g; 2 g y 3 g), con diferentes frecuencias de riegos (8 días, 12 días y 16 días) en el cultivo de rábano Raphanus sativus. Con el objetivo de prolongar las frecuencias de riego. El proyecto, realizado en la Granja Experimental Docente “Querochaca”, empleó un diseño de bloques completamente al azar con tres repeticiones y análisis factorial. Al finalizar pudimos obtener como resultado que la dosis D3F1 (3g de hidrogel con frecuencias de riego cada 8 días) logró optimizar la retención de humedad, reduciendo las frecuencias de riego sin llegar a comprometer el rendimiento del cultivo a niveles críticos. Se observó un incremento en la capacidad de retención de agua en el suelo y una moderada tolerancia del cultivo al estrés hídrico. El cálculo de costos demostró en el tratamiento D3F1 la viabilidad económica del uso de hidrogel en los cultivos similares al rábano, destacando su potencial para mejorar la sostenibilidad hídrica en condiciones adversas.Item Evaluación de tres distancias de plantación de lechuga (Lactuca sativa L.) con aplicación de riego por goteo(2023-09) Pacari Malisa, María Emilia; Gutiérrez Albán, Alberto CristóbalThe present study on the determination of the production of lettuce (Lactuca sativa L. ) with different planting distances through the application of drip irrigation, was carried out in the parish Juan Benigno Vela located in the South West of Ambato canton, province of Tungurahua, its geographical coordinates 01° 19' 41.97" South latitude and 78° 43' 04.24" W longitude, with the purpose of determining the adequate spacing to obtain a better yield in production, the distances used were 0,30, 0,40 and 0,50 m between rows and 0,3 m between plants. A randomized block experimental design with three treatments and five replications was used. To obtain the results of the cabbage weight and diameter variables, the data were analyzed using the Tukey test at 5%. The data of the variables obtained were fundamental elements for obtaining the statistical analysis, with which it was possible to conclude that the treatment that obtained the best results is H2 with a planting distance of 0.3m*0.4m, reaching a weight of 747.07 g and a yield of 49.939 kg/ha, As for treatments H1 and H3, the results were inferior to those of treatment H2, in terms of water volume, treatment H2 provided 1.56 mm/day during the crop cycle, while treatment H1 provided 2.12 mm/day and treatment H3 1.18 mm/day, thus inferring that treatment H2 provided the necessary volume of water until the commercial maturity stage. Finally, with regard to the benefit-cost ratio, the treatment that gives us the highest profit in relation to ha is the H2 treatment with $2.06 profit, while the H3 treatment obtained $1.59 and the H1 treatment resulted in $1.49 profit, being these two treatments profitable, but with lower profitItem Evaluación del comportamiento productivo de Rábano (Raphanus sativus L.) con aplicación de riego por goteo en el Cantón Mocha(2023-09) Jiménez Carrillo, Erik Alexander; Gutiérrez Albán, Alberto CristóbalThis research was conducted to evaluate the productive behavior of radish (Raphanus sativus L.) with the application of drip irrigation, this research was established in the canton Mocha Yanahurco hamlet, within the research of radish crop was established three treatments, with planting densities of (0.05 x 0.20), (0.10 x 0.20) and (0.15 x 0.20) m between plant and row respectively. A completely randomized design was used for each treatment. The variables studied were plant height, root diameter (radish), root weight (radish) and yield. The 5% Tukey test was used to analyze the data obtained for the variables. During the statistical analysis we were able to observe that for plant height we obtained values ranging from 12.47 to 19.55 cm, for root diameter the values ranged from 3.48 to 3.94 cm, for weight the values were higher than 27.87g to 38.73g and for yield we were able to observe values ranging from 6000 to 23000 kg/ha. Within the best planting spacing we can consider that T1 with 0.05 x 0.20 m between plant and row was the one with the best results, being this distance the adequate one for radish cultivation. In terms of production, T1 stood out as the best treatment with an average of 3313.33 g/m², while T3 was below with 863.33 g/m², being the treatment with the lowest production per square meter. The treatment that had the best results in all the variables studied was T1, establishing itself as the best treatment; however, T1 was the one that received the most water at 120 L/m².Item Determinación de la eficiencia del riego casero por goteo en la producción de acelga (Beta vulgaris var. cicla) en agricultura urbana(2023-03) Mora Córdova, Christian Mauricio; Santana Mayorga, Rita CumandáThe present research work focused on the application of home drip irrigationtechniques through cord and pipe for the production of chard considered a vegetableof great importance. The irrigation methods are based on the application of water to the plant, for whichthere are different ways, in this investigation recycled plastic bottles were used, which served as containers for the plants. In this research, plastic bottles from recycling were used, which served as pots andalso as water containers for the project. The substrate that was used in the pots wasina proportion of 15% guinea pig manure, 15% cattle manure, 10%rice husks and60%soil from the area. 0.5 liter bottles were used as water containers according toeachofthe treatments, in which one and two bottles were used respectively. Regarding fertilization, it was carried out in an edaphic way in a relationshipof 5grams per plant using 8-20-20 to improve the soil structure, organic matter of animal origin was incorporated into the substrate. In each of the water containers, a cord or wick was placed for the M1R1 andM1R2treatment and for the M2R1 and M2R2 treatment, a plastic tube was placedasacatheter, regulated by a clamp to produce the dripping effect. The daily consumption of water by the plant and evaporation was replaced everydaywith the purpose at the end of the test to determine the efficiency of the methodused, the same one that was better in the treatment M2R2 irrigation by plastic tube withabottle with a value of 22.8% efficiency.Item Determinación de la producción en diferentes densidades de plantación de brócoli (Brassica oleracea var. Avenger) con aplicación de riego por goteo(2023-03) Villacis Yacelga, Kevin Geovanny; Gutiérrez Albán, Alberto CristóbalThe present study on the production of broccoli (Brassica oleracea var. Avenger) based on different planting densities through the application of drip irrigation, was carried out in the Izamba canton belonging to the province of Tungurahua, with the purpose of determining the best production yield of the densities used, which were 0.30, 0.40 and 0.50 m between plant and row. An experimental design with completely randomized blocks with three treatments and their corresponding three replications was used. The data obtained were analyzed using Tukey's test at 5%, where the following results were obtained for the following variables: plant height, diameter of the boll (30, 60 days and harvest), weight of the boll and yield. The data of the variables recorded were the fundamental key to perform a statistical analysis, where it was possible to conclude that the treatment that resulted with a considerable height during the harvest process is A2 with a mean of 35.03 cm, it is worth mentioning that the diameter of the pellet was not formed at 30 days so, at 60 days and in the harvest process the best was A3 with means of 2.89 and 22.76 cm respectively. However, in the weight of the pellet, the A3 treatment has a mean of 1399 g and the A2 with 4058.83g. Finally, regarding the production yield the best treatment was A2 with 4058.83 g/m2, where the water consumption per square meter was 169.38 L/m2, while the 169.38 L/m2, while the A3 treatment had a production of 3469.53 g/m2 and a water consumption 107.6 L/m2.Item Determinación de la eficiencia de la técnica de riego solar en la producción de lechuga (Lactuca sativa) en agricultura urbana(2021-09) Cordero Arévalo, María De Los Ángeles; Santana Mayorga, Rita CumandáThe present research refers to the implementation of an irrigation technique known as Kondenskompressor or solar drip irrigation for one of the most produced vegetable crops in the area of urban agriculture: Lettuce (Lactuca sativa). Which is based on the evaporation of water placed in plastic bottles (PET) recycling product as bases covered by a hood of the same material, which through the incidence of solar energy inside causes a greenhouse effect, very similar to the operation of the solar distillers in which the air is heated and the water evaporates condensing in the bell to form drops each time large which causes precipitation on its walls. In this trial, two study factors were evaluated: the number of bottles B1 (one bottle), B2 (two bottles), B3 (three bottles) per pot and volume of water D1(100 cc), D2 (200 cc), D3(300cc) resulting in nine treatments combining both factors. Although there were no statistical differences between treatments, one of the best results was obtained from the B2D1 treatment, but still did not provide enough water to obtain the expected results in the crop, so we determined that it is not efficient for lettuce cultivation due to the high demand for water from the crop and the climate (rain and cloudy sky) of the sector in which the test was conducted, they no longer allowed its full development due to lack of solar energy.