Cultivo org?nico de tomate em vasoponia e ambiente protegido com manejo da irriga??o por acionador autom?tico

• Autor(a) principal: Gomes, Daniela Pinto
• Data de Publicação: 2016
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRRJ
• Texto Completo: https://tede.ufrrj.br/jspui/handle/jspui/1261
• topic: castor bean cake; wood ash; deficit irrigation; automatic device for irrigation (ADI); Solanum lycopersicum L; torta de mamona; cinza de madeira; d?ficit h?drico; acionador autom?tico para irriga??o (AAI); Solanum lycopersicum L.; Agronomia

This work entitled "Organic farming tomatoes in potponics and greenhouse with irrigation management by controller automatic" aimed to provide information to serve as a recommendation for a new tomato cultivation system potted and greenhouse with respect to inputs water and fertilizer, to ensure a sustainable production, mainly based on the use of residu?rios materials as a source of nutrients and automatic irrigation low cost. The specific objectives of this study were to assess: (a) the effect of different doses of wood ash and castor bean cake in the growth and productivity of tomato culture; and (b) the effect of different irrigation levels on growth and productivity of the tomato crop. Three experiments were conducted from 2013 to 2015 using a randomized block. In 2013, we evaluated the effect of five crecentes doses of wood ash and castor bean cake (160 g of ash and 90 g of castor bean cake per plant, 195 g of ash and 120 g of castor bean cake per plant, 230 g of ash and 140 g of castor bean cake per plant; 265 g of ash and 160 g of castor bean cake per plant, and 300 g of ash and 180 g of castor bean cake per plant) productivity of tomato cultivation. In 2014, in a factorial scheme (3 x 2), evaluated the effect of three wood ash levels (40, 80 and 120 g per plant) and two castor bean cake doses (140 and 280 g per plant) growth and productivity of the tomato crop. In 2015 we evaluated the effect of four irrigation levels (135, 165, 191 and 213 mm) on the growth and productivity of the tomato crop. The results in 2013 showed that the ash doses tested and castor bean cake did not influence the marketable productivity of tomato (1.24 to 1.59 kg per plant (24.8 to 31.8 t ha-1)). In 2014 most of the growth variables were positively influenced by the increase in wood ash and castor bean cake doses. Most marketable yield was obtained with the dose of 280 g of castor bean cake (1.99 kg per plant (39.8 t ha-1)), not significantly influenced by the ash doses. In 2015 most of the growth variables and marketable productivity were negatively with decreasing water depth. The level of 213 mm was responsible for greater marketable productivity (4.04 kg per plant (80.8 t ha-1)).