EVALUATION OF DIFFERENT MODELS FOR VEGETABLES PRODUCTION ON ROOFTOP GARDEN

Abstract

Roof top garden is a practice for cultivation of crops on roof top on a building either in peri-urban or urban areas. The experiment was conducted at roof top of Mushroom laboratory, Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur during July 2016 to June 2017. The experiment was laid out in Completely Randomized Design (CRD) having single factors with three replications. Nine treatment of this experiment were T ii 1 = Plastic box 1, T = Plastic box 2, T 3 = Plastic box 3, T 4 = Plastic box 4, T 5 = Plastic box 5, T 6 2 = Plastic box 6, T = Plastic box 7, T 8 = Half drum, T = Sac/ Multilayer box and three roof top garden models viz., Model 1, Model 2, Model 3 included in the study. Each model consists of 22 type vegetables. Considering the 3 models, there were a narrow difference in term of vegetable yield and prices. In terms of vegetables yield during one year from a 100 sqft area, Model 2 produced the maximum yield (76 kg) followed by Model 1 (68.5 kg), while lowest by Model 3 (66.5 kg). The yield variation was very narrow due to maximum vegetables were same in among 3 model, while only 2-3 vegetables were differed. In terms of vegetable price, Model 2 obtained the maximum (2374 tk) followed by Model 1 (2278 tk), while minimum was from Model 3 (2116 tk).The main cause behind it was the number of vegetables was same (22) in all models. Just rearrangement the vegetables within the treatments and type of production system viz., single cropping, inter cropping and relay cropping. So, on a roof garden from a 100 sqft area, anybody can follow any model preferably Model 2 and Model 1, which vegetable price (2374 tk, 2278 tk, respectively) and yield (76 kg, 68.5 kg, respectively) were higher. This study was just 1-year result, so after another year trial it may be concluded which model is best in terms of yield and price.