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Research article - Peer-reviewed, 2021

Evaluation of lettuce growth, yield, and economic viability grown vertically on unutilized building wall in Dhaka City

Islam, Rinita; Solaiman, Abul Hasnat M.; Kabir, Md. Humayun; Arefin, S. M. Anamul; Azad, Md Obyedul Kalam; Siddiqee, Mahbubul H.; Alsanius, Beatrix; Naznin, Most Tahera

Abstract

Production of safe food in the densely populated areas of the developing countries is the most challenging issue due to the speedy urbanization, fragile food transportation facilities, and reduced farmlands. Given this background, a study was conducted to evaluate the agronomic properties and economic viability of lettuce grown vertically in the wall of building in Dhaka city, Bangladesh. Two lettuce cultivars (V1: Green wave and V2: New red fire) and three organic growing media (P1: 40% soil + 40% vermicompost + 20% coir; P2: 50% soil + 50% vermicompost; P3: 20% soil + 40% vermicompost + 40% spent mushroom compost) along with control (P0:100% soil) were used. The results revealed that plant height, leaf area, fresh weight, dry weight, and total yield of leaf lettuce were significantly increased when the green-leafed cultivar (VI) was grown in the P1 compared to all other treatments, but V2 got maximum sensory attribute scores when grown in the P1. Lettuce leaves grown in the formulated growing media (P1, P2, and P3) had higher microbial infestation whereas, a lower content occurred in the P0. The higher economic return was observed in V1P1. These results provided baseline information for further study on urban commercial vertical farming on the building walls. These demonstrate the agronomic and economic potential for vertical farming in densely populated areas but emphasize the need for optimized food safety strategies.

Keywords

developing country; economic viability; food production; lettuce; microorganisms; sustainable green city

Published in

Frontiers in Sustainable Cities
2021, volume: 3, article number: 582431

Authors' information

Islam, Rinita
Sher-e-Bangla Agricultural University
Solaiman, Abul Hasnat M.
Sher-e-Bangla Agricultural University
Kabir, Md. Humayun
Sher-e-Bangla Agricultural University
Arefin, S. M. Anamul
Sher E Bangla Agr Univ
Azad, Md Obyedul Kalam
Kangwon National University
Siddiqee, Mahbubul H.
BRAC University
Swedish University of Agricultural Sciences, Department of Biosystems and Technology
Naznin, Most Tahera
Swedish University of Agricultural Sciences, Department of Biosystems and Technology

UKÄ Subject classification

Horticulture
Pathobiology
Food Science

Publication Identifiers

DOI: https://doi.org/10.3389/frsc.2021.582431

URI (permanent link to this page)

https://res.slu.se/id/publ/111657