Study on hydroponic system for lettuce and tomato production under controlled environment

Manjang, Lamin (2019) Study on hydroponic system for lettuce and tomato production under controlled environment. [Project Paper] (Submitted)

Text lp FK 2019 74.pdf Download (3MB)

Abstract

Hydroponics commonly incorporates crops farming deprived of chemical fertilizers and soil utilization, it decreases crop diseases, hazard of pest and utilized for yield creation in controlled cultivating structure. With regard to the existing hydroponic systems, the cultivator can only show essential parameters such as humidity, water level, nutrients and light intensity using smart monitoring devices of the NFT system. Here we designed a Nutrient Film Technique system with UPVC pipe, wood, net protection, pH meter, EC meter, media (perlite, clay pebbles and coco fiber), for growing tomato and lettuce in a close system environment, which includes determination of pipe size, flowrate, angle of pipe degree and pump size, to study the interaction of the nutrient mixing rate and the growing media and the need of suitable planting media for hydroponic system for holding the mixture of fertilizer content in the different media. We found the results of flowrate, Q to be 117.9 L/hr through a 3” (7.62 cm) UPVC pipe diameter and a 90 degree elbow joint with pump size/power of 0.193 watt. The weekly addition of supplement A&B for butterhead lettuce was 600 ml meaning 86 ml daily and for cherry tomato required 2100 ml meaning 300 ml per day of nutrient A&B which is sustainable. The pH and EC for butterhead lettuce were in a range of 5.5 - 6.5 and 0.8 - 2.0 mS/m while the pH and EC for cherry tomato ranges from 5.5 - 6.5 and 2.0 - 5.0 mS/m. The One-way ANOVA, Mean comparison and SPSS plant height variations between groups for butterhead lettuce and cherry tomato shows a significance of 0.004 (p<0.05) and 0.472 (p>0.05) respectively. Clay pebble media recorded the highest fruits yield and weight, its stem can withstand up to 173.6g, also, followed by perlite media and the least was recorded by the coco fiber media with lowest stem holding capacity fruits weight of 36.5g.

Item Type:	Project Paper
Faculty:	Faculty of Engineering
Depositing User:	Ms Siti Mariam Giman
Date Deposited:	17 Nov 2022 07:16
Last Modified:	17 Nov 2022 07:16
URI:	http://psaspb.upm.edu.my/id/eprint/541

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