Control of Temperature, Humidity, and Co2 Concentration in Small-Sized Experimental Plant Factory

Ryu, Dong-Woo; Kang, Seung Won; Ngo, Viet Duc; Chung, Sun–Ok; Choi, Jong Myung; Park, S.U.; Kim, Sun-Ju

doi:10.17660/actahortic.2014.1037.59

Cited by 9 publications

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“…A plant factory with artificial lighting (PFAL) is a closed plant production system where electrical lighting is used for crop production and where the environmental parameters [temperature, humidity, and CO 2 concentration ([CO 2 ])] controlled automatically and precisely, so that plant growth in the factory is independent of the external environment (Kozai, 2013; Kozai & Niu, 2016; Miyagi et al., 2016; Tong et al., 2014). Plant factories with artificial lightinghave gained worldwide attention and may represent an important future direction of agriculture, as they have been reported to maximize yield and quality (Ryu et al., 2014). As we all know, although a plant factory increases the units of land area, the light energy cost is very high.…”

Section: Introductionmentioning

confidence: 99%

“…tory is independent of the external environment (Kozai, 2013;Kozai & Niu, 2016;Miyagi et al, 2016;Tong et al, 2014). Plant factories with artificial lightinghave gained worldwide attention and may represent an important future direction of agriculture, as they have been reported to maximize yield and quality (Ryu et al, 2014). As we all know, although a plant factory increases the units of land area, the light energy cost is very high.…”

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Carbon dioxide enrichment promoted the growth, yield, and light‐use efficiency of lettuce in a plant factory with artificial lighting

Chen

Mei

et al. 2021

Agronomy Journal

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Lettuce (Latuca sativa L.) is a commercially important crop and a good candidate for production in a plant factory with artificial lighting (PFAL). To explore the influence of CO 2 enrichment (eCO 2 ) on lettuce growth, light-use efficiency (LUE) and various aspects of the growth indicators were specifically assessed. Three CO 2 concentrations ([CO 2 ]): ambient CO 2 (as the control, approximately 400 μmol mol −1 ), approximately double the ambient (DA-CO 2 , 800 ± 50 μmol mol −1 ), and approximately quadruple the ambient (QA-CO 2 , 1600 ± 50 μmol mol −1 ) were applied for 30 d. The results indicated that plant height, stem diameter, number of leaves, root length, leaf width, and maximum leaf area were all positively related to [CO 2 ], which illustrated that growth was greater in the treatments with eCO 2 than under ambient CO 2 . The daily average assimilation rate (DAAR), the average dry weight growth rate (GRdw), and yield were also greater for plants grown under DA-CO 2 and QA-CO 2 than under ambient CO 2 (DAAR increased by 25.45% and 42.27%, GRdw increased by 28.76 and 37.55%, and yield increased by 33.65 and 44.16%, respectively). Lightuse efficiency increased by 28.51 and 41.12% for DA-CO 2 and QA-CO 2 compared with ambient CO 2 , respectively. We concluded that eCO 2 has the potential to enhance production as well as light utilization in PFAL. INTRODUCTIONA plant factory with artificial lighting (PFAL) is a closed plant production system where electrical lighting is used for crop production and where the environmental parameters [temperature, humidity, and CO 2 concentration ([CO 2 ])] controlled automatically and precisely, so that plant growth in the fac-Abbreviations: [CO 2 ], CO 2 concentration; Chl, chlorophyll; DA-CO 2 , approximately double the ambient CO 2 (800 ± 50 μmol•mol -1 ); DAAR, daily average assimilation rate; eCO 2 , CO 2 enrichment; GRdw, average dry weight growth rate; LUE, light-use efficiency; PFAL, plant factory with artificial lighting; QA-CO 2 , approximately quadruple the ambient CO 2 (1,600 ± 50 μmol•mol -1 ).This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Carbon dioxide enrichment promoted the growth, yield, and light‐use efficiency of lettuce in a plant factory with artificial lighting

Chen

Mei

et al. 2021

Agronomy Journal

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“…Normally, the environmental factors including temperature, humidity, light, and CO2 concentration are essential in the crop growth and quality via plant factory system. Proper temperature is needed depending on the type of crops in order to evaluate the germination and growth of the crops (Ryu et al, 2014). Maneejantra et al (2016) studied the cultivation of spinach in a plant factory which was highly influenced by the nutrient content, environmental conditions, and hydroponic system.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of Fertilizer Electrical Conductivity (EC) and Temperature Distribution via Vertical Farming System under Plant Factory

Sulaiman

Ahmad

Hassim

et al. 2021

Basrah J. Agric. Sci.

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A plant factory has been developed at Horticultural Research Centre, MARDI Serdang. The cultivation approach under the plant factory consists of nine units planting racks with each rack having seven tiers or levels that can cultivate up to 900 crops per rack. Each unit of planting racks has been installed with electrical conductivity (EC) and pH monitoring system. EC is a meaningful indicator of water quality, soil salinity and fertilizer concentration. In this study, the data for EC and temperature were taken for each level different locations (three points along the rack) to evaluate the fertilizer quality distribution. The objective of the study was to evaluate the effectiveness of EC and temperature distribution on the planting rack of vertical farming system under the plant factory. From the study, it was found that EC and temperature parameters were not significantly different at each level and the point location of the vertical farming system. EC and temperature parameters were significantly different with the time (week) and point location from week to week. The effect of the interaction between time (week) and level on EC and temperature parameters were not statistically different. Therefore, it can be concluded that the effect of EC and temperature distribution at different levels of the vertical farming system did not depend on the time.

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“…CO2 represents the raw material for photosynthesis and is involved in several physiological processes related to plant growth. Photosynthetic rate, plant dry weight, soluble sugar, and chlorophyll content, increase with an increase in CO2 concentration [42] . Plant structural characteristics, such as the shoot to root ratio, leaf thickness and stomatal density, can be modified at high CO2 levels [43] .…”

Section: Effect Of Environmental Factor On Lettuce Growth Development...mentioning

confidence: 95%

Comparative study on lettuce cultivation within Fieldlab Vertical Farming : Comparative study on the cultivation of lettuce in indoor farms of WUR, Delphy, Logiqs, Vertify and Philips Horticulture LED Solutions

Carpineti,

Bautista,

Garcia Sales

et al. 2024

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Vertify; 3 Logiqs; 4 Delphy; 5 Philips Horticulture LED Solutions ReferaatBinnen het project Fieldlab Vertical Farming is een vergelijkend onderzoek uitgevoerd naar de teelt van slasoort Caipira in de vertical farm faciliteiten van deelnemers Delphy Improvement Centre, Philips Horticulture LED Solutions, Vertify, Logiqs en WUR Glastuinbouw. De faciliteiten verschillen in omvang en technische opzet. Dezelfde inputs en instellingen werden gebruikt, b.v. de klimaatinstellingen. Bij het analyseren van het met sensoren verzamelde klimaatdata constateerden we dat de ingestelde klimaatomstandigheden bij de meeste bedrijven op celniveau werden bereikt, wat aangeeft dat de cellen presteerden zoals was ingesteld. Wanneer we echter kijken naar het klimaat gemeten rond het gewas, weken de klimaatomstandigheden af van de streefwaarden en waren ze significant verschillend tussen de partners. Dit was het resultaat van de locatie waar het klimaat werd gemeten, en de manier waarop het klimaat werd gestuurd, bijvoorbeeld door windsnelheid en vochtigheidscontrole. Slakroppen uit de cel met de lichtste kroppen hadden een 70% lager versgewicht vergeleken met de cel met de zwaarste kroppen. De gewichtsvermindering was onder meer te danken aan een 37% lagere DLI. De andere belangrijke factor die bijdroeg aan de verschillen in het verse kropgewicht was een verschil in transpiratie als gevolg van variatie in de klimaatrealisatie rondom het gewas.

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Control of Temperature, Humidity, and Co2 Concentration in Small-Sized Experimental Plant Factory

Cited by 9 publications

References 0 publications

Carbon dioxide enrichment promoted the growth, yield, and light‐use efficiency of lettuce in a plant factory with artificial lighting

Carbon dioxide enrichment promoted the growth, yield, and light‐use efficiency of lettuce in a plant factory with artificial lighting

Evaluation of Fertilizer Electrical Conductivity (EC) and Temperature Distribution via Vertical Farming System under Plant Factory

Comparative study on lettuce cultivation within Fieldlab Vertical Farming : Comparative study on the cultivation of lettuce in indoor farms of WUR, Delphy, Logiqs, Vertify and Philips Horticulture LED Solutions

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