Efficiency of carbon dioxide enrichment in an unventilated greenhouse

Kuroyanagi, Takeshi; Yasuba, Ken‐ichiro; Higashide, Tadahisa; Iwasaki, Yasunaga; Takaichi, Masuyuki

doi:10.1016/j.biosystemseng.2014.01.007

Cited by 41 publications

(12 citation statements)

References 23 publications

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“…Recently, many largescale greenhouses have been built and installed with CO 2 application systems in Japan. Effects and efficiencies of CO 2 application in those greenhouses have been reported (Kuroyanagi et al, 2014;Takahashi et al, 2012). Moreover, those large greenhouses may also have a fogging system for humidification and cooling by vaporization heat.…”

Section: Introductionmentioning

confidence: 99%

Decreasing or Non-decreasing Allocation of Dry Matter to Fruit in Japanese Tomato Cultivars in Spite of the Increase in Total Dry Matter of Plants by CO2 Elevation and Fogging

et al. 2015

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To investigate the mechanism of yield increase by elevated carbon dioxide (CO 2 ) and fogging in Japanese tomato cultivars (Solanum lycopersicum), total above-ground dry matter (TDM), fraction of dry matter distribution to fruit (FDF), and photosynthetic characteristics were measured in 3 Japanese cultivars grown in elevated CO 2 with fogging and ambient CO 2 without fogging. Fresh fruit yield and TDM were improved by the elevated CO 2 and fogging in the 3 Japanese cultivars. Light use efficiency (LUE) was also increased by the elevated CO 2 and fogging. No significant decrease in FDF was observed by the elevated CO 2 and fogging in 2 Japanese cultivars, 'Asabiyori 10' and 'Junkei Aichi Fast'. Thus, the increase in TDM by higher LUE contributed directly to the yield increase in these 2 cultivars. However, FDF in 'Momotaro York' was decreased significantly by the elevated CO 2 and fogging. Thereby, the yield increase by the elevated CO 2 and fogging was diminished in 'Momotaro York' in spite of the increase in TDM. The number of trusses having immature fruit in 'Momotaro York' under elevated CO 2 and fogging was significantly higher than those of the others, although no increase in the number of trusses having immature fruit was observed in the other 2 cultivars. Although vegetative growth characteristics such as leaf area, LAI, and fresh and dry weights of leaves and stem were increased by the elevated CO 2 and fogging, no negative effects such as a change in lightextinction coefficient and a decrease in maximum photosynthetic rate were observed. The elevated CO 2 and fogging increased the number of harvested fruit but decreased weight per fruit, namely, fruit size, in the 3 cultivars.

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Section: Introductionmentioning

confidence: 99%

Decreasing or Non-decreasing Allocation of Dry Matter to Fruit in Japanese Tomato Cultivars in Spite of the Increase in Total Dry Matter of Plants by CO2 Elevation and Fogging

et al. 2015

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“…This method is known as the decay rate method because it measures the decay rate of a tracer gas concentration from an initial level. This method has been used by Nederhoff and Vegter (1994), Fernandez and Bailey (1992), Baptista et al (1999), Muñoz et al (1999), and Kuroyanagi et al (2014). The tracer gas was injected and uniformly distributed in the greenhouse until a specific pre-determined concentration was reached.…”

Section: Tracer Gas Techniquementioning

confidence: 99%

The Essential Factor of Ventilation Rate in Prediction of Photosynthetic Rate Using the CO2 Balance Method

Tusi

Shimazu

2020

RAS

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Monitoring photosynthesis is a fundamental process to improve the yield and quality of plants in a greenhouse. The CO2 balance method is often employed to predict the photosynthetic rate of plants. We reviewed the essential parameters for predicting photosynthetic rates of plants canopy in greenhouses using the CO2 balance method. Even in a naturally ventilated greenhouse, ventilation rate is an essential parameter for the CO2 balance method, but it must be measured in real time as it fluctuates with weather conditions. We studied three types of ventilation rates (the tracer gas, heat balance, and water vapor balance methods). Comparing the measuring techniques of ventilation rate provided us an understanding of the strengths and weaknesses of each method. This knowledge can guide us to choosing the best method based on accuracy, device usage, practicality, and the installation budget. Most researchers have measured and controlled CO2 concentrations in a greenhouse using an infrared gas analyzer and predicted the ventilation rates using the tracer gas method. This method is suitable for the measurement of low and closed ventilation. The estimated ventilation rate by the heat balance method is recommended for large ventilation openings. The water vapor balance method is sufficient for measuring the ventilation rate when there is a large quantity of water vapor due to plant transpiration. The reliability of this method depends on the accuracy of short-term transpiration measurements. Improved water vapor balance techniques can benefit various greenhouse applications with different ventilator configurations, owing to the flexibility and ease of use compared to those of other methods.

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“…As a result, many studies have been conducted to find appropriate CO 2 concentration levels for various crops grown in greenhouses [7]. However, some portion of the CO 2 enriched in a greenhouse is released into the atmosphere through ventilation [8]. Therefore, when using CO 2 for crop cultivation, two considerations are needed to enable sustainable cultivation: no use of fossil fuels and no release of CO 2 into the atmosphere.…”

Section: Introductionmentioning

confidence: 99%

CO2 Utilization Strategy for Sustainable Cultivation of Mushrooms and Lettuces

Jung

Son

2021

Sustainability

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Mushroom cultivation generates a large amount of CO2 that can be used sustainably. The objective of this study was to use actual cultivation and simulation to find a sustainable cultivation method that uses the CO2 generated by king oyster mushrooms for the production of romaine lettuces. A closed cultivation system consisting of one mushroom chamber, three lettuce chambers, and one gas-mixing chamber was used. Two cultivation conditions, non-continuous and continuous, were analyzed. The non-continuous system cultivated 15 lettuces and 12 mushroom bottles at a time every 25 and 16 days, respectively. The continuous system cultivated three lettuces and mushroom bottles every five and four days, respectively, so that each chamber contained mushrooms or lettuces at each growth stage. The CO2 concentrations in the lettuce and mushroom chambers were stably maintained above 1000 μmol∙mol−1 and below 2000 μmol∙mol−1 in the continuous system. Mathematical models were developed to analyze the CO2 concentration in each chamber. The shoot dry weight of lettuces grown in the mixed cultivation were 48.0%, 21.9%, 19.7%, and 18.1% at 10, 15, 20, and 25 days after transplanting, respectively, higher than those in the lettuce-only cultivation. Compared to mushroom-only cultivation, mixed cultivation reduced the accumulated CO2 emissions into the air by 80.6%. Thus, using CO2 from mushrooms to cultivate lettuce in a continuous cultivation system could reduce CO2 emissions into the air and enable mixed cultivation of mushrooms and lettuces, achieving sustainable agriculture.

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Efficiency of carbon dioxide enrichment in an unventilated greenhouse

Cited by 41 publications

References 23 publications

Decreasing or Non-decreasing Allocation of Dry Matter to Fruit in Japanese Tomato Cultivars in Spite of the Increase in Total Dry Matter of Plants by CO<sub>2</sub> Elevation and Fogging

Decreasing or Non-decreasing Allocation of Dry Matter to Fruit in Japanese Tomato Cultivars in Spite of the Increase in Total Dry Matter of Plants by CO<sub>2</sub> Elevation and Fogging

The Essential Factor of Ventilation Rate in Prediction of Photosynthetic Rate Using the CO<sub>2</sub> Balance Method

CO2 Utilization Strategy for Sustainable Cultivation of Mushrooms and Lettuces

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