Evaluating the Effect of Cover Materials on Greenhouse Microclimates and Thermal Performance

Kim, Hyung-Kweon; Lee, Siyoung; Kwon, Jae-Hoon; Kim, Yong-Hyeon

doi:10.3390/agronomy12010143

Cited by 12 publications

(6 citation statements)

References 32 publications

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“…6), since the T a was higher under screen (Fig. 5A), as has been observed in other studies Kim et al, 2022). This anti-intuitive situation denoted that shaded trees were better paired with the environmental conditions they were in, which also led to lower T c -T a values for stressed trees compared with the stressed open-field trees (Fig.…”

Section: Discussionsupporting

confidence: 77%

Precision irrigation in citrus with different water qualities

García¹

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Citrus latifolia is increasingly being cultivated in Mediterranean areas, where the need for precise irrigation implies a sound knowledge of the crop's water requirements, which is carried out by monitoring the tree water status in the plant-soil-atmosphere system. Two year-old lime trees (Citrus latifolia Tan. cv. Bearss) were cultivated in 45 L weighing pot-lysimeters filled with a clay-loam soil and equipped with soil water sensors for recording the real-time soil water status. Irrigation, drainage, pot weight, and agro-meteorological variables were also recorded in real-time. Plant water relations -stem (Ψ stem ) and leaf (Ψ leaf ) water potentials, and leaf gas exchange -were periodically measured throughout the experiment. The automated irrigation protocol based on the volumetric soil water content was set to prevent tree water stress (with mean seasonal values of Ψ stem above -0.8 MPa and 7 μmol m − 2 s − 1 and 80 mmol m − 2 s − 1 , for net phtosynthesis and stomatal conductance, respectively). From the soil water pot balance, the computed fortnightly ET mean values throughout the growing season varied from 0.25 to 2.56 L plant − 1 day − 1 in winter and summer months, respectively. Maximum ET values occurred in July when evaporative demand was highest and lime fruits were in their most active growing phase. For day length, lime tree biomass changes were negligible, and the pot tree weight variations served for ET water balance validation (r 2 =0.92***). The contribution of this work is that it establishes a scalable weighing lysimeter prototype for determining the ET of lime trees grown in Mediterranean semi-arid conditions, using real-time soil water balance monitoring managed by an irrigation automation protocol. This approach could be replicated for precise ET measurements in other crops.

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Section: Discussionsupporting

confidence: 77%

Precision irrigation in citrus with different water qualities

García¹

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“…In the polyhouse, the covering material adversely affected microclimates such as temperature and humidity. A transparent polyhouse surface allows solar energy to enter during the daytime to raise its temperature (Kim et al 2022).…”

Section: Resultsmentioning

confidence: 99%

Greenhouse-temperature induced manure driven low carbon footprint in aquaculture mesocosm

et al. 2022

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In an aquaculture system, estimates were made of soil organic carbon content, carbon burial rate, soil structure and algal productivity with the intention of examining the synergistic effects of both greenhouse gas (GHG) induced temperature and manure-driven carbon reduction potentials in sediments that depend on productivity as well as tilapia spawning responses under greenhouse mimicking conditions during winter. Different manure treatments such as cattle manure and saw dust (T1); poultry droppings and saw dust (T2); vermi-compost and saw dust (T3); mixture of cattle manure, poultry droppings, vermi-compost and saw dust (T4); iso-carbonic states maintained with vermi-compost (T5); and with poultry droppings (T6) were applied three times (frequency of application) in the tank during the course of investigation. Different parameters like soil organic carbon, carbon burial rate, algal productivity and water quality were examined in aquaculture system. GHG effect impacted on the enhanced carbon reduction potential (44.36-62.36%) which was directly related with soil organic carbon (38.16-56.40 mg C/g) dependent carbon burial rate (0.0033-0.0118 g/cm 2 per 100 days). Average carbon burial rates for different manure treatments at GHG impacted temperature (0.0071 g/cm 2 per 100 days) was as high as 27.90% than at ambient air temperature (0.0054 g/cm 2 per 100 days). Residual carbon or sink in soils has been increased by 8.49 to 43.11% in different treatments or 23%, on an average attributed to almost 6 °C rise in GHG mediated atmospheric temperature. The low carbon footprint potential in different treatments was conspicuous inside the polyhouse (maximum 62.36%) due to greenhouse driven temperature compared. As a positive impact of the study, breeding of tilapia occurred where in T3 100% survival occurred in close polyhouse and also exhibited maximum carbon burial rate. In this study it has been observed that one degree rise in atmospheric temperature resulted in a ~ 4% rise in residual carbon in the experimental tank. However, future work can be conducted on other different treatments and large scale application. Highlights• Raised temperature impacted enhanced decomposition of manure.• Synergistic effects of temperature and GHG increase the primary productivity.• Simulated mesocosm induced the spawning of fish tilapia during winter. • Carbon burial rates at GHG impacted treatments were 27.90% higher.• Carbon reduction potential of soil was enhanced by about 23% due to GHG effect.

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“…The results suggest that compartments with diffused or transparent glass have greater water or light consumption efficiency than those with PC. Hyung-Kweon Kim et al (Kim et al 2022) studied and investigated the microclimate and thermal environment within single-span greenhouses coated with a single layer of plastic film, PC, and glass. The PC-covered greenhouse proved to be the best option for controlling the evening heating impact during the cold season, according to the findings of the trial.…”

Section: Environmental Factors Influencing Greenhouse Cultivationmentioning

confidence: 99%

A review study on the design and control of optimised greenhouse environments

Chimankare,

Das,

Kaur

et al. 2023

J. Trop. Ecol.

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Greenhouses are inflated structures with transparent covering that are used to grow crops under controlled climatic conditions. Crops are protected from extreme climate-related events by being enclosed. Furthermore, the greenhouse design ratio impacts the temperature and humidity distribution profile uniformity as well as the greenhouse. As a result, by effectively designing the greenhouse structure, building materials, dimensions, and shapes, the cost of cooling management strategies can be reduced. Structures with changed arch shapes showed to be more effective at reducing greenhouse cooling demands in hot areas. To demonstrate the tropical region’s inherent capabilities for generating a proper atmosphere for plant development, the optimal temperature, humidity, light, and PH for greenhouse production of crops were supplied. Greenhouse cooling systems are dominated by local environmental characteristics that have an immediate impact on their indoor climatic conditions. Photovoltaic systems in greenhouses have proven technological capacity in real-world settings in this area. This could increase the energy efficiency of some agrivoltaic greenhouse design options.

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Evaluating the Effect of Cover Materials on Greenhouse Microclimates and Thermal Performance

Cited by 12 publications

References 32 publications

Precision irrigation in citrus with different water qualities

Precision irrigation in citrus with different water qualities

Greenhouse-temperature induced manure driven low carbon footprint in aquaculture mesocosm

A review study on the design and control of optimised greenhouse environments

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