Improved Strategy for Virtual Daily Light Integral with CO2 Supplementation in Greenhouses
Supplemental CO2 in greenhouses can reduce the lighting required to achieve a particular yield. Systems that can also control deployable shades are very desirable for light-sensitive crops such as lettuce, which is susceptible to leaf tipburn if exposed to excess light. Four lighting control systems...
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American Society for Horticultural Science (ASHS)
2025-04-01
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| Series: | HortTechnology |
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| Online Access: | https://journals.ashs.org/horttech/view/journals/horttech/35/3/article-p301.xml |
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| author | Kale Harbick |
| author_facet | Kale Harbick |
| author_sort | Kale Harbick |
| collection | DOAJ |
| description | Supplemental CO2 in greenhouses can reduce the lighting required to achieve a particular yield. Systems that can also control deployable shades are very desirable for light-sensitive crops such as lettuce, which is susceptible to leaf tipburn if exposed to excess light. Four lighting control systems are compared: 1) a rule-based light and shade controller baseline; 2) a trajectory-following light and shade controller; 3) a rule-based light, shading, and CO2 controller; and 4) a new trajectory-following light, shade, and CO2 controller that combines the strengths of controllers 2 and 3. The primary metric used for comparison is revenue less costs for CO2 and lighting. Differences in this metric indicate relative performance of one control system compared with another. Simulations using four different, contiguous US climates are performed, all indicating nearly twice as much improvement with the new controller over the baseline as using controller 2 or 3 alone. |
| format | Article |
| id | doaj-art-6f59eb4b330f45ce9620d9ea29803eee |
| institution | OA Journals |
| issn | 1943-7714 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | American Society for Horticultural Science (ASHS) |
| record_format | Article |
| series | HortTechnology |
| spelling | doaj-art-6f59eb4b330f45ce9620d9ea29803eee2025-08-20T02:19:45ZengAmerican Society for Horticultural Science (ASHS)HortTechnology1943-77142025-04-01353https://doi.org/10.21273/HORTTECH05605-25Improved Strategy for Virtual Daily Light Integral with CO2 Supplementation in GreenhousesKale Harbick0US Department of Agriculture–Agricultural Research Service, 2801 W. Bancroft Street, Mail Stop 604, Toledo, 43606 OH, USASupplemental CO2 in greenhouses can reduce the lighting required to achieve a particular yield. Systems that can also control deployable shades are very desirable for light-sensitive crops such as lettuce, which is susceptible to leaf tipburn if exposed to excess light. Four lighting control systems are compared: 1) a rule-based light and shade controller baseline; 2) a trajectory-following light and shade controller; 3) a rule-based light, shading, and CO2 controller; and 4) a new trajectory-following light, shade, and CO2 controller that combines the strengths of controllers 2 and 3. The primary metric used for comparison is revenue less costs for CO2 and lighting. Differences in this metric indicate relative performance of one control system compared with another. Simulations using four different, contiguous US climates are performed, all indicating nearly twice as much improvement with the new controller over the baseline as using controller 2 or 3 alone.https://journals.ashs.org/horttech/view/journals/horttech/35/3/article-p301.xmlco2 supplementationcontrolled environmentsdli controllighting controlgreenhouse lighting |
| spellingShingle | Kale Harbick Improved Strategy for Virtual Daily Light Integral with CO2 Supplementation in Greenhouses HortTechnology co2 supplementation controlled environments dli control lighting control greenhouse lighting |
| title | Improved Strategy for Virtual Daily Light Integral with CO2 Supplementation in Greenhouses |
| title_full | Improved Strategy for Virtual Daily Light Integral with CO2 Supplementation in Greenhouses |
| title_fullStr | Improved Strategy for Virtual Daily Light Integral with CO2 Supplementation in Greenhouses |
| title_full_unstemmed | Improved Strategy for Virtual Daily Light Integral with CO2 Supplementation in Greenhouses |
| title_short | Improved Strategy for Virtual Daily Light Integral with CO2 Supplementation in Greenhouses |
| title_sort | improved strategy for virtual daily light integral with co2 supplementation in greenhouses |
| topic | co2 supplementation controlled environments dli control lighting control greenhouse lighting |
| url | https://journals.ashs.org/horttech/view/journals/horttech/35/3/article-p301.xml |
| work_keys_str_mv | AT kaleharbick improvedstrategyforvirtualdailylightintegralwithco2supplementationingreenhouses |