Reference evapotranspiration estimation inside greenhouses
Because of the large area occupied by a class A pan, alternative methods have been sought to estimate reference evapotranspiration (Eto) inside greenhouses. The objective of this work was to compare ETo estimated by different methods inside and outside a greenhouse. A class A pan (CAPi), a reduced p...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Universidade de São Paulo
2003-01-01
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| Series: | Scientia Agricola |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000300027&tlng=en |
| _version_ | 1818719765573664768 |
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| author | Carolina Fernandes José Eduardo Corá Jairo Augusto Campos de Araújo |
| author_facet | Carolina Fernandes José Eduardo Corá Jairo Augusto Campos de Araújo |
| author_sort | Carolina Fernandes |
| collection | DOAJ |
| description | Because of the large area occupied by a class A pan, alternative methods have been sought to estimate reference evapotranspiration (Eto) inside greenhouses. The objective of this work was to compare ETo estimated by different methods inside and outside a greenhouse. A class A pan (CAPi), a reduced pan (RPi) and an atmometer (Ai) were installed inside a greenhouse, and another class A pan (CAPo) was installed outside. ETo estimates, obtained by CAPi, RPi, and Ai were 56%, 69% and 63% of those estimated by CAPo, respectively. A simple linear regression showed positive coefficients R = 0.94 for the RPi and the CAPi, R = 0.91 for the Ai and the CAPi, R = 0.70 for the CAPi and the CAPo, R = 0.66 for the RPi and the CAPo, and R = 0.62 for the Ai and the CAPo. ETo needs to be estimated inside greenhouses and it is possible to use reduced pans or atmometers to estimate the ETo inside the greenhouse. Equipment replacement would increase the available space inside the greenhouse. |
| first_indexed | 2024-12-17T20:12:09Z |
| format | Article |
| id | doaj.art-6b60c85f4232430286f09227eecc668c |
| institution | Directory Open Access Journal |
| issn | 1678-992X |
| language | English |
| last_indexed | 2024-12-17T20:12:09Z |
| publishDate | 2003-01-01 |
| publisher | Universidade de São Paulo |
| record_format | Article |
| series | Scientia Agricola |
| spelling | doaj.art-6b60c85f4232430286f09227eecc668c2022-12-21T21:34:13ZengUniversidade de São PauloScientia Agricola1678-992X2003-01-01603591594Reference evapotranspiration estimation inside greenhousesCarolina Fernandes0José Eduardo Corá1Jairo Augusto Campos de Araújo2UNESPUNESPUNESPBecause of the large area occupied by a class A pan, alternative methods have been sought to estimate reference evapotranspiration (Eto) inside greenhouses. The objective of this work was to compare ETo estimated by different methods inside and outside a greenhouse. A class A pan (CAPi), a reduced pan (RPi) and an atmometer (Ai) were installed inside a greenhouse, and another class A pan (CAPo) was installed outside. ETo estimates, obtained by CAPi, RPi, and Ai were 56%, 69% and 63% of those estimated by CAPo, respectively. A simple linear regression showed positive coefficients R = 0.94 for the RPi and the CAPi, R = 0.91 for the Ai and the CAPi, R = 0.70 for the CAPi and the CAPo, R = 0.66 for the RPi and the CAPo, and R = 0.62 for the Ai and the CAPo. ETo needs to be estimated inside greenhouses and it is possible to use reduced pans or atmometers to estimate the ETo inside the greenhouse. Equipment replacement would increase the available space inside the greenhouse.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000300027&tlng=enclass A panreduced panatmometer |
| spellingShingle | Carolina Fernandes José Eduardo Corá Jairo Augusto Campos de Araújo Reference evapotranspiration estimation inside greenhouses Scientia Agricola class A pan reduced pan atmometer |
| title | Reference evapotranspiration estimation inside greenhouses |
| title_full | Reference evapotranspiration estimation inside greenhouses |
| title_fullStr | Reference evapotranspiration estimation inside greenhouses |
| title_full_unstemmed | Reference evapotranspiration estimation inside greenhouses |
| title_short | Reference evapotranspiration estimation inside greenhouses |
| title_sort | reference evapotranspiration estimation inside greenhouses |
| topic | class A pan reduced pan atmometer |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000300027&tlng=en |
| work_keys_str_mv | AT carolinafernandes referenceevapotranspirationestimationinsidegreenhouses AT joseeduardocora referenceevapotranspirationestimationinsidegreenhouses AT jairoaugustocamposdearaujo referenceevapotranspirationestimationinsidegreenhouses |