Hydrodynamic changes of the soil-cactus interface, effective actual evapotranspiration and its water efficiency under irrigation
ABSTRACT The knowledge on soil water dynamics is the basis of crop water management. The soil water balance (SWB) method is used for this purpose. However, its application in cactus may lead to misinterpretation in water efficiency analysis, since it does not consider the amount of water retained in...
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Universidade Federal de Campina Grande
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| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
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| author | José E. F. de Morais Thieres G. F. da Silva Maria G. de Queiroz Gherman G. L. de Araújo Magna S. B. Moura George do N. Araújo Júnior |
| author_facet | José E. F. de Morais Thieres G. F. da Silva Maria G. de Queiroz Gherman G. L. de Araújo Magna S. B. Moura George do N. Araújo Júnior |
| author_sort | José E. F. de Morais |
| collection | DOAJ |
| description | ABSTRACT The knowledge on soil water dynamics is the basis of crop water management. The soil water balance (SWB) method is used for this purpose. However, its application in cactus may lead to misinterpretation in water efficiency analysis, since it does not consider the amount of water retained in the plant (WRP). This study aimed to evaluate SWB applicability, hydrodynamic changes and water efficiency of forage cactus clones under irrigation. The clones ‘Orelha de Elefante Mexicana’ (OEM), ‘IPA Sertânia’ (IPA) and ‘Miúda’ (MIU) were submitted to irrigation depths (2.5, 5.0 and 7.5 mm) and frequencies (7, 14 and 28 days), in Serra Talhada, PE, Brazil, between March 2012 and August 2013. The SWB was applied, by adding the WRP in the estimate of the effective actual evapotranspiration (ETrEF). The water efficiency indicators were calculated. The actual evapotranspiration on SWB (ETrSWB) overestimated ETrEF and, like other SWB components, it was affected by the factors irrigation depth, frequency and clone. The clone OEM is the most efficient, due to the use of the WRP, while MIU leads to highest gross economic returns for sale of cladodes as seed. As conclusion, the application of the soil water balance method in areas cultivated with cactus species must be accompanied by WRP. |
| format | Article |
| id | doaj-art-a18751f6ddf94227b51eb5da46ae3e65 |
| institution | OA Journals |
| issn | 1807-1929 |
| language | English |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-a18751f6ddf94227b51eb5da46ae3e652025-08-20T02:25:51ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-192921427327810.1590/1807-1929/agriambi.v21n4p273-278S1415-43662017000400273Hydrodynamic changes of the soil-cactus interface, effective actual evapotranspiration and its water efficiency under irrigationJosé E. F. de MoraisThieres G. F. da SilvaMaria G. de QueirozGherman G. L. de AraújoMagna S. B. MouraGeorge do N. Araújo JúniorABSTRACT The knowledge on soil water dynamics is the basis of crop water management. The soil water balance (SWB) method is used for this purpose. However, its application in cactus may lead to misinterpretation in water efficiency analysis, since it does not consider the amount of water retained in the plant (WRP). This study aimed to evaluate SWB applicability, hydrodynamic changes and water efficiency of forage cactus clones under irrigation. The clones ‘Orelha de Elefante Mexicana’ (OEM), ‘IPA Sertânia’ (IPA) and ‘Miúda’ (MIU) were submitted to irrigation depths (2.5, 5.0 and 7.5 mm) and frequencies (7, 14 and 28 days), in Serra Talhada, PE, Brazil, between March 2012 and August 2013. The SWB was applied, by adding the WRP in the estimate of the effective actual evapotranspiration (ETrEF). The water efficiency indicators were calculated. The actual evapotranspiration on SWB (ETrSWB) overestimated ETrEF and, like other SWB components, it was affected by the factors irrigation depth, frequency and clone. The clone OEM is the most efficient, due to the use of the WRP, while MIU leads to highest gross economic returns for sale of cladodes as seed. As conclusion, the application of the soil water balance method in areas cultivated with cactus species must be accompanied by WRP.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000400273&lng=en&tlng=enwater retained in the plantsoil water balancecactusmodelling |
| spellingShingle | José E. F. de Morais Thieres G. F. da Silva Maria G. de Queiroz Gherman G. L. de Araújo Magna S. B. Moura George do N. Araújo Júnior Hydrodynamic changes of the soil-cactus interface, effective actual evapotranspiration and its water efficiency under irrigation Revista Brasileira de Engenharia Agrícola e Ambiental water retained in the plant soil water balance cactus modelling |
| title | Hydrodynamic changes of the soil-cactus interface, effective actual evapotranspiration and its water efficiency under irrigation |
| title_full | Hydrodynamic changes of the soil-cactus interface, effective actual evapotranspiration and its water efficiency under irrigation |
| title_fullStr | Hydrodynamic changes of the soil-cactus interface, effective actual evapotranspiration and its water efficiency under irrigation |
| title_full_unstemmed | Hydrodynamic changes of the soil-cactus interface, effective actual evapotranspiration and its water efficiency under irrigation |
| title_short | Hydrodynamic changes of the soil-cactus interface, effective actual evapotranspiration and its water efficiency under irrigation |
| title_sort | hydrodynamic changes of the soil cactus interface effective actual evapotranspiration and its water efficiency under irrigation |
| topic | water retained in the plant soil water balance cactus modelling |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000400273&lng=en&tlng=en |
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