Crop coefficient estimated by degree-days for ‘Marandu’ palisadegrass and mixed forage
Considering profitability in pasture-based systems, investigating parameters affecting crop coefficients for irrigation management becomes important. In this experiment, we determined the crop coefficient of ‘Marandu’ palisadegrass based on accumulated degree-days and estimated plant water consumpt...
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| Format: | Article |
| Language: | English |
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Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo
2021-12-01
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| Series: | Revista de la Facultad de Ciencias Agrarias |
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| Online Access: | https://revistas.uncu.edu.ar/ojs/index.php/RFCA/article/view/3651 |
| _version_ | 1797755997010264064 |
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| author | Débora Pantojo de Souza Arthur Carniato Sanches Fernando Campos Mendonça José Ricardo Macedo Pezzopane Danielle Morais Amorim Fernanda Lamede Ferreira de Jesus |
| author_facet | Débora Pantojo de Souza Arthur Carniato Sanches Fernando Campos Mendonça José Ricardo Macedo Pezzopane Danielle Morais Amorim Fernanda Lamede Ferreira de Jesus |
| author_sort | Débora Pantojo de Souza |
| collection | DOAJ |
| description |
Considering profitability in pasture-based systems, investigating parameters affecting crop coefficients for irrigation management becomes important. In this experiment, we determined the crop coefficient of ‘Marandu’ palisadegrass based on accumulated degree-days and estimated plant water consumption under single (‘Marandu’ alisadegrass) and mixed (‘Marandu’ palisadegrass + black oats + Italian ryegrass) cropping regimes. The research was conducted at the Luiz de Queiroz College of Agriculture in Piracicaba, São Paulo, Brazil, between 2016 and 2017. Evapotranspiration was assessed using weighing lysimeters while crop evapotranspiration was calculated using mean weight variation. Reference evapotranspiration and degree-days were estimated. Data were obtained from an automated weather station. Equations and regression models relating crop coefficient with accumulated degree-days were generated for two seasons (spring/summer and autumn/winter) and evaluated for two year-cycles, from 2015 to 2018. The results showed better prediction accuracy for the single cropping system in spring/summer 2017–18.
Highlights
• The model for determinating crop coefficient (Kc) by accumulated degree-days showed efficient for use in determination local.
• The use of the degree days for determination Kc is more vantage because only necessary to measure the air temperature (maximum and minimum).
• The equations for determining crop coefficient by accumulated degree days for the spring/summer season in Marandu palisade grass cultive show more precision that in mixture forage system.
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| first_indexed | 2024-03-12T17:55:12Z |
| format | Article |
| id | doaj.art-1ae6867148dd4f9b80cbaccfca21b87f |
| institution | Directory Open Access Journal |
| issn | 0370-4661 1853-8665 |
| language | English |
| last_indexed | 2024-03-12T17:55:12Z |
| publishDate | 2021-12-01 |
| publisher | Facultad de Ciencias Agrarias. Universidad Nacional de Cuyo |
| record_format | Article |
| series | Revista de la Facultad de Ciencias Agrarias |
| spelling | doaj.art-1ae6867148dd4f9b80cbaccfca21b87f2023-08-02T17:47:54ZengFacultad de Ciencias Agrarias. Universidad Nacional de CuyoRevista de la Facultad de Ciencias Agrarias0370-46611853-86652021-12-0153210.48162/rev.39.041Crop coefficient estimated by degree-days for ‘Marandu’ palisadegrass and mixed forageDébora Pantojo de Souza0Arthur Carniato Sanches1Fernando Campos Mendonça2José Ricardo Macedo Pezzopane3Danielle Morais Amorim4Fernanda Lamede Ferreira de Jesus5Universidade de São Paulo. Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ). Piracicaba. São Paulo. Brasil.Universidade Federal da Grande Dourados. Faculdade de Ciências Agrárias (FCA). Dourados. Mato Grosso do Sul.Universidade de São Paulo. Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ). Piracicaba. São Paulo. Brasil. Embrapa Pecuária Sudeste. São Carlos. São Paulo. Brasil.Universidade de São Paulo. Escola Superior de Agricultura "Luiz de Queiroz" (ESALQ). Piracicaba. São Paulo. Brasil.Universidade Federal Rural da Amazônia – UFRA. Departamento de Engenharia Agrícola. Tomé Açu. Pará. Brasil. Considering profitability in pasture-based systems, investigating parameters affecting crop coefficients for irrigation management becomes important. In this experiment, we determined the crop coefficient of ‘Marandu’ palisadegrass based on accumulated degree-days and estimated plant water consumption under single (‘Marandu’ alisadegrass) and mixed (‘Marandu’ palisadegrass + black oats + Italian ryegrass) cropping regimes. The research was conducted at the Luiz de Queiroz College of Agriculture in Piracicaba, São Paulo, Brazil, between 2016 and 2017. Evapotranspiration was assessed using weighing lysimeters while crop evapotranspiration was calculated using mean weight variation. Reference evapotranspiration and degree-days were estimated. Data were obtained from an automated weather station. Equations and regression models relating crop coefficient with accumulated degree-days were generated for two seasons (spring/summer and autumn/winter) and evaluated for two year-cycles, from 2015 to 2018. The results showed better prediction accuracy for the single cropping system in spring/summer 2017–18. Highlights • The model for determinating crop coefficient (Kc) by accumulated degree-days showed efficient for use in determination local. • The use of the degree days for determination Kc is more vantage because only necessary to measure the air temperature (maximum and minimum). • The equations for determining crop coefficient by accumulated degree days for the spring/summer season in Marandu palisade grass cultive show more precision that in mixture forage system. https://revistas.uncu.edu.ar/ojs/index.php/RFCA/article/view/3651‘Marandu’ palisadegrassevapotranspirationwater consumption |
| spellingShingle | Débora Pantojo de Souza Arthur Carniato Sanches Fernando Campos Mendonça José Ricardo Macedo Pezzopane Danielle Morais Amorim Fernanda Lamede Ferreira de Jesus Crop coefficient estimated by degree-days for ‘Marandu’ palisadegrass and mixed forage Revista de la Facultad de Ciencias Agrarias ‘Marandu’ palisadegrass evapotranspiration water consumption |
| title | Crop coefficient estimated by degree-days for ‘Marandu’ palisadegrass and mixed forage |
| title_full | Crop coefficient estimated by degree-days for ‘Marandu’ palisadegrass and mixed forage |
| title_fullStr | Crop coefficient estimated by degree-days for ‘Marandu’ palisadegrass and mixed forage |
| title_full_unstemmed | Crop coefficient estimated by degree-days for ‘Marandu’ palisadegrass and mixed forage |
| title_short | Crop coefficient estimated by degree-days for ‘Marandu’ palisadegrass and mixed forage |
| title_sort | crop coefficient estimated by degree days for marandu palisadegrass and mixed forage |
| topic | ‘Marandu’ palisadegrass evapotranspiration water consumption |
| url | https://revistas.uncu.edu.ar/ojs/index.php/RFCA/article/view/3651 |
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