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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
01/11/2022 |
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Data da última atualização: |
01/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SOUZA, S. A.; RODRIGUES, L. N.; CUNHA, F. F. da. |
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Afiliação: |
SILAS ALVES SOUZA; LINEU NEIVA RODRIGUES, CPAC; FERNANDO FRANÇA DA CUNHA. |
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Título: |
Assessing the precision irrigation potential for increasing crop yield and water savings through simulation. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Precision Agriculture, 2022. |
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Páginas: |
27 p. |
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Idioma: |
Inglês |
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Conteúdo: |
In regions such as the Brazilian Cerrado where water availability is low and disputes for water resources are increasing, it is important to evaluate technologies that can increase the efficiency of irrigation. In this scenario, precision irrigation has great potential. However, studies that evaluate the real benefits of precision irrigation are necessary. The present work aimed to assess the precision irrigation potential for increasing crop yield and water savings. To evaluate the possible precision irrigation benefits, two center pivots, acting over soils that had different hydro-physical characteristics, were studied. The available water in the soil (AWC) was used as a reference for irrigation management in two conditions, one considering and one disregarding soil spatial variability. In the management under homogeneous soil conditions, the lowest, the average and the highest AWC values were considered. Management under variable conditions was carried out individually for each pixel with a dimension of 25 m2 (5 × 5 m), considering its real AWC value. Also, four soybean crop sowing dates were considered in a rainy and a dry year. A specific precision irrigation module was developed in Python language to carry out the simulations. The results obtained indicated an average water savings potential of 4.5% in a rainy year and 4.3% in a dry year. The average increased yield potential was 6.4% in the rainy year and 4.0% in the dry year. |
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Thesagro: |
Cerrado; Irrigação; Pivô Central; Recurso Hídrico. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1147962/1/Lineu-Assessing-the-precision-irrigation-potential-for-increasing-RESTRITO.pdf
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Marc: |
LEADER 02042naa a2200205 a 4500
001 2147962
005 2022-11-01
008 2022 bl uuuu u00u1 u #d
100 1 $aSOUZA, S. A.
245 $aAssessing the precision irrigation potential for increasing crop yield and water savings through simulation.$h[electronic resource]
260 $c2022
300 $a27 p.
520 $aIn regions such as the Brazilian Cerrado where water availability is low and disputes for water resources are increasing, it is important to evaluate technologies that can increase the efficiency of irrigation. In this scenario, precision irrigation has great potential. However, studies that evaluate the real benefits of precision irrigation are necessary. The present work aimed to assess the precision irrigation potential for increasing crop yield and water savings. To evaluate the possible precision irrigation benefits, two center pivots, acting over soils that had different hydro-physical characteristics, were studied. The available water in the soil (AWC) was used as a reference for irrigation management in two conditions, one considering and one disregarding soil spatial variability. In the management under homogeneous soil conditions, the lowest, the average and the highest AWC values were considered. Management under variable conditions was carried out individually for each pixel with a dimension of 25 m2 (5 × 5 m), considering its real AWC value. Also, four soybean crop sowing dates were considered in a rainy and a dry year. A specific precision irrigation module was developed in Python language to carry out the simulations. The results obtained indicated an average water savings potential of 4.5% in a rainy year and 4.3% in a dry year. The average increased yield potential was 6.4% in the rainy year and 4.0% in the dry year.
650 $aCerrado
650 $aIrrigação
650 $aPivô Central
650 $aRecurso Hídrico
700 1 $aRODRIGUES, L. N.
700 1 $aCUNHA, F. F. da
773 $tPrecision Agriculture, 2022.
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Embrapa Cerrados (CPAC) |
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