Assessing the precision irrigation potential for increasing crop yield and water savings through simulation.

Detalhes bibliográficos
Autor(a) principal: SOUZA, S. A.
Data de Publicação: 2022
Outros Autores: RODRIGUES, L. N., CUNHA, F. F. da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1147962
Resumo: 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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spelling Assessing the precision irrigation potential for increasing crop yield and water savings through simulation.IrrigaçãoPivô CentralRecurso HídricoCerradoIn 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.SILAS ALVES SOUZA; LINEU NEIVA RODRIGUES, CPAC; FERNANDO FRANÇA DA CUNHA.SOUZA, S. A.RODRIGUES, L. N.CUNHA, F. F. da2022-11-01T19:09:16Z2022-11-01T19:09:16Z2022-11-012022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article27 p.Precision Agriculture, 2022.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1147962enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2022-11-01T19:09:25Zoai:www.alice.cnptia.embrapa.br:doc/1147962Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542022-11-01T19:09:25falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542022-11-01T19:09:25Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Assessing the precision irrigation potential for increasing crop yield and water savings through simulation.
title Assessing the precision irrigation potential for increasing crop yield and water savings through simulation.
spellingShingle Assessing the precision irrigation potential for increasing crop yield and water savings through simulation.
SOUZA, S. A.
Irrigação
Pivô Central
Recurso Hídrico
Cerrado
title_short Assessing the precision irrigation potential for increasing crop yield and water savings through simulation.
title_full Assessing the precision irrigation potential for increasing crop yield and water savings through simulation.
title_fullStr Assessing the precision irrigation potential for increasing crop yield and water savings through simulation.
title_full_unstemmed Assessing the precision irrigation potential for increasing crop yield and water savings through simulation.
title_sort Assessing the precision irrigation potential for increasing crop yield and water savings through simulation.
author SOUZA, S. A.
author_facet SOUZA, S. A.
RODRIGUES, L. N.
CUNHA, F. F. da
author_role author
author2 RODRIGUES, L. N.
CUNHA, F. F. da
author2_role author
author
dc.contributor.none.fl_str_mv SILAS ALVES SOUZA; LINEU NEIVA RODRIGUES, CPAC; FERNANDO FRANÇA DA CUNHA.
dc.contributor.author.fl_str_mv SOUZA, S. A.
RODRIGUES, L. N.
CUNHA, F. F. da
dc.subject.por.fl_str_mv Irrigação
Pivô Central
Recurso Hídrico
Cerrado
topic Irrigação
Pivô Central
Recurso Hídrico
Cerrado
description 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.
publishDate 2022
dc.date.none.fl_str_mv 2022-11-01T19:09:16Z
2022-11-01T19:09:16Z
2022-11-01
2022
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Precision Agriculture, 2022.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1147962
identifier_str_mv Precision Agriculture, 2022.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1147962
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 27 p.
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
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repository.mail.fl_str_mv cg-riaa@embrapa.br
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