Assessing the precision irrigation potential for increasing crop yield and water savings through simulation.
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | , |
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. |
id |
EMBR_f9969c77c690aaf5075ef2b906a6f720 |
---|---|
oai_identifier_str |
oai:www.alice.cnptia.embrapa.br:doc/1147962 |
network_acronym_str |
EMBR |
network_name_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository_id_str |
2154 |
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) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
_version_ |
1794503533740949504 |