Simulation of soil water balance and partitioning of evapotranspiration of maize grown in two growing seasons in Southern Brazil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência Rural |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001200253 |
Resumo: | ABSTRACT: The objective of this study was to simulate the variation of the available soil water during maize crop growth, in two different sowing times (first and second growing season), using a drip irrigation system. The treatments consisted of different irrigation strategies (full to deficit). The SIMDualKc simulation model was used to determine the daily soil water balance and crop evapotranspiration using the dual crop coefficient approach. Soil, climate, crop and irrigation parameters were used as input data. Two experiments were carried out in a rainout shelter composed of two metallic structures (16x10m) in the city of Santa Maria, Rio Grande do Sul, Brazil, during 2010/11 (second crop, season 1) and 2011/12 (first crop, season 2) growing seasons, under no-tillage system. The simulations showed that all the irrigation management strategies used in season 2 resulted in soil water deficit, while only two strategies showed deficit in season 1. Results showed good agreement between observed and simulated soil water data, with an R2 ranging from 0.86 to 0.99 and the root mean square error ranging from 2.7 to 5.6% of the total available water for seasons 1 and 2, respectively. The observed results of water balance showed that maize grown in season 2 presented higher water consumption compared to season 1, due to the higher atmospheric demand of season 2. The SIMDualKc model allowed the partitioning of crop evapotranspiration into soil evaporation and crop transpiration, demonstrating that the vegetative growth subperiod presented the greatest differences between the two seasons compared to the others growth phases. |
id |
UFSM-2_7fce82dbfd47ea671078afded4e67f6f |
---|---|
oai_identifier_str |
oai:scielo:S0103-84782017001200253 |
network_acronym_str |
UFSM-2 |
network_name_str |
Ciência rural (Online) |
repository_id_str |
|
spelling |
Simulation of soil water balance and partitioning of evapotranspiration of maize grown in two growing seasons in Southern BrazilSIMDualKcdual coefficientevapotranspiration partitioningsoil evaporationcrop transpirationABSTRACT: The objective of this study was to simulate the variation of the available soil water during maize crop growth, in two different sowing times (first and second growing season), using a drip irrigation system. The treatments consisted of different irrigation strategies (full to deficit). The SIMDualKc simulation model was used to determine the daily soil water balance and crop evapotranspiration using the dual crop coefficient approach. Soil, climate, crop and irrigation parameters were used as input data. Two experiments were carried out in a rainout shelter composed of two metallic structures (16x10m) in the city of Santa Maria, Rio Grande do Sul, Brazil, during 2010/11 (second crop, season 1) and 2011/12 (first crop, season 2) growing seasons, under no-tillage system. The simulations showed that all the irrigation management strategies used in season 2 resulted in soil water deficit, while only two strategies showed deficit in season 1. Results showed good agreement between observed and simulated soil water data, with an R2 ranging from 0.86 to 0.99 and the root mean square error ranging from 2.7 to 5.6% of the total available water for seasons 1 and 2, respectively. The observed results of water balance showed that maize grown in season 2 presented higher water consumption compared to season 1, due to the higher atmospheric demand of season 2. The SIMDualKc model allowed the partitioning of crop evapotranspiration into soil evaporation and crop transpiration, demonstrating that the vegetative growth subperiod presented the greatest differences between the two seasons compared to the others growth phases.Universidade Federal de Santa Maria2017-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001200253Ciência Rural v.47 n.12 2017reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/0103-8478cr20160998info:eu-repo/semantics/openAccessÁvila,Viviane Schons dePetry,Mirta TeresinhaCarlesso,ReimarMartins,Juliano DalcinGonzález,María GabrielaOliveira,Zanandra Boff deNunes,José Nilton VieiraMenegaz,Sônia Thaiseng2017-12-06T00:00:00ZRevista |
dc.title.none.fl_str_mv |
Simulation of soil water balance and partitioning of evapotranspiration of maize grown in two growing seasons in Southern Brazil |
title |
Simulation of soil water balance and partitioning of evapotranspiration of maize grown in two growing seasons in Southern Brazil |
spellingShingle |
Simulation of soil water balance and partitioning of evapotranspiration of maize grown in two growing seasons in Southern Brazil Ávila,Viviane Schons de SIMDualKc dual coefficient evapotranspiration partitioning soil evaporation crop transpiration |
title_short |
Simulation of soil water balance and partitioning of evapotranspiration of maize grown in two growing seasons in Southern Brazil |
title_full |
Simulation of soil water balance and partitioning of evapotranspiration of maize grown in two growing seasons in Southern Brazil |
title_fullStr |
Simulation of soil water balance and partitioning of evapotranspiration of maize grown in two growing seasons in Southern Brazil |
title_full_unstemmed |
Simulation of soil water balance and partitioning of evapotranspiration of maize grown in two growing seasons in Southern Brazil |
title_sort |
Simulation of soil water balance and partitioning of evapotranspiration of maize grown in two growing seasons in Southern Brazil |
author |
Ávila,Viviane Schons de |
author_facet |
Ávila,Viviane Schons de Petry,Mirta Teresinha Carlesso,Reimar Martins,Juliano Dalcin González,María Gabriela Oliveira,Zanandra Boff de Nunes,José Nilton Vieira Menegaz,Sônia Thais |
author_role |
author |
author2 |
Petry,Mirta Teresinha Carlesso,Reimar Martins,Juliano Dalcin González,María Gabriela Oliveira,Zanandra Boff de Nunes,José Nilton Vieira Menegaz,Sônia Thais |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Ávila,Viviane Schons de Petry,Mirta Teresinha Carlesso,Reimar Martins,Juliano Dalcin González,María Gabriela Oliveira,Zanandra Boff de Nunes,José Nilton Vieira Menegaz,Sônia Thais |
dc.subject.por.fl_str_mv |
SIMDualKc dual coefficient evapotranspiration partitioning soil evaporation crop transpiration |
topic |
SIMDualKc dual coefficient evapotranspiration partitioning soil evaporation crop transpiration |
description |
ABSTRACT: The objective of this study was to simulate the variation of the available soil water during maize crop growth, in two different sowing times (first and second growing season), using a drip irrigation system. The treatments consisted of different irrigation strategies (full to deficit). The SIMDualKc simulation model was used to determine the daily soil water balance and crop evapotranspiration using the dual crop coefficient approach. Soil, climate, crop and irrigation parameters were used as input data. Two experiments were carried out in a rainout shelter composed of two metallic structures (16x10m) in the city of Santa Maria, Rio Grande do Sul, Brazil, during 2010/11 (second crop, season 1) and 2011/12 (first crop, season 2) growing seasons, under no-tillage system. The simulations showed that all the irrigation management strategies used in season 2 resulted in soil water deficit, while only two strategies showed deficit in season 1. Results showed good agreement between observed and simulated soil water data, with an R2 ranging from 0.86 to 0.99 and the root mean square error ranging from 2.7 to 5.6% of the total available water for seasons 1 and 2, respectively. The observed results of water balance showed that maize grown in season 2 presented higher water consumption compared to season 1, due to the higher atmospheric demand of season 2. The SIMDualKc model allowed the partitioning of crop evapotranspiration into soil evaporation and crop transpiration, demonstrating that the vegetative growth subperiod presented the greatest differences between the two seasons compared to the others growth phases. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001200253 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001200253 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-8478cr20160998 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Rural v.47 n.12 2017 reponame:Ciência Rural instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Rural |
collection |
Ciência Rural |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1749140552084881408 |