Simulation of productivity and soil moisture under Marandu palisade grass using the CSM-CROPGRO-Perennial Forage model
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1071/CP18258 http://hdl.handle.net/11449/185475 |
Resumo: | Crop models are important tools for assisting farmers and crop consultants to make decisions about fertilisation, irrigation and harvest management, because they allow users to understand productivity from the view of integrated sensitivities of basic plant physiological processes. The first objective of this study was to evaluate the performance of the CSM-CROPGRO-Perennial Forage model (PFM) to simulate regrowth of Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster cv. Marandu under varying irrigation and nitrogen levels. The second objective was to evaluate the water-balance module of the model under soil and climatic conditions in the Cerrado biome of central-eastern Brazil. The experimental data for model evaluation were obtained from a field experiment conducted during 2015, 2016 and 2017, and included herbage production, plant-part composition and plant nitrogen (N) concentration. The results suggest that the model can be used to simulate growth of Marandu palisade grass adequately under different managements of irrigation and N fertilisation. The findings indicate also that the agreement between simulations and field-observed soil moisture shows good performance of the water-balance module of CSM-CROPGRO-PFM. The most important parameterisation required by the model was the determination and calibration of inputs such as the stable soil carbon pool(SOM3) for N mineralisation, which affected the N response, and the soil water-holding characteristics, which affected the irrigation response. The default parameterisation ( species, ecotype, cultivar) of cv. Marandu inCSM-CROPGRO-PFM was sufficient for adequate performance of the model for this new environment and new crop management. However, minor modifications of species parameters were helpful to account for winter-kill of foliage. |
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Simulation of productivity and soil moisture under Marandu palisade grass using the CSM-CROPGRO-Perennial Forage modelDSSAT systemgrasslandCrop models are important tools for assisting farmers and crop consultants to make decisions about fertilisation, irrigation and harvest management, because they allow users to understand productivity from the view of integrated sensitivities of basic plant physiological processes. The first objective of this study was to evaluate the performance of the CSM-CROPGRO-Perennial Forage model (PFM) to simulate regrowth of Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster cv. Marandu under varying irrigation and nitrogen levels. The second objective was to evaluate the water-balance module of the model under soil and climatic conditions in the Cerrado biome of central-eastern Brazil. The experimental data for model evaluation were obtained from a field experiment conducted during 2015, 2016 and 2017, and included herbage production, plant-part composition and plant nitrogen (N) concentration. The results suggest that the model can be used to simulate growth of Marandu palisade grass adequately under different managements of irrigation and N fertilisation. The findings indicate also that the agreement between simulations and field-observed soil moisture shows good performance of the water-balance module of CSM-CROPGRO-PFM. The most important parameterisation required by the model was the determination and calibration of inputs such as the stable soil carbon pool(SOM3) for N mineralisation, which affected the N response, and the soil water-holding characteristics, which affected the irrigation response. The default parameterisation ( species, ecotype, cultivar) of cv. Marandu inCSM-CROPGRO-PFM was sufficient for adequate performance of the model for this new environment and new crop management. However, minor modifications of species parameters were helpful to account for winter-kill of foliage.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Sao Paulo State Univ, Coll Agr & Veterinarian Sci, Dept Rural Engn, BR-14884900 Jaboticabal, SP, BrazilUniv Florida, Agron Dept, Gainesville, FL 32611 USAUniv Florida, Inst Sustainable Food Syst & Agr, Gainesville, FL 32611 USAUniv Florida, Biol Engn Dept, Gainesville, FL 32611 USASao Paulo State Univ, Coll Agr & Veterinarian Sci, Dept Rural Engn, BR-14884900 Jaboticabal, SP, BrazilCsiro PublishingUniversidade Estadual Paulista (Unesp)Univ FloridaSantos, Miqueias G. [UNESP]Boote, Kenneth J.Faria, Rogerio T. [UNESP]Hoogenboom, Gerrit2019-10-04T12:35:43Z2019-10-04T12:35:43Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article159-168http://dx.doi.org/10.1071/CP18258Crop & Pasture Science. Clayton: Csiro Publishing, v. 70, n. 2, p. 159-168, 2019.1836-0947http://hdl.handle.net/11449/18547510.1071/CP18258WOS:000459538600008Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCrop & Pasture Scienceinfo:eu-repo/semantics/openAccess2024-06-06T15:18:57Zoai:repositorio.unesp.br:11449/185475Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:04:25.818811Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Simulation of productivity and soil moisture under Marandu palisade grass using the CSM-CROPGRO-Perennial Forage model |
title |
Simulation of productivity and soil moisture under Marandu palisade grass using the CSM-CROPGRO-Perennial Forage model |
spellingShingle |
Simulation of productivity and soil moisture under Marandu palisade grass using the CSM-CROPGRO-Perennial Forage model Santos, Miqueias G. [UNESP] DSSAT system grassland |
title_short |
Simulation of productivity and soil moisture under Marandu palisade grass using the CSM-CROPGRO-Perennial Forage model |
title_full |
Simulation of productivity and soil moisture under Marandu palisade grass using the CSM-CROPGRO-Perennial Forage model |
title_fullStr |
Simulation of productivity and soil moisture under Marandu palisade grass using the CSM-CROPGRO-Perennial Forage model |
title_full_unstemmed |
Simulation of productivity and soil moisture under Marandu palisade grass using the CSM-CROPGRO-Perennial Forage model |
title_sort |
Simulation of productivity and soil moisture under Marandu palisade grass using the CSM-CROPGRO-Perennial Forage model |
author |
Santos, Miqueias G. [UNESP] |
author_facet |
Santos, Miqueias G. [UNESP] Boote, Kenneth J. Faria, Rogerio T. [UNESP] Hoogenboom, Gerrit |
author_role |
author |
author2 |
Boote, Kenneth J. Faria, Rogerio T. [UNESP] Hoogenboom, Gerrit |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Univ Florida |
dc.contributor.author.fl_str_mv |
Santos, Miqueias G. [UNESP] Boote, Kenneth J. Faria, Rogerio T. [UNESP] Hoogenboom, Gerrit |
dc.subject.por.fl_str_mv |
DSSAT system grassland |
topic |
DSSAT system grassland |
description |
Crop models are important tools for assisting farmers and crop consultants to make decisions about fertilisation, irrigation and harvest management, because they allow users to understand productivity from the view of integrated sensitivities of basic plant physiological processes. The first objective of this study was to evaluate the performance of the CSM-CROPGRO-Perennial Forage model (PFM) to simulate regrowth of Urochloa brizantha (Hochst. ex A. Rich.) R.D. Webster cv. Marandu under varying irrigation and nitrogen levels. The second objective was to evaluate the water-balance module of the model under soil and climatic conditions in the Cerrado biome of central-eastern Brazil. The experimental data for model evaluation were obtained from a field experiment conducted during 2015, 2016 and 2017, and included herbage production, plant-part composition and plant nitrogen (N) concentration. The results suggest that the model can be used to simulate growth of Marandu palisade grass adequately under different managements of irrigation and N fertilisation. The findings indicate also that the agreement between simulations and field-observed soil moisture shows good performance of the water-balance module of CSM-CROPGRO-PFM. The most important parameterisation required by the model was the determination and calibration of inputs such as the stable soil carbon pool(SOM3) for N mineralisation, which affected the N response, and the soil water-holding characteristics, which affected the irrigation response. The default parameterisation ( species, ecotype, cultivar) of cv. Marandu inCSM-CROPGRO-PFM was sufficient for adequate performance of the model for this new environment and new crop management. However, minor modifications of species parameters were helpful to account for winter-kill of foliage. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-04T12:35:43Z 2019-10-04T12:35:43Z 2019-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1071/CP18258 Crop & Pasture Science. Clayton: Csiro Publishing, v. 70, n. 2, p. 159-168, 2019. 1836-0947 http://hdl.handle.net/11449/185475 10.1071/CP18258 WOS:000459538600008 |
url |
http://dx.doi.org/10.1071/CP18258 http://hdl.handle.net/11449/185475 |
identifier_str_mv |
Crop & Pasture Science. Clayton: Csiro Publishing, v. 70, n. 2, p. 159-168, 2019. 1836-0947 10.1071/CP18258 WOS:000459538600008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Crop & Pasture Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
159-168 |
dc.publisher.none.fl_str_mv |
Csiro Publishing |
publisher.none.fl_str_mv |
Csiro Publishing |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129579955519488 |