Soil attributes under different water management systems of rice paddies in the Amazonian Savanna of Brazil.
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
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/1133047 |
Resumo: | The rational use of water while considering the increases in food production is a great challenge for agriculture currently. The aim of the present study was to evaluate the soil properties of rice paddy areas under different water management systems. For this, the rice cultivars BRS Tropical and IRGA 424 were grown under the following treatments: M1: Intermittent flooding; M2: Intermittent flooding, followed by continuous flooding; M3: Continuous flooding, followed by intermittent flooding; and M4: Continuous flooding for the entire plant cycle. As a control, a non-cultivated area, adjacent to the experimental plots was also evaluated. The variables analyzed were P, K+, Ca2+, Mg2+ and Al3+ contents, pH, soil organic carbon (SOC), total nitrogen (TN) Carbon Stock (C-Stock), nitrogen stock (N-Stock), Cation-exchange capacity (CEC), C/N ratio; CO2 emission, soil microbial biomass carbon (SMB), metabolic coefficient (qMic) and acid phosphatase and urease activities. There was not difference among the different water management systems for P, K+, Mg2+, CEC and C/N ratio. The SMB and the acid phosphatase and urease activities were lower under the different treatments when compared to the control. The CO2 emission under rice paddy system was influenced by the phenological phase of the crop. The variables SOC, C-Stock, SMB, C/N ratio, K+, acid phosphatase and usease activities are those most sensitive attributes observed in the soil under different water management systems during rice cultivation. Water management in the rice paddy system influenced soil by changing its quality. |
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Soil attributes under different water management systems of rice paddies in the Amazonian Savanna of Brazil.CO2 effluxPaddy environmentSoil quality indicatorsSoil enzymesThe rational use of water while considering the increases in food production is a great challenge for agriculture currently. The aim of the present study was to evaluate the soil properties of rice paddy areas under different water management systems. For this, the rice cultivars BRS Tropical and IRGA 424 were grown under the following treatments: M1: Intermittent flooding; M2: Intermittent flooding, followed by continuous flooding; M3: Continuous flooding, followed by intermittent flooding; and M4: Continuous flooding for the entire plant cycle. As a control, a non-cultivated area, adjacent to the experimental plots was also evaluated. The variables analyzed were P, K+, Ca2+, Mg2+ and Al3+ contents, pH, soil organic carbon (SOC), total nitrogen (TN) Carbon Stock (C-Stock), nitrogen stock (N-Stock), Cation-exchange capacity (CEC), C/N ratio; CO2 emission, soil microbial biomass carbon (SMB), metabolic coefficient (qMic) and acid phosphatase and urease activities. There was not difference among the different water management systems for P, K+, Mg2+, CEC and C/N ratio. The SMB and the acid phosphatase and urease activities were lower under the different treatments when compared to the control. The CO2 emission under rice paddy system was influenced by the phenological phase of the crop. The variables SOC, C-Stock, SMB, C/N ratio, K+, acid phosphatase and usease activities are those most sensitive attributes observed in the soil under different water management systems during rice cultivation. Water management in the rice paddy system influenced soil by changing its quality.ANTONIO CARLOS CENTENO CORDEIRO, CPAF-RR.EVALD, A.MELO, V. F.ROCHA, P. R. R.CORDEIRO, A. C. C.MAIA, S. da S.ESPINDOLA, I. DE C.2021-07-20T19:01:10Z2021-07-20T19:01:10Z2021-07-202021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Caatinga, Mossoró, v. 34, n. 3, p. 640 - 649, jul.- set., 2021.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133047porinfo: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:EMBRAPA2021-07-20T19:01:18Zoai:www.alice.cnptia.embrapa.br:doc/1133047Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542021-07-20T19:01:18falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542021-07-20T19:01:18Repositório 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 |
Soil attributes under different water management systems of rice paddies in the Amazonian Savanna of Brazil. |
title |
Soil attributes under different water management systems of rice paddies in the Amazonian Savanna of Brazil. |
spellingShingle |
Soil attributes under different water management systems of rice paddies in the Amazonian Savanna of Brazil. EVALD, A. CO2 efflux Paddy environment Soil quality indicators Soil enzymes |
title_short |
Soil attributes under different water management systems of rice paddies in the Amazonian Savanna of Brazil. |
title_full |
Soil attributes under different water management systems of rice paddies in the Amazonian Savanna of Brazil. |
title_fullStr |
Soil attributes under different water management systems of rice paddies in the Amazonian Savanna of Brazil. |
title_full_unstemmed |
Soil attributes under different water management systems of rice paddies in the Amazonian Savanna of Brazil. |
title_sort |
Soil attributes under different water management systems of rice paddies in the Amazonian Savanna of Brazil. |
author |
EVALD, A. |
author_facet |
EVALD, A. MELO, V. F. ROCHA, P. R. R. CORDEIRO, A. C. C. MAIA, S. da S. ESPINDOLA, I. DE C. |
author_role |
author |
author2 |
MELO, V. F. ROCHA, P. R. R. CORDEIRO, A. C. C. MAIA, S. da S. ESPINDOLA, I. DE C. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
ANTONIO CARLOS CENTENO CORDEIRO, CPAF-RR. |
dc.contributor.author.fl_str_mv |
EVALD, A. MELO, V. F. ROCHA, P. R. R. CORDEIRO, A. C. C. MAIA, S. da S. ESPINDOLA, I. DE C. |
dc.subject.por.fl_str_mv |
CO2 efflux Paddy environment Soil quality indicators Soil enzymes |
topic |
CO2 efflux Paddy environment Soil quality indicators Soil enzymes |
description |
The rational use of water while considering the increases in food production is a great challenge for agriculture currently. The aim of the present study was to evaluate the soil properties of rice paddy areas under different water management systems. For this, the rice cultivars BRS Tropical and IRGA 424 were grown under the following treatments: M1: Intermittent flooding; M2: Intermittent flooding, followed by continuous flooding; M3: Continuous flooding, followed by intermittent flooding; and M4: Continuous flooding for the entire plant cycle. As a control, a non-cultivated area, adjacent to the experimental plots was also evaluated. The variables analyzed were P, K+, Ca2+, Mg2+ and Al3+ contents, pH, soil organic carbon (SOC), total nitrogen (TN) Carbon Stock (C-Stock), nitrogen stock (N-Stock), Cation-exchange capacity (CEC), C/N ratio; CO2 emission, soil microbial biomass carbon (SMB), metabolic coefficient (qMic) and acid phosphatase and urease activities. There was not difference among the different water management systems for P, K+, Mg2+, CEC and C/N ratio. The SMB and the acid phosphatase and urease activities were lower under the different treatments when compared to the control. The CO2 emission under rice paddy system was influenced by the phenological phase of the crop. The variables SOC, C-Stock, SMB, C/N ratio, K+, acid phosphatase and usease activities are those most sensitive attributes observed in the soil under different water management systems during rice cultivation. Water management in the rice paddy system influenced soil by changing its quality. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-07-20T19:01:10Z 2021-07-20T19:01:10Z 2021-07-20 2021 |
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 |
Revista Caatinga, Mossoró, v. 34, n. 3, p. 640 - 649, jul.- set., 2021. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133047 |
identifier_str_mv |
Revista Caatinga, Mossoró, v. 34, n. 3, p. 640 - 649, jul.- set., 2021. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1133047 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
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1794503507080904704 |