Dry matter production and nitrogen, phosphorus and potassium uptake in Crotalaria juncea and Crotalaria spectabilis

Detalhes bibliográficos
Autor(a) principal: Barbosa, Izabela Richena
Data de Publicação: 2020
Outros Autores: Santana, Rafaela Silva, Mauad, Munir, Garcia, Rodrigo Arroyo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/61011
Resumo: There are several benefits in the cultivation of Crotalaria spp., including high levels of biomass production and N accumulation, nutrient cycling and antagonistic activity against some nematodes. However, information on nutritional demand is still scarce for these species. This study aimed to determine the dry matter production and macronutrient uptake in shoots of Crotalaria juncea and Crotalaria spectabilis. Two experiments (one for each species) were carried out in a randomized block design, with three replications, assessing thirteen harvest times for C. juncea and ten for C. spectabilis. After each harvest, the samples were dried, weighed and submitted to laboratory analysis, in order to determine the nutrient contents in different parts of the plant. The nutrient accumulation on the shoots, for both species, occurred in the order K > N > P, being the stem the main organ of nutrient accumulation. Also for both species, the export of nutrients by the grains followed the order N > K > P. The maximum dry matter accumulation occurred at 135 and 104 days after emergence (DAE), respectively for C. juncea and C. spectabilis, while the production of viable seeds, in both species, had already begun at 90 DAE. KEYWORDS: Green manure, nutrient accumulation, phytomass.
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spelling Dry matter production and nitrogen, phosphorus and potassium uptake in Crotalaria juncea and Crotalaria spectabilisProdução de matéria seca e marcha de absorção de nitrogênio, fósforo e potássio em Crotalaria juncea e Crotalaria spectabilisThere are several benefits in the cultivation of Crotalaria spp., including high levels of biomass production and N accumulation, nutrient cycling and antagonistic activity against some nematodes. However, information on nutritional demand is still scarce for these species. This study aimed to determine the dry matter production and macronutrient uptake in shoots of Crotalaria juncea and Crotalaria spectabilis. Two experiments (one for each species) were carried out in a randomized block design, with three replications, assessing thirteen harvest times for C. juncea and ten for C. spectabilis. After each harvest, the samples were dried, weighed and submitted to laboratory analysis, in order to determine the nutrient contents in different parts of the plant. The nutrient accumulation on the shoots, for both species, occurred in the order K > N > P, being the stem the main organ of nutrient accumulation. Also for both species, the export of nutrients by the grains followed the order N > K > P. The maximum dry matter accumulation occurred at 135 and 104 days after emergence (DAE), respectively for C. juncea and C. spectabilis, while the production of viable seeds, in both species, had already begun at 90 DAE. KEYWORDS: Green manure, nutrient accumulation, phytomass.Inúmeros são os benefícios do cultivo de Crotalaria spp., dentre os quais destacam-se a alta produção de biomassa e acúmulo de N, ciclagem de nutrientes e ação antagônica sobre alguns nematoides. Entretanto, informações sobre a exigência nutricional para essas espécies ainda são escassas. Objetivou-se determinar a produção de matéria seca e a marcha de absorção de macronutrientes na parte aérea de Crotalaria juncea e Crotalaria spectabilis. Dois experimentos foram conduzidos (um para cada espécie) em delineamento de blocos ao acaso, com três repetições, testando-se treze épocas de colheita para C. juncea e dez para C. spectabilis. Após cada colheita, as amostras foram secas, pesadas e submetidas a análise laboratorial, para determinação dos teores de nutrientes em diferentes partes da planta. O acúmulo de nutrientes na parte aérea, para ambas as espécies, ocorreu na ordem K > N > P, sendo o caule o principal órgão de acúmulo de nutrientes. Também para ambas as espécies, a exportação de nutrientes pelos grãos seguiu a ordem N > K > P. O máximo acúmulo de matéria seca ocorreu aos 135 e 104 dias após a emergência (DAE), respectivamente para C. juncea e C. spectabilis, enquanto a produção de sementes viáveis, em ambas as espécies, já havia se iniciado aos 90 DAE. PALAVRAS-CHAVE: Adubo verde, acúmulo de nutrientes, fitomassa.Escola de Agronomia - Universidade Federal de Goiás2020-07-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/61011Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 50 (2020); e61011Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 50 (2020); e61011Pesquisa Agropecuária Tropical; v. 50 (2020); e610111983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/61011/35022Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessBarbosa, Izabela RichenaSantana, Rafaela SilvaMauad, MunirGarcia, Rodrigo Arroyo2020-07-03T15:55:09Zoai:ojs.revistas.ufg.br:article/61011Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:27.826390Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Dry matter production and nitrogen, phosphorus and potassium uptake in Crotalaria juncea and Crotalaria spectabilis
Produção de matéria seca e marcha de absorção de nitrogênio, fósforo e potássio em Crotalaria juncea e Crotalaria spectabilis
title Dry matter production and nitrogen, phosphorus and potassium uptake in Crotalaria juncea and Crotalaria spectabilis
spellingShingle Dry matter production and nitrogen, phosphorus and potassium uptake in Crotalaria juncea and Crotalaria spectabilis
Barbosa, Izabela Richena
title_short Dry matter production and nitrogen, phosphorus and potassium uptake in Crotalaria juncea and Crotalaria spectabilis
title_full Dry matter production and nitrogen, phosphorus and potassium uptake in Crotalaria juncea and Crotalaria spectabilis
title_fullStr Dry matter production and nitrogen, phosphorus and potassium uptake in Crotalaria juncea and Crotalaria spectabilis
title_full_unstemmed Dry matter production and nitrogen, phosphorus and potassium uptake in Crotalaria juncea and Crotalaria spectabilis
title_sort Dry matter production and nitrogen, phosphorus and potassium uptake in Crotalaria juncea and Crotalaria spectabilis
author Barbosa, Izabela Richena
author_facet Barbosa, Izabela Richena
Santana, Rafaela Silva
Mauad, Munir
Garcia, Rodrigo Arroyo
author_role author
author2 Santana, Rafaela Silva
Mauad, Munir
Garcia, Rodrigo Arroyo
author2_role author
author
author
dc.contributor.author.fl_str_mv Barbosa, Izabela Richena
Santana, Rafaela Silva
Mauad, Munir
Garcia, Rodrigo Arroyo
description There are several benefits in the cultivation of Crotalaria spp., including high levels of biomass production and N accumulation, nutrient cycling and antagonistic activity against some nematodes. However, information on nutritional demand is still scarce for these species. This study aimed to determine the dry matter production and macronutrient uptake in shoots of Crotalaria juncea and Crotalaria spectabilis. Two experiments (one for each species) were carried out in a randomized block design, with three replications, assessing thirteen harvest times for C. juncea and ten for C. spectabilis. After each harvest, the samples were dried, weighed and submitted to laboratory analysis, in order to determine the nutrient contents in different parts of the plant. The nutrient accumulation on the shoots, for both species, occurred in the order K > N > P, being the stem the main organ of nutrient accumulation. Also for both species, the export of nutrients by the grains followed the order N > K > P. The maximum dry matter accumulation occurred at 135 and 104 days after emergence (DAE), respectively for C. juncea and C. spectabilis, while the production of viable seeds, in both species, had already begun at 90 DAE. KEYWORDS: Green manure, nutrient accumulation, phytomass.
publishDate 2020
dc.date.none.fl_str_mv 2020-07-03
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/61011
url https://revistas.ufg.br/pat/article/view/61011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/61011/35022
dc.rights.driver.fl_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 50 (2020); e61011
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 50 (2020); e61011
Pesquisa Agropecuária Tropical; v. 50 (2020); e61011
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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