BIOMASS YIELD OF CROTALARIA JUNCEA AFTER THINNING AND AT VARIED SOWING DENSITIES IN THE COASTAL PLATEAU OF PIAUÍ STATE, BRAZIL
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/5010 |
Resumo: | The northern region of Piauí state is an important center of irrigated organic fruit farming, wherein sandy soils with low organic matter content are predominant, besides climate with high temperatures, long periods of water deficit and constant wind. Given this situation, it becomes necessary to investigate alternative management options able to meet the challenges of agricultural productivity. In this context, green manuring becomes an important practice, mainly when using fast-growing species and with great potential for biomass production. Thus, a study was carried out at Embrapa Meio-Norte to measure Crotalaria juncea biomass yield after thinning and at various sowing densities. The evaluated parameters were plant height, stem diameter, number of branches per plant, fresh and dry weight of shoots and roots. The results showed that sowing density had no influence on plant height; however, unthinned plants reached greater heights, which might have been due to reduced competition for light. Thinning had no effect on diameters of plant stem base; on the other hand, lower planting densities promoted larger diameters also due to less competition. Likewise, the number of branches per plant was not affected by thinning, being greater at lower planting densities on account of less competition. Thinned plants achieved higher averages of fresh shoot weight. Nevertheless, shoot dry biomass was greater at higher planting densities. Furthermore, both fresh and dry weight of roots were not influenced by any of the adopted treatments. |
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BIOMASS YIELD OF CROTALARIA JUNCEA AFTER THINNING AND AT VARIED SOWING DENSITIES IN THE COASTAL PLATEAU OF PIAUÍ STATE, BRAZILPRODUTIVIDADE DA CROTALARIA JUNCEA SOB PODAS E DENSIDADES DE SEMEADURA NOS TABULEIROS COSTEIROS DO PIAUÍGreen manuring. Cover crops. Management.Adubo verde. Plantas de cobertura. Manejo.The northern region of Piauí state is an important center of irrigated organic fruit farming, wherein sandy soils with low organic matter content are predominant, besides climate with high temperatures, long periods of water deficit and constant wind. Given this situation, it becomes necessary to investigate alternative management options able to meet the challenges of agricultural productivity. In this context, green manuring becomes an important practice, mainly when using fast-growing species and with great potential for biomass production. Thus, a study was carried out at Embrapa Meio-Norte to measure Crotalaria juncea biomass yield after thinning and at various sowing densities. The evaluated parameters were plant height, stem diameter, number of branches per plant, fresh and dry weight of shoots and roots. The results showed that sowing density had no influence on plant height; however, unthinned plants reached greater heights, which might have been due to reduced competition for light. Thinning had no effect on diameters of plant stem base; on the other hand, lower planting densities promoted larger diameters also due to less competition. Likewise, the number of branches per plant was not affected by thinning, being greater at lower planting densities on account of less competition. Thinned plants achieved higher averages of fresh shoot weight. Nevertheless, shoot dry biomass was greater at higher planting densities. Furthermore, both fresh and dry weight of roots were not influenced by any of the adopted treatments.Na região norte do Estado do Piauí, concentra-se um importante polo de fruticultura orgânica irrigada, onde há predomínio de solos com textura arenosa e baixos teores de matéria orgânica, além de clima com temperaturas elevadas, com longos períodos de déficit hídrico e vento constante. Diante desse quadro, faz-se necessário investigar formas alternativas de manejo, capazes de responder aos desafios da produção agrícola. Portanto, é relevante destacar a utilização da adubação verde, principalmente com espécies de crescimento rápido e com bom potencial de produção de biomassa. Com o objetivo de avaliar a produtividade da C. juncea. sob a influência de podas e densidades de semeadura, foi instalado um ensaio na Embrapa Meio-Norte. Foram avaliadas a altura das plantas, diâmetro de caule, número de ramos por planta, massa fresca e seca da parte aérea e das raízes. A densidade de semeadura não influenciou na altura das plantas, no entanto, observou-se maior altura das plantas que não foram podadas, provavelmente, em função da menor competição por luz. O diâmetro do colo das plantas não foi influenciado pelas podas, porém, foi maior na menor densidade de plantio, em função da menor competição. O número de ramos nas plantas também não foi influenciado pelas podas, entretanto, foi maior quanto menor a densidade de plantio, possivelmente em função da menor competição. Os tratamentos que receberam podas, obtiveram médias superiores de massa fresca da parte aérea. Entretanto, a massa seca da parte aérea foi superior na maior densidade de plantio. As massas fresca e seca das raízes não foram influenciadas por nenhum dos tratamentos adotados.Universidade Federal Rural do Semi-Árido2016-09-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/501010.1590/1983-21252016v29n412rcREVISTA CAATINGA; Vol. 29 No. 4 (2016); 878-884Revista Caatinga; v. 29 n. 4 (2016); 878-8841983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/5010/pdfTeodoro, Mauro SergioSantos, Francisco José de SeixasLacerda, Mairla Nascimento deAraújo, Luma Melisa da Silvainfo:eu-repo/semantics/openAccess2023-07-19T18:50:21Zoai:ojs.periodicos.ufersa.edu.br:article/5010Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:20.478916Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
BIOMASS YIELD OF CROTALARIA JUNCEA AFTER THINNING AND AT VARIED SOWING DENSITIES IN THE COASTAL PLATEAU OF PIAUÍ STATE, BRAZIL PRODUTIVIDADE DA CROTALARIA JUNCEA SOB PODAS E DENSIDADES DE SEMEADURA NOS TABULEIROS COSTEIROS DO PIAUÍ |
title |
BIOMASS YIELD OF CROTALARIA JUNCEA AFTER THINNING AND AT VARIED SOWING DENSITIES IN THE COASTAL PLATEAU OF PIAUÍ STATE, BRAZIL |
spellingShingle |
BIOMASS YIELD OF CROTALARIA JUNCEA AFTER THINNING AND AT VARIED SOWING DENSITIES IN THE COASTAL PLATEAU OF PIAUÍ STATE, BRAZIL Teodoro, Mauro Sergio Green manuring. Cover crops. Management. Adubo verde. Plantas de cobertura. Manejo. |
title_short |
BIOMASS YIELD OF CROTALARIA JUNCEA AFTER THINNING AND AT VARIED SOWING DENSITIES IN THE COASTAL PLATEAU OF PIAUÍ STATE, BRAZIL |
title_full |
BIOMASS YIELD OF CROTALARIA JUNCEA AFTER THINNING AND AT VARIED SOWING DENSITIES IN THE COASTAL PLATEAU OF PIAUÍ STATE, BRAZIL |
title_fullStr |
BIOMASS YIELD OF CROTALARIA JUNCEA AFTER THINNING AND AT VARIED SOWING DENSITIES IN THE COASTAL PLATEAU OF PIAUÍ STATE, BRAZIL |
title_full_unstemmed |
BIOMASS YIELD OF CROTALARIA JUNCEA AFTER THINNING AND AT VARIED SOWING DENSITIES IN THE COASTAL PLATEAU OF PIAUÍ STATE, BRAZIL |
title_sort |
BIOMASS YIELD OF CROTALARIA JUNCEA AFTER THINNING AND AT VARIED SOWING DENSITIES IN THE COASTAL PLATEAU OF PIAUÍ STATE, BRAZIL |
author |
Teodoro, Mauro Sergio |
author_facet |
Teodoro, Mauro Sergio Santos, Francisco José de Seixas Lacerda, Mairla Nascimento de Araújo, Luma Melisa da Silva |
author_role |
author |
author2 |
Santos, Francisco José de Seixas Lacerda, Mairla Nascimento de Araújo, Luma Melisa da Silva |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Teodoro, Mauro Sergio Santos, Francisco José de Seixas Lacerda, Mairla Nascimento de Araújo, Luma Melisa da Silva |
dc.subject.por.fl_str_mv |
Green manuring. Cover crops. Management. Adubo verde. Plantas de cobertura. Manejo. |
topic |
Green manuring. Cover crops. Management. Adubo verde. Plantas de cobertura. Manejo. |
description |
The northern region of Piauí state is an important center of irrigated organic fruit farming, wherein sandy soils with low organic matter content are predominant, besides climate with high temperatures, long periods of water deficit and constant wind. Given this situation, it becomes necessary to investigate alternative management options able to meet the challenges of agricultural productivity. In this context, green manuring becomes an important practice, mainly when using fast-growing species and with great potential for biomass production. Thus, a study was carried out at Embrapa Meio-Norte to measure Crotalaria juncea biomass yield after thinning and at various sowing densities. The evaluated parameters were plant height, stem diameter, number of branches per plant, fresh and dry weight of shoots and roots. The results showed that sowing density had no influence on plant height; however, unthinned plants reached greater heights, which might have been due to reduced competition for light. Thinning had no effect on diameters of plant stem base; on the other hand, lower planting densities promoted larger diameters also due to less competition. Likewise, the number of branches per plant was not affected by thinning, being greater at lower planting densities on account of less competition. Thinned plants achieved higher averages of fresh shoot weight. Nevertheless, shoot dry biomass was greater at higher planting densities. Furthermore, both fresh and dry weight of roots were not influenced by any of the adopted treatments. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-09-13 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/5010 10.1590/1983-21252016v29n412rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/5010 |
identifier_str_mv |
10.1590/1983-21252016v29n412rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/5010/pdf |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 29 No. 4 (2016); 878-884 Revista Caatinga; v. 29 n. 4 (2016); 878-884 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
_version_ |
1797674025904766976 |