Alterações nutricionais no capim-marandu adubado com doses de nitrogênio e enxofre
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Tipo de documento: | Trabalho de conclusão de curso |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Monografias da UFMT |
Texto Completo: | http://bdm.ufmt.br/handle/1/2406 |
Resumo: | Pasture fertilization is among the most important practices to determine the yield per area, and nitrogen (N) and sulfur (S) have great relevance for the growth and nutritional value of forage plants.The objective of this study was to evaluate the influence of the N and S combinations on the nutritional characteristics of Brachiaria brizantha cv. Marandu cultivated in pots. The experiment was carried out in the greenhouse from November 2017 to January 2018. A fractionated 52 factorial scheme was used, with 13 combinations defined for N and S: 0; 0, 20; 0.40; 100, 10; 100, 30; 200.0; 200, 20; 200, 40; 300, 10; 300, 30; 400.0; 400, 20 and 400, 40 mg dm-3 , which were distributed according to a randomized block design with four replicates. Two cuts were made in the plants, occasions when the shoots were separated in emergent leaves, newly expanded leaf blades, ripe leaf blades and stems plus sheaths and roots in the second cut. N and S concentrations were evaluated in plant parts and SPAD value in the diagnostic leaves. The data were analyzed by the F test adopting the level of 5% of significance. For the significant N x S interactions a polynomial regression study was carried out and for the effect of N and / or S doses alone a first and second degree regression study was performed. Marandu grass presented a positive correlation between SPAD values and nitrogen doses, indicating forage quality improvements due to the addition of N and influencing the photosynthetic capacity. The maximum concentration of nitrogen and sulfur occurs in mature leaves and roots, respectively, of Marandu grass. The concentrations of nitrogen and sulfur in the aerial part reach maximum values when higher doses are applied to the soil. The application mainly of nitrogen, but also of sulfur, influences the nutritional state of the marandu grass. |
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Alterações nutricionais no capim-marandu adubado com doses de nitrogênio e enxofreCNPQ::CIENCIAS AGRARIAS::AGRONOMIABrachiaria brizanthanutrição mineralSPADBrachiaria brizanthamineral nutritionSPADPasture fertilization is among the most important practices to determine the yield per area, and nitrogen (N) and sulfur (S) have great relevance for the growth and nutritional value of forage plants.The objective of this study was to evaluate the influence of the N and S combinations on the nutritional characteristics of Brachiaria brizantha cv. Marandu cultivated in pots. The experiment was carried out in the greenhouse from November 2017 to January 2018. A fractionated 52 factorial scheme was used, with 13 combinations defined for N and S: 0; 0, 20; 0.40; 100, 10; 100, 30; 200.0; 200, 20; 200, 40; 300, 10; 300, 30; 400.0; 400, 20 and 400, 40 mg dm-3 , which were distributed according to a randomized block design with four replicates. Two cuts were made in the plants, occasions when the shoots were separated in emergent leaves, newly expanded leaf blades, ripe leaf blades and stems plus sheaths and roots in the second cut. N and S concentrations were evaluated in plant parts and SPAD value in the diagnostic leaves. The data were analyzed by the F test adopting the level of 5% of significance. For the significant N x S interactions a polynomial regression study was carried out and for the effect of N and / or S doses alone a first and second degree regression study was performed. Marandu grass presented a positive correlation between SPAD values and nitrogen doses, indicating forage quality improvements due to the addition of N and influencing the photosynthetic capacity. The maximum concentration of nitrogen and sulfur occurs in mature leaves and roots, respectively, of Marandu grass. The concentrations of nitrogen and sulfur in the aerial part reach maximum values when higher doses are applied to the soil. The application mainly of nitrogen, but also of sulfur, influences the nutritional state of the marandu grass.A adubação em pastagens está entre as práticas mais importantes para determinar a produção por área, e o nitrogênio (N) e enxofre (S) possuem grande relevância quanto ao corte e valor nutritivo das plantas forrageiras. Objetivou-se avaliar a influência das combinações de N e S, nas características nutricionais do capim Brachiaria brizantha cv. Marandu cultivado em vasos. O experimento foi realizado em casa-de-vegetação, no período de Novembro de 2017 a Janeiro de 2018. Utilizou-se esquema fatorial 52 fracionado, com 13 combinações assim definidas, para N e S: 0, 0; 0, 20; 0, 40; 100, 10; 100, 30; 200, 0; 200, 20; 200, 40; 300, 10; 300, 30; 400, 0; 400, 20 e 400, 40 mg dm-3 , as quais foram distribuídas segundo delineamento estatístico de blocos ao acaso, com quatro repetições. Foram realizados dois cortes nas plantas, ocasiões em que se separou a parte aérea em folhas emergentes, lâminas de folhas recém-expandidas, lâminas de folhas maduras e colmos mais bainhas e raízes no segundo corte. Avaliou-se concentração de N e S nas partes das plantas e valor SPAD nas folhas diagnósticas. Os dados foram analisados pelo teste F adotando-se o nível de 5% de significância. Para as interações N x S significativas efetuou-se estudo de superfície de resposta e para o efeito de doses de N e/ou S isoladamente efetuou-se estudo de regressão de primeiro e segundo graus. O capimmarandu apresentou correlação positiva entre os valores SPAD e as doses de nitrogênio, indicando melhorias de qualidade de forrageira em função da adição de N e influenciando na capacidade fotossíntetica. A máxima concentração de nitrogênio e de enxofre ocorre nas lâminas de folhas maduras e nas raízes, respectivamente, do capim-marandu. As concentrações de nitrogênio e de enxofre na parte aérea atingem máximos valores quando maiores doses são aplicadas ao solo. A aplicação principalmente de nitrogênio, mas também de enxofre, influencia o estado nutricional do capim-marandu.Universidade Federal de Mato GrossoBrasilInstituto de Ciências Exatas e da Terra (ICET) – AraguaiaUFMT CUA - AraguaiaAgronomia - CUAMelo, Suzana Pereira de0392957201020352http://lattes.cnpq.br/0392957201020352Melo, Suzana Pereira de0392957201020352http://lattes.cnpq.br/0392957201020352Santos, Carlos Leandro Rodrigues dos0054668076313809http://lattes.cnpq.br/0054668076313809Lira, Aline de Oliveira9372146447026795http://lattes.cnpq.br/9372146447026795Faria, Renata Costa de2022-07-19T19:43:53Z2019-04-102022-07-19T19:43:53Z2019-03-29info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/datasetFARIA, Renata Costa de. Alterações nutricionais no capim-marandu adubado com doses de nitrogênio e enxofre. 2019. 46 f. Monografia (Bacharelado em Agronomia) – Instituto de Ciências Exatas e da Terra, Universidade Federal de Mato Grosso, Barra do Garças, 2019.http://bdm.ufmt.br/handle/1/2406porinfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Monografias da UFMTinstname:Universidade Federal de Mato Grosso (UFMT)instacron:UFMT2022-07-21T07:03:44Zoai:localhost:1/2406Biblioteca Digital de Monografiahttps://bdm.ufmt.br/PUBhttp://200.129.241.122/oai/requestopendoar:2022-07-21T07:03:44falseBiblioteca Digital de Monografiahttps://bdm.ufmt.br/PUBhttp://200.129.241.122/oai/requestbibliotecacentral@ufmt.br||opendoar:2022-07-21T07:03:44Biblioteca Digital de Monografias da UFMT - Universidade Federal de Mato Grosso (UFMT)false |
dc.title.none.fl_str_mv |
Alterações nutricionais no capim-marandu adubado com doses de nitrogênio e enxofre |
title |
Alterações nutricionais no capim-marandu adubado com doses de nitrogênio e enxofre |
spellingShingle |
Alterações nutricionais no capim-marandu adubado com doses de nitrogênio e enxofre Faria, Renata Costa de CNPQ::CIENCIAS AGRARIAS::AGRONOMIA Brachiaria brizantha nutrição mineral SPAD Brachiaria brizantha mineral nutrition SPAD |
title_short |
Alterações nutricionais no capim-marandu adubado com doses de nitrogênio e enxofre |
title_full |
Alterações nutricionais no capim-marandu adubado com doses de nitrogênio e enxofre |
title_fullStr |
Alterações nutricionais no capim-marandu adubado com doses de nitrogênio e enxofre |
title_full_unstemmed |
Alterações nutricionais no capim-marandu adubado com doses de nitrogênio e enxofre |
title_sort |
Alterações nutricionais no capim-marandu adubado com doses de nitrogênio e enxofre |
author |
Faria, Renata Costa de |
author_facet |
Faria, Renata Costa de |
author_role |
author |
dc.contributor.none.fl_str_mv |
Melo, Suzana Pereira de 0392957201020352 http://lattes.cnpq.br/0392957201020352 Melo, Suzana Pereira de 0392957201020352 http://lattes.cnpq.br/0392957201020352 Santos, Carlos Leandro Rodrigues dos 0054668076313809 http://lattes.cnpq.br/0054668076313809 Lira, Aline de Oliveira 9372146447026795 http://lattes.cnpq.br/9372146447026795 |
dc.contributor.author.fl_str_mv |
Faria, Renata Costa de |
dc.subject.por.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA Brachiaria brizantha nutrição mineral SPAD Brachiaria brizantha mineral nutrition SPAD |
topic |
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA Brachiaria brizantha nutrição mineral SPAD Brachiaria brizantha mineral nutrition SPAD |
description |
Pasture fertilization is among the most important practices to determine the yield per area, and nitrogen (N) and sulfur (S) have great relevance for the growth and nutritional value of forage plants.The objective of this study was to evaluate the influence of the N and S combinations on the nutritional characteristics of Brachiaria brizantha cv. Marandu cultivated in pots. The experiment was carried out in the greenhouse from November 2017 to January 2018. A fractionated 52 factorial scheme was used, with 13 combinations defined for N and S: 0; 0, 20; 0.40; 100, 10; 100, 30; 200.0; 200, 20; 200, 40; 300, 10; 300, 30; 400.0; 400, 20 and 400, 40 mg dm-3 , which were distributed according to a randomized block design with four replicates. Two cuts were made in the plants, occasions when the shoots were separated in emergent leaves, newly expanded leaf blades, ripe leaf blades and stems plus sheaths and roots in the second cut. N and S concentrations were evaluated in plant parts and SPAD value in the diagnostic leaves. The data were analyzed by the F test adopting the level of 5% of significance. For the significant N x S interactions a polynomial regression study was carried out and for the effect of N and / or S doses alone a first and second degree regression study was performed. Marandu grass presented a positive correlation between SPAD values and nitrogen doses, indicating forage quality improvements due to the addition of N and influencing the photosynthetic capacity. The maximum concentration of nitrogen and sulfur occurs in mature leaves and roots, respectively, of Marandu grass. The concentrations of nitrogen and sulfur in the aerial part reach maximum values when higher doses are applied to the soil. The application mainly of nitrogen, but also of sulfur, influences the nutritional state of the marandu grass. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-04-10 2019-03-29 2022-07-19T19:43:53Z 2022-07-19T19:43:53Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/bachelorThesis info:eu-repo/semantics/dataset |
format |
bachelorThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
FARIA, Renata Costa de. Alterações nutricionais no capim-marandu adubado com doses de nitrogênio e enxofre. 2019. 46 f. Monografia (Bacharelado em Agronomia) – Instituto de Ciências Exatas e da Terra, Universidade Federal de Mato Grosso, Barra do Garças, 2019. http://bdm.ufmt.br/handle/1/2406 |
identifier_str_mv |
FARIA, Renata Costa de. Alterações nutricionais no capim-marandu adubado com doses de nitrogênio e enxofre. 2019. 46 f. Monografia (Bacharelado em Agronomia) – Instituto de Ciências Exatas e da Terra, Universidade Federal de Mato Grosso, Barra do Garças, 2019. |
url |
http://bdm.ufmt.br/handle/1/2406 |
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por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Mato Grosso Brasil Instituto de Ciências Exatas e da Terra (ICET) – Araguaia UFMT CUA - Araguaia Agronomia - CUA |
publisher.none.fl_str_mv |
Universidade Federal de Mato Grosso Brasil Instituto de Ciências Exatas e da Terra (ICET) – Araguaia UFMT CUA - Araguaia Agronomia - CUA |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Monografias da UFMT instname:Universidade Federal de Mato Grosso (UFMT) instacron:UFMT |
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Universidade Federal de Mato Grosso (UFMT) |
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UFMT |
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UFMT |
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Biblioteca Digital de Monografias da UFMT |
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Biblioteca Digital de Monografias da UFMT |
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Biblioteca Digital de Monografias da UFMT - Universidade Federal de Mato Grosso (UFMT) |
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