Nutritional factors limiting growth of tropical forage species in two soils from "zona da mata", MG. I. Red-Yellow latosol
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/15636 |
Resumo: | Two experiments were undertaken concurrently in a glasshouse to identify the nutritional factors which limit the growth of molasses grass (Melinis minutiflora Beauv.) and Centrosema pubescens Benth, in a Red-Yellow Latosol. A subtractive technique was used to compare the effect of the omission of: lime, N, K, S, Ca, Mg and micronutrients, against a complete nutrient control. A basal P application was made of 150 kg P2O5/ha. Both experiments were harvested twice. Molasses-grass growth was seriously limited in the absence of calcium, and symptoms of calcium deficiency were observed in both growth periods. In addition, K deficiency in the two growth periods, and N deficiency in the second one, also limited molasses-grass growth. The omission of micronutrients or S had no detrimental effect on the grass growth. Nodulation and growth of C. pubescens were practicaly inhibited in the simultaneous absence of soil acidity amendment and Ca + Mg (as sulphate). The application of Ca + Mg to the noncorrected soil increased yield and nodulation only slightly. The omission of K, S or micronutrients had no effect on nodulation or growth of the leguminous plant. However, micronutrients contributed to increase N concentration in tops of Centrosema in the second harvest. |
id |
EMBRAPA-4_a20b10ada21e2180bf0f5e29dc21a04d |
---|---|
oai_identifier_str |
oai:ojs.seer.sct.embrapa.br:article/15636 |
network_acronym_str |
EMBRAPA-4 |
network_name_str |
Pesquisa Agropecuária Brasileira (Online) |
repository_id_str |
|
spelling |
Nutritional factors limiting growth of tropical forage species in two soils from "zona da mata", MG. I. Red-Yellow latosolFatores nutricionais limitantes ao crescimento de forrageiras tropicais em dois solos da zona da mata, MG. I. Latossolo vermelho-amareloMelinis minutiflora; Centrosema pubescens; fertilization; soil acidity; calcium; nitrogen and potassium; molasses grassMelinis minutiflora; Centrosema pubescens; adubação; acidez do solo; cálcio; nitrogênio e potássio; capim-gorduraTwo experiments were undertaken concurrently in a glasshouse to identify the nutritional factors which limit the growth of molasses grass (Melinis minutiflora Beauv.) and Centrosema pubescens Benth, in a Red-Yellow Latosol. A subtractive technique was used to compare the effect of the omission of: lime, N, K, S, Ca, Mg and micronutrients, against a complete nutrient control. A basal P application was made of 150 kg P2O5/ha. Both experiments were harvested twice. Molasses-grass growth was seriously limited in the absence of calcium, and symptoms of calcium deficiency were observed in both growth periods. In addition, K deficiency in the two growth periods, and N deficiency in the second one, also limited molasses-grass growth. The omission of micronutrients or S had no detrimental effect on the grass growth. Nodulation and growth of C. pubescens were practicaly inhibited in the simultaneous absence of soil acidity amendment and Ca + Mg (as sulphate). The application of Ca + Mg to the noncorrected soil increased yield and nodulation only slightly. The omission of K, S or micronutrients had no effect on nodulation or growth of the leguminous plant. However, micronutrients contributed to increase N concentration in tops of Centrosema in the second harvest.Dois experimentos foram conduzidos simultaneamente em casa-de-vegetação para verificar quais os fatores nutricionais que limitam o crescimento do capim-gordura (Melinis minutiflora Beauv.) e da Centrosema pubescens Benth, em um Latossolo Vermelho-Amarelo distrófico, álico. Através de diagnose por subtração, foi testado o efeito da omissão de cada um dos fatores: calagem, N, K, S, Ca, Mg e micronutrientes em relação a um tratamento contendo todos esses fatores (Completo). Foi feita uma adubação básica, com P correspondendo a 150 kg de P2O5/ha. Foram efetuados dois cortes em ambos os experimentos. O crescimento do capim-gordura foi seriamente limitado na ausência de Ca, tendo sido observados sintomas de deficiência desse elemento durante as duas fases de crescimento. Houve, também, para o capim-gordura, limitações por deficiência de K, que se manifestou nos dois períodos de crescimento; e de N, apenas no segundo período. A omissão de micronutrientes e de S não afetou o crescimento do capim-gordura. A nodulação e o crescimento da C. pubescens foram praticamente inibidos na ausência simultânea de corretivo da acidez do solo e de Ca e Mg. A aplicação de Ca e Mg, no solo não corrigido, minorou apenas ligeiramente esses efeitos. A omissão de K, S e micronutrientes não teve qualquer efeito sobre a nodulação e crescimento da leguminosa. Entretanto, os micronutrientes contribuíram para aumentar a concentração de N na parte aérea da C. pubescens, no segundo corte. Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCarvalho, Margarida Mesquita deOliveira, Fábio Teotônio Teixeira deSaraiva, Odilon FerreiraMartins, Carlos Eugênio2014-04-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15636Pesquisa Agropecuaria Brasileira; v.20, n.5, maio 1985; 519-528Pesquisa Agropecuária Brasileira; v.20, n.5, maio 1985; 519-5281678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15636/9643info:eu-repo/semantics/openAccess2014-04-17T11:51:02Zoai:ojs.seer.sct.embrapa.br:article/15636Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-17T11:51:02Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Nutritional factors limiting growth of tropical forage species in two soils from "zona da mata", MG. I. Red-Yellow latosol Fatores nutricionais limitantes ao crescimento de forrageiras tropicais em dois solos da zona da mata, MG. I. Latossolo vermelho-amarelo |
title |
Nutritional factors limiting growth of tropical forage species in two soils from "zona da mata", MG. I. Red-Yellow latosol |
spellingShingle |
Nutritional factors limiting growth of tropical forage species in two soils from "zona da mata", MG. I. Red-Yellow latosol Carvalho, Margarida Mesquita de Melinis minutiflora; Centrosema pubescens; fertilization; soil acidity; calcium; nitrogen and potassium; molasses grass Melinis minutiflora; Centrosema pubescens; adubação; acidez do solo; cálcio; nitrogênio e potássio; capim-gordura |
title_short |
Nutritional factors limiting growth of tropical forage species in two soils from "zona da mata", MG. I. Red-Yellow latosol |
title_full |
Nutritional factors limiting growth of tropical forage species in two soils from "zona da mata", MG. I. Red-Yellow latosol |
title_fullStr |
Nutritional factors limiting growth of tropical forage species in two soils from "zona da mata", MG. I. Red-Yellow latosol |
title_full_unstemmed |
Nutritional factors limiting growth of tropical forage species in two soils from "zona da mata", MG. I. Red-Yellow latosol |
title_sort |
Nutritional factors limiting growth of tropical forage species in two soils from "zona da mata", MG. I. Red-Yellow latosol |
author |
Carvalho, Margarida Mesquita de |
author_facet |
Carvalho, Margarida Mesquita de Oliveira, Fábio Teotônio Teixeira de Saraiva, Odilon Ferreira Martins, Carlos Eugênio |
author_role |
author |
author2 |
Oliveira, Fábio Teotônio Teixeira de Saraiva, Odilon Ferreira Martins, Carlos Eugênio |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Carvalho, Margarida Mesquita de Oliveira, Fábio Teotônio Teixeira de Saraiva, Odilon Ferreira Martins, Carlos Eugênio |
dc.subject.por.fl_str_mv |
Melinis minutiflora; Centrosema pubescens; fertilization; soil acidity; calcium; nitrogen and potassium; molasses grass Melinis minutiflora; Centrosema pubescens; adubação; acidez do solo; cálcio; nitrogênio e potássio; capim-gordura |
topic |
Melinis minutiflora; Centrosema pubescens; fertilization; soil acidity; calcium; nitrogen and potassium; molasses grass Melinis minutiflora; Centrosema pubescens; adubação; acidez do solo; cálcio; nitrogênio e potássio; capim-gordura |
description |
Two experiments were undertaken concurrently in a glasshouse to identify the nutritional factors which limit the growth of molasses grass (Melinis minutiflora Beauv.) and Centrosema pubescens Benth, in a Red-Yellow Latosol. A subtractive technique was used to compare the effect of the omission of: lime, N, K, S, Ca, Mg and micronutrients, against a complete nutrient control. A basal P application was made of 150 kg P2O5/ha. Both experiments were harvested twice. Molasses-grass growth was seriously limited in the absence of calcium, and symptoms of calcium deficiency were observed in both growth periods. In addition, K deficiency in the two growth periods, and N deficiency in the second one, also limited molasses-grass growth. The omission of micronutrients or S had no detrimental effect on the grass growth. Nodulation and growth of C. pubescens were practicaly inhibited in the simultaneous absence of soil acidity amendment and Ca + Mg (as sulphate). The application of Ca + Mg to the noncorrected soil increased yield and nodulation only slightly. The omission of K, S or micronutrients had no effect on nodulation or growth of the leguminous plant. However, micronutrients contributed to increase N concentration in tops of Centrosema in the second harvest. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-17 |
dc.type.none.fl_str_mv |
|
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://seer.sct.embrapa.br/index.php/pab/article/view/15636 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/15636 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/15636/9643 |
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 |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.20, n.5, maio 1985; 519-528 Pesquisa Agropecuária Brasileira; v.20, n.5, maio 1985; 519-528 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
_version_ |
1793416715804082176 |