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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
03/12/2018 |
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Data da última atualização: |
25/02/2019 |
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Autoria: |
GARCIA FUENTES, L. F.; SOUZA, L. C. F. de; SERRA, A. P.; JERUSA RECH; VITORINO, A. C. T. |
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Afiliação: |
Luis Felipe Garcia Fuentes, Universidade Federal da Grande Dourados - UFGD/Faculdade de Agronomia; Luiz Carlos Ferreira de Souza, Universidade Federal da Grande Dourados - UFGD/Faculdade de Agronomia; ADEMAR PEREIRA SERRA, CNPGC; Jerusa Rech, Universidade Federal da Grande Dourados - UFGD/Faculdade de Agronomia; Antonio Carlos Tadeu Vitorino, Universidade Federal da Grande Dourados - UFGD/Faculdade de Agronomia. |
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Título: |
Corn agronomic traits and recovery of nitrogen from fertilizer during crop season and off-season. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 53, n. 10, p.1158-1166, Oct. 2018. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Características agronômicas do milho e recuperação de nitrogênio do fertilizante durante a safra e a safrinha. |
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Conteúdo: |
The objective of this work was to evaluate corn agronomic traits in a cultivation subjected to different N rates, during the fall?winter (off-season) and spring?summer crop seasons, and N recovery from fertilizer. The experiment was set up in a randomized complete block design with four replicates, in a 5x2 factorial arrangement, with the following treatments: five N topdressing rates ? 0, 30, 60, 90, and 120 kg ha-1?, using urea as source; and two crop seasons, fall?winter and spring?summer. The following variables were determined: plant height, height of the first ear insertion, number of grains per ear, diameter and length of ear, 1,000-grain weight, N concentration in the leaves and grains, grain-protein concentration, grain yield, N recovery from fertilizer, and soil-N supply. Nitrogen rates in the fertilizer in the fall?winter season had no effect on grain yield, although corn agronomic traits showed a greater reliance on fertilizer-N rates in that season than in the spring?summer, which is a season associated to a greater capacity of soil-N supply to plants. The quantification of soil-N supply enabled knowing the nutrient dynamics during the fall?winter and the spring?summer seasons, which may be useful to guide N fertilization of corn. |
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Palavras-Chave: |
N-fertilizer management; Soil-N supply. |
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Thesagro: |
Fertilidade do Solo; Zea Mays. |
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Thesaurus Nal: |
Plant nutrition; Soil fertility. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/187577/1/Corn-agronomic-traits.pdf
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Marc: |
LEADER 02178naa a2200253 a 4500
001 2100583
005 2019-02-25
008 2018 bl uuuu u00u1 u #d
100 1 $aGARCIA FUENTES, L. F.
245 $aCorn agronomic traits and recovery of nitrogen from fertilizer during crop season and off-season.$h[electronic resource]
260 $c2018
500 $aTítulo em português: Características agronômicas do milho e recuperação de nitrogênio do fertilizante durante a safra e a safrinha.
520 $aThe objective of this work was to evaluate corn agronomic traits in a cultivation subjected to different N rates, during the fall?winter (off-season) and spring?summer crop seasons, and N recovery from fertilizer. The experiment was set up in a randomized complete block design with four replicates, in a 5x2 factorial arrangement, with the following treatments: five N topdressing rates ? 0, 30, 60, 90, and 120 kg ha-1?, using urea as source; and two crop seasons, fall?winter and spring?summer. The following variables were determined: plant height, height of the first ear insertion, number of grains per ear, diameter and length of ear, 1,000-grain weight, N concentration in the leaves and grains, grain-protein concentration, grain yield, N recovery from fertilizer, and soil-N supply. Nitrogen rates in the fertilizer in the fall?winter season had no effect on grain yield, although corn agronomic traits showed a greater reliance on fertilizer-N rates in that season than in the spring?summer, which is a season associated to a greater capacity of soil-N supply to plants. The quantification of soil-N supply enabled knowing the nutrient dynamics during the fall?winter and the spring?summer seasons, which may be useful to guide N fertilization of corn.
650 $aPlant nutrition
650 $aSoil fertility
650 $aFertilidade do Solo
650 $aZea Mays
653 $aN-fertilizer management
653 $aSoil-N supply
700 1 $aSOUZA, L. C. F. de
700 1 $aSERRA, A. P.
700 1 $aJERUSA RECH
700 1 $aVITORINO, A. C. T.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 53, n. 10, p.1158-1166, Oct. 2018.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
28/11/2023 |
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Data da última atualização: |
28/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CORREIA, N. M. |
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Afiliação: |
NUBIA MARIA CORREIA, CPAC. |
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Título: |
Interference of glyphosate-resistant conyza sumatrensis in soybean crops in Central Brazil. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Advances in weed science, v. 41, e020230071, p. 1-11, 2023. |
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Páginas: |
p. 1-11. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Background: Studies on losses caused by competition of soybean with Sumatran fleabane plants in the Cerrado biome are scarce and need to be conducted to assist in choosing more effective weed management strategies. Objective: Evaluate the effect of glyphosate-resistant Sumatran fleabane plants on soybean and describe their dynamics regarding emergence of new plants and mortality of adult plants in the hot summer rainy season in the Cerrado biome. Methods: Three field experiments were conducted at the Embrapa Cerrados site (Brasília, DF, Brazil) over two years, using a randomized block experimental design with ten treatments, six competition periods and four controls, and four replications. The treatments consisted of periods of competition of soybean with Sumatran fleabane plants in the plots: until 10 (0–10), 20 (0–20), 30 (0–30), 45 (0–45), and 60 (0–60) days after soybean sowing (DAS) and until soybean harvest. Four control treatments were used to evaluate the dynamics of Sumatran fleabane and soybean plants, also considering other emerged weed species. Evaluations were carried out on Sumatran fleabane plants and soybean. Results: None of the competition periods negatively affected the establishment and development of soybean. The Sumatran fleabane plant cycle ended from 45 to 60 DAS. Only one Sumatran fleabane emergence period (approximately 24 DAS) occurred throughout the soybean cycle, these plants died due to shading by the crop. Conclusions: Sumatran fleabane plant densities of 13 to 23 plants m-2 at the soybean sowing did not interfere with the crop establishment and development. MenosAbstract: Background: Studies on losses caused by competition of soybean with Sumatran fleabane plants in the Cerrado biome are scarce and need to be conducted to assist in choosing more effective weed management strategies. Objective: Evaluate the effect of glyphosate-resistant Sumatran fleabane plants on soybean and describe their dynamics regarding emergence of new plants and mortality of adult plants in the hot summer rainy season in the Cerrado biome. Methods: Three field experiments were conducted at the Embrapa Cerrados site (Brasília, DF, Brazil) over two years, using a randomized block experimental design with ten treatments, six competition periods and four controls, and four replications. The treatments consisted of periods of competition of soybean with Sumatran fleabane plants in the plots: until 10 (0–10), 20 (0–20), 30 (0–30), 45 (0–45), and 60 (0–60) days after soybean sowing (DAS) and until soybean harvest. Four control treatments were used to evaluate the dynamics of Sumatran fleabane and soybean plants, also considering other emerged weed species. Evaluations were carried out on Sumatran fleabane plants and soybean. Results: None of the competition periods negatively affected the establishment and development of soybean. The Sumatran fleabane plant cycle ended from 45 to 60 DAS. Only one Sumatran fleabane emergence period (approximately 24 DAS) occurred throughout the soybean cycle, these plants died due to shading by the crop. Conclusions: Sumatran fleaba... Mostrar Tudo |
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Thesagro: |
Cerrado; Erva Daninha; Plantio Direto; Resistência; Soja. |
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Thesaurus NAL: |
Soybeans. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158809/1/Nubia-interference-of-glyphosate-resistant-cozyza.pdf
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Marc: |
LEADER 02218naa a2200205 a 4500
001 2158809
005 2023-11-28
008 2023 bl uuuu u00u1 u #d
100 1 $aCORREIA, N. M.
245 $aInterference of glyphosate-resistant conyza sumatrensis in soybean crops in Central Brazil.$h[electronic resource]
260 $c2023
300 $ap. 1-11.
520 $aAbstract: Background: Studies on losses caused by competition of soybean with Sumatran fleabane plants in the Cerrado biome are scarce and need to be conducted to assist in choosing more effective weed management strategies. Objective: Evaluate the effect of glyphosate-resistant Sumatran fleabane plants on soybean and describe their dynamics regarding emergence of new plants and mortality of adult plants in the hot summer rainy season in the Cerrado biome. Methods: Three field experiments were conducted at the Embrapa Cerrados site (Brasília, DF, Brazil) over two years, using a randomized block experimental design with ten treatments, six competition periods and four controls, and four replications. The treatments consisted of periods of competition of soybean with Sumatran fleabane plants in the plots: until 10 (0–10), 20 (0–20), 30 (0–30), 45 (0–45), and 60 (0–60) days after soybean sowing (DAS) and until soybean harvest. Four control treatments were used to evaluate the dynamics of Sumatran fleabane and soybean plants, also considering other emerged weed species. Evaluations were carried out on Sumatran fleabane plants and soybean. Results: None of the competition periods negatively affected the establishment and development of soybean. The Sumatran fleabane plant cycle ended from 45 to 60 DAS. Only one Sumatran fleabane emergence period (approximately 24 DAS) occurred throughout the soybean cycle, these plants died due to shading by the crop. Conclusions: Sumatran fleabane plant densities of 13 to 23 plants m-2 at the soybean sowing did not interfere with the crop establishment and development.
650 $aSoybeans
650 $aCerrado
650 $aErva Daninha
650 $aPlantio Direto
650 $aResistência
650 $aSoja
773 $tAdvances in weed science$gv. 41, e020230071, p. 1-11, 2023.
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Embrapa Cerrados (CPAC) |
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