Fontes E Doses De Nitrogênio No Cultivo Do Milho Safrinha Em Sucessão À Soja

Kappes, Claudinei; Silva, Rayane Gabriel da

doi:10.18677/enciclopedia_biosfera_2016_057

Cited by 7 publications

(7 citation statements)

References 9 publications

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“…Characteristic defined in the V8 stage, showing a possible decrease in nitrogen loss and making this element available, resulting in an increase in the number of rows (CARMO et al, 2012). Kappes and Silva (2016) obtained values of average increase of 7.6% in grain productivity with the application of N, in relation to the treatment without application of N in coverage, regardless of the urea used. Kappes et al (2009), observed a significant increase in corn productivity with application of 70 kg ha-1 of N, regardless of the source used.…”

Section: Resultsmentioning

confidence: 79%

Urease inhibitor on performance of corn hybrids in second crop in Sinop-MT

Pereira¹,

Wiest²,

Fiorini³

et al. 2020

Sci. Elec. Arch.

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Nitrogen is the most demanded element with the most complex management and with the highest responses in productivity in the corn crop, of the principal source of nitrogen supplies, but the urea is inefficient due to its volatilization. The objective of this work was to evaluate the agronomic performance and the efficiency of the urease inhibitor in formulations containing urea, applied in five different commercial corn hybrids in Sinop - MT. The experimental design was in randomized blocks, in a 3 x 5 factorial scheme with three replications. The first factor consisted of three cover fertilizations: control (without application of fertilizer); fertilization with 250 kg ha-1 of urea and fertilization with 250 kg ha-1 of urea with the presence of the urease inhibitor (UREMAX®) NBPT. The second factor was five corn hybrids: 2B433, DKB255, DKB335, NS45 and SYN522. It was found that all hybrids had greater growth and productivity when they received the urease inhibitor, in relation to the treatment without coverage. The hybrids DKB 255, 2B433 and SYN 522, the treatment with UREMAX® reached the highest productivity. The most prominent hybrid in productivity was DKB 255, which reached 9600 kg ha-1, with UREMAX® in cover fertilization, about 31% more than the treatment without urea coverage, and with gains of 18% in relation to urea.

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Section: Resultsmentioning

confidence: 79%

Urease inhibitor on performance of corn hybrids in second crop in Sinop-MT

Pereira¹,

Wiest²,

Fiorini³

et al. 2020

Sci. Elec. Arch.

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“…Some single-crosses needs larger N levels to respond, justifying the difference between them (FORNASIERE FILHO, 2007). Kappes and Silva (2016) obtained average increases of 7.6 % on grain yield with the N application, compared to the witness without N on side-dress, regardless the urea source used. Kappes et al (2009) observed significant increases in grain yield with the application of 70 kg ha -1 of N, regardless of the source used.…”

Section: Source: Elaborated By Authors (2019)mentioning

confidence: 80%

Desempenho de híbridos de milho safrinha em função de fontes de ureia na adubação de cobertura

Wiest

Pereira

Fiorini

et al. 2021

R. Agrogeoambiental

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Nitrogen is the most required element by the maize crop and suffers the greatest losses due to its inappropriate management, mainly when the urea is used as a source of nitrogen. The objective of this work was to evaluate the efficiency of urea sources, with or without urease inhibitor, in sidedress fertilization of commercial single-cross in off-season in Sinop/MT. The experimental design was completely randomized blocks, in factorial scheme 3 x 5, with 3 replications. The first factorwas three side-dress fertilization: witness (without fertilizer); fertilization with 250 kg ha-1 of urea and fertilization with 250 kg ha-1 of urea in the presence of urease inhibitor (UREMAX®) NBPT. The second factor was five single-crosses: 2B433, DKB255, DKB335, NS45, and SYN522. Vegetative development and yield characteristics were evaluated. The Nitrogen sources did not affect the plant height, stem diameter, and foliar area index, only the chlorophyll content in the leaves. For the yieldcomponents, there is an effect of fertilization on the number of grain rows and grain yield. The singlecrosses differ among them in vegetative development and yield characteristics. The Nitrogen in sidedress, in the conditions of this study, using the urea with urease inhibitor, increased the fertilization efficiency and raised the grain yield. The single-crosses DKB 255, 2B433, and SYN 522, with the treatment based on UREMAX®, reached the highest yield.

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“…Já para a característica DE, as variedades BR 106, Caimbé e Porto Walter Tradicional apresentaram maior diâmetro, com médias 4,595 cm, 4,623 cm e 4,544 cm respectivamente. O CE é uma característica que apresenta alta herdabilidade, assim como o número de fileira por espiga (Tabela 2), enquanto que o DE pode apresentar variabilidade em função do ambiente e do manejo empregado (Brachtvogel, 2008;Fernandes et al, 2017;Kappes et al, 2009;Rizzardo, 2019).…”

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Desempenho agronômico de variedades crioulas de milho na região do Vale do Juruá, AC

Da Cruz,

De Souza,

De Castro

et al. 2024

CLCS

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O objetivo desse trabalho foi avaliar o desempenho agronômico de variedades crioulas de milho na semeadura safrinha na região do Vale do Juruá, Acre. O ensaio foi realizado no município de Mâncio Lima, AC. O delineamento experimental adotado foi o de blocos casualizados com quatro repetições. Os tratamentos consistiram em oito variedades de milho, sendo duas comerciais e seis tradicionais. As variáveis morfológicas analisadas foram: altura da planta; diâmetro do colmo; comprimento da espiga e diâmetro da espiga. Os componentes de produção avaliados foram: massa da matéria seca da parte aérea; número de grãos por espiga; massa do grão; e rendimento. Os dados coletados foram submetidos à análise de variância (teste F) ao nível de 5% de probabilidade e as médias comparadas pelo teste de Scott-Knott (p<0,05). As variedades crioulas coletas na Regional do Vale do Juruá apresentam características morfológicas típicas de variedades tradicionais não melhoradas, com maior altura da planta, colmo volumoso e alta produção de fitomassa. Todas as variedades tradicionais testadas apresentaram o mesmo desempenho agronômico, com igual rendimento de grãos das variedades comerciais, e com média superior a registrada para o Acre no mesmo ano e safra, indicando que as variedades crioulas têm potencial para estudo em programas de desenvolvimento de variedades melhoradas.

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Fontes E Doses De Nitrogênio No Cultivo Do Milho Safrinha Em Sucessão À Soja

Cited by 7 publications

References 9 publications

Urease inhibitor on performance of corn hybrids in second crop in Sinop-MT

Urease inhibitor on performance of corn hybrids in second crop in Sinop-MT

Desempenho de híbridos de milho safrinha em função de fontes de ureia na adubação de cobertura

Desempenho agronômico de variedades crioulas de milho na região do Vale do Juruá, AC

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