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Registros recuperados : 8 | |
2. | | GAVA, G. J. de C.; TRIVELIN, P. C. O.; OLIVEIRA, M. W. de; PENATTI, C. P. Crescimento e acúmulo de nitrogênio em cana-de-açucar cultivada em solo coberto com palhada. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 36, n. 11, p. 1347-1354, nov. 2001 Título em inglês: Growth and accumulation of nitrogen by sugarcane cultivated in soil covered with cane trash. Biblioteca(s): Embrapa Unidades Centrais. |
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3. | | GAVA, G. J. de C.; TRIVELIN, P. C. O.; VITTI, A. C.; OLIVEIRA, M. W. de. Urea and sugarcane straw nitrogen balance in a soil-sugarcane crop system. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 40, n. 7, p. 689-695, jul. 2005 Título em português: Balanço do nitrogênio da uréia e da palha de cana no sistema solo-cana-de-açúcar. Biblioteca(s): Embrapa Unidades Centrais. |
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4. | | PAIVA, E. A. S. e; PICANCO, M. C.; CORTE, M. L.; GAVA, G. J. de C. Variacao da toxidez de deltametrina e metamidofos a Brevicoryne brassicae (L.) (Homoptera: Aphididae) em funcao de diferentes temperaturas do ar. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 15., 1995, Caxambu. Resumos... Lavras : SEB / ESAL, 1995. p.493. Resumos do VI Encontro Nacional de Fitossanitaristas e II Simposio Integrado de Manejo de Pragas, Caxambu, 1995. Biblioteca(s): Embrapa Hortaliças. |
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5. | | TRIVELIN, P. C. O.; OLIVEIRA, M. W. de; VITTI, A. C.; GAVA, G. J. de C.; BENDASSOLLI, J. A. Perdas do nitrogênio da uréia no sistema solo-planta em dois ciclos de cana-de-açúcar. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 37, n. 2, p. 193-201, fev. 2002 Título em inglês: Nitrogen losses of applied urea in the soil-plant system during two sugar cane cycles. Biblioteca(s): Embrapa Unidades Centrais. |
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7. | | GAVA, G. J. de C.; SILVA, M. de A.; SILVA, R. C. da; JERONIMO, E. M.; CRUZ, J. C. S.; KÖLLN, O. T. Produtividade de três cultivares de cana-de-açúcar sob manejos de sequeiro e irrigado por gotejamento. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 15, n. 3, p. 250-255, mar., 2011. Biblioteca(s): Embrapa Algodão. |
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8. | | PANNUTI, L. E. da R.; BALDIN, E. L. L.; GAVA, G. J. de C.; KOLLN, O. T.; CRUZ, J. C. S. Danos do complexo broca-podridão à produtividade e à qualidade da cana-de-açúcar fertirrigada com doses de nitrogênio. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 48, n. 4, p. 381-387, abr. 2013. Título em inglês: Damages caused by the borer?rot complex to the productivity and quality of sugarcane fertigated with nitrogen doses. Biblioteca(s): Embrapa Unidades Centrais. |
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Registros recuperados : 8 | |
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Registro Completo
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
25/08/2005 |
Data da última atualização: |
20/08/2018 |
Autoria: |
GAVA, G. J. de C.; TRIVELIN, P. C. O.; VITTI, A. C.; OLIVEIRA, M. W. de. |
Afiliação: |
Glauber José de Castro Gava, Agência Paulista de Tecnologia dos Agronegócios - Apta; Paulo Cesar Ocheuze Trivelin, Universidade de São Paulo - Usp/Centro de Energia Nuclear na Agricultura - Cena; André Cesar Vitti, Universidade de São Paulo - Usp/Centro de Energia Nuclear na Agricultura - Cena; Mauro Wagner de Oliveira, Universidade Federal de Alagoas - UFAL. |
Título: |
Urea and sugarcane straw nitrogen balance in a soil-sugarcane crop system. |
Ano de publicação: |
2005 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 40, n. 7, p. 689-695, jul. 2005 |
Idioma: |
Inglês |
Notas: |
Título em português: Balanço do nitrogênio da uréia e da palha de cana no sistema solo-cana-de-açúcar. |
Conteúdo: |
The objectives of this study were to evaluate nitrogen utilization by sugarcane ratoon from two sources, applied urea and sugarcane straw covering soil surface (trash blanket), besides the recovery of N from both sources in the soil-plant system. The following treatments were established in a randomized block design with four replicates: T1, vinasse-urea (100 kg ha-1 of urea-N) mixture applied on the total area of the soil covered with cane trash labeled with 15N; T2, vinasse-urea mixture (urea labeled with 15N; 100 kg ha-1 of urea-N) applied on the total area of the soil covered with non-labeled sugarcane trash; and T3, urea-15N (100 kg ha-1 of urea-N) applied in furrows at both sides of cane rows, with previous surface application of vinasse, onto soil without trash covering. The vinasse was applied at a rate of 100 m3 ha-1 in all treatments. The experiment was carried out on a Yellow Red Podzolic soil (Paleudalf), from October 1997 to August 1998, in Piracicaba, SP, Brazil. The nitrogen use efficiency of urea by the sugarcane ratoon was 21%, while that of the sugarcane straw was 9%. The main contributions of N from sugarcane trash, during one cycle, are the preservation and increase of the organic N in soil. The tendency for a lower accumulation of urea-N in the sugarcane plant, in the soil surface covered with sugarcane residue, was compensated by the assimilation of N from trash mineralization. Nitrogen derived from cane trash was more available to plants in the second half of the ratoon cycle. MenosThe objectives of this study were to evaluate nitrogen utilization by sugarcane ratoon from two sources, applied urea and sugarcane straw covering soil surface (trash blanket), besides the recovery of N from both sources in the soil-plant system. The following treatments were established in a randomized block design with four replicates: T1, vinasse-urea (100 kg ha-1 of urea-N) mixture applied on the total area of the soil covered with cane trash labeled with 15N; T2, vinasse-urea mixture (urea labeled with 15N; 100 kg ha-1 of urea-N) applied on the total area of the soil covered with non-labeled sugarcane trash; and T3, urea-15N (100 kg ha-1 of urea-N) applied in furrows at both sides of cane rows, with previous surface application of vinasse, onto soil without trash covering. The vinasse was applied at a rate of 100 m3 ha-1 in all treatments. The experiment was carried out on a Yellow Red Podzolic soil (Paleudalf), from October 1997 to August 1998, in Piracicaba, SP, Brazil. The nitrogen use efficiency of urea by the sugarcane ratoon was 21%, while that of the sugarcane straw was 9%. The main contributions of N from sugarcane trash, during one cycle, are the preservation and increase of the organic N in soil. The tendency for a lower accumulation of urea-N in the sugarcane plant, in the soil surface covered with sugarcane residue, was compensated by the assimilation of N from trash mineralization. Nitrogen derived from cane trash was more available to plants in the second ... Mostrar Tudo |
Palavras-Chave: |
crop residue; eficiência de uso de nitrogênio; fertilizante-15N; fertilizer-15N; N recovery; nitrogen use efficiency; recuperação de N; resíduo de colheita. |
Thesagro: |
Mineralização. |
Thesaurus NAL: |
mineralization. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/107723/1/Urea.pdf
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Marc: |
LEADER 02480naa a2200289 a 4500 001 1115577 005 2018-08-20 008 2005 bl uuuu u00u1 u #d 100 1 $aGAVA, G. J. de C. 245 $aUrea and sugarcane straw nitrogen balance in a soil-sugarcane crop system. 260 $c2005 500 $aTítulo em português: Balanço do nitrogênio da uréia e da palha de cana no sistema solo-cana-de-açúcar. 520 $aThe objectives of this study were to evaluate nitrogen utilization by sugarcane ratoon from two sources, applied urea and sugarcane straw covering soil surface (trash blanket), besides the recovery of N from both sources in the soil-plant system. The following treatments were established in a randomized block design with four replicates: T1, vinasse-urea (100 kg ha-1 of urea-N) mixture applied on the total area of the soil covered with cane trash labeled with 15N; T2, vinasse-urea mixture (urea labeled with 15N; 100 kg ha-1 of urea-N) applied on the total area of the soil covered with non-labeled sugarcane trash; and T3, urea-15N (100 kg ha-1 of urea-N) applied in furrows at both sides of cane rows, with previous surface application of vinasse, onto soil without trash covering. The vinasse was applied at a rate of 100 m3 ha-1 in all treatments. The experiment was carried out on a Yellow Red Podzolic soil (Paleudalf), from October 1997 to August 1998, in Piracicaba, SP, Brazil. The nitrogen use efficiency of urea by the sugarcane ratoon was 21%, while that of the sugarcane straw was 9%. The main contributions of N from sugarcane trash, during one cycle, are the preservation and increase of the organic N in soil. The tendency for a lower accumulation of urea-N in the sugarcane plant, in the soil surface covered with sugarcane residue, was compensated by the assimilation of N from trash mineralization. Nitrogen derived from cane trash was more available to plants in the second half of the ratoon cycle. 650 $amineralization 650 $aMineralização 653 $acrop residue 653 $aeficiência de uso de nitrogênio 653 $afertilizante-15N 653 $afertilizer-15N 653 $aN recovery 653 $anitrogen use efficiency 653 $arecuperação de N 653 $aresíduo de colheita 700 1 $aTRIVELIN, P. C. O. 700 1 $aVITTI, A. C. 700 1 $aOLIVEIRA, M. W. de 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 40, n. 7, p. 689-695, jul. 2005
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