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Registro Completo |
Biblioteca(s): |
Embrapa Algodão. |
Data corrente: |
30/07/2008 |
Data da última atualização: |
19/08/2008 |
Autoria: |
TOMQUELSKI, G. V.; MARTINS, G. L. M.; PAPA, F. |
Título: |
Efeito dos indutores de resistência acibenzolar-smetil e silício na biologia de Alabama argillacea (Lepidoptera: Noctuidae) em algodoeiro. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
Revista de Agricultura, v.82, n.2, p.170-175, 2007. |
Idioma: |
Português |
Palavras-Chave: |
curuquerê do algodoeiro; resistencia de plantas. |
Thesagro: |
Gossypium Hirsutum. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00576naa a2200169 a 4500 001 1264124 005 2008-08-19 008 2007 bl uuuu u00u1 u #d 100 1 $aTOMQUELSKI, G. V. 245 $aEfeito dos indutores de resistência acibenzolar-smetil e silício na biologia de Alabama argillacea (Lepidoptera$bNoctuidae) em algodoeiro. 260 $c2007 650 $aGossypium Hirsutum 653 $acuruquerê do algodoeiro 653 $aresistencia de plantas 700 1 $aMARTINS, G. L. M. 700 1 $aPAPA, F. 773 $tRevista de Agricultura$gv.82, n.2, p.170-175, 2007.
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Embrapa Algodão (CNPA) |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
31/10/2014 |
Data da última atualização: |
16/10/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
AMARAL, T. A.; ANDRADE, C. L. T.; DUARTE, J. O.; GARCIA, J. C.; GARCIA Y GARCIA, A.; SILVA, D. F.; ALBERNAZ, W. M.; HOOGENBOOM, G. |
Afiliação: |
CAMILO DE LELIS TEIXEIRA DE ANDRADE, CNPMS; JASON DE OLIVEIRA DUARTE, CNPMS; JOAO CARLOS GARCIA, CNPMS. |
Título: |
Nitrogen management strategies for smallholder maize production systems: yield and profitability variability. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
International Journal of Plant Production, v. 9, n. 1, p. 75-98, 2015. |
DOI: |
10.22069/ijpp.2015.1866 |
Idioma: |
Inglês |
Conteúdo: |
Maize (Zea mays L.) production requires large amounts of nitrogen (N) that directly affect production cost. Poultry litter can be used as an alternative source of N. To optimize its use, poultry litter requires technical and economic feasibility analyses. Crop simulation models have proven to be efficient tools to support this type of research. The objectives of this study were to determine yield and net return of maize production fertilized with both mineral fertilizer and poultry litter. High inter-annual variation was observed in simulated yield for all fertilization strategies evaluated. The higher the mineral N rate, the higher the y ield. Among the treatments fertilized with poultry litter the highest yield was obtained with a rate equivalent to 240 kg ha-1 of N. The trend of the economic net return for the different rates of mineral fertilizers was in the opposite direction of the trend in yield, i.e., the higher the rate of mineral fertilizer, the lower the economic return. Among the poultry litter fertilization strategies, the average economic net return increased up to a rate equivalent to 210 kg ha-1 of N, decreasing for higher rates. Poultry litter rates equivalent to 120 to 300 kg ha-1 of N, economically exceeded all the mineral fertilization strategies that were evaluated. Among all sources and rates, the highest net return was obtained for a rate of 210 kg ha-1 of N as poultry litter. Higher rates provided a lower net return and increased the likelihood of nitrate leaching MenosMaize (Zea mays L.) production requires large amounts of nitrogen (N) that directly affect production cost. Poultry litter can be used as an alternative source of N. To optimize its use, poultry litter requires technical and economic feasibility analyses. Crop simulation models have proven to be efficient tools to support this type of research. The objectives of this study were to determine yield and net return of maize production fertilized with both mineral fertilizer and poultry litter. High inter-annual variation was observed in simulated yield for all fertilization strategies evaluated. The higher the mineral N rate, the higher the y ield. Among the treatments fertilized with poultry litter the highest yield was obtained with a rate equivalent to 240 kg ha-1 of N. The trend of the economic net return for the different rates of mineral fertilizers was in the opposite direction of the trend in yield, i.e., the higher the rate of mineral fertilizer, the lower the economic return. Among the poultry litter fertilization strategies, the average economic net return increased up to a rate equivalent to 210 kg ha-1 of N, decreasing for higher rates. Poultry litter rates equivalent to 120 to 300 kg ha-1 of N, economically exceeded all the mineral fertilization strategies that were evaluated. Among all sources and rates, the highest net return was obtained for a rate of 210 kg ha-1 of N as poultry litter. Higher rates provided a lower net return and increased the likelihood of nit... Mostrar Tudo |
Palavras-Chave: |
Cama de frango; DSSAT. |
Thesagro: |
Rendimento; Rentabilidade; Zea mays. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02340naa a2200277 a 4500 001 1998917 005 2017-10-16 008 2015 bl uuuu u00u1 u #d 024 7 $a10.22069/ijpp.2015.1866$2DOI 100 1 $aAMARAL, T. A. 245 $aNitrogen management strategies for smallholder maize production systems$byield and profitability variability.$h[electronic resource] 260 $c2015 520 $aMaize (Zea mays L.) production requires large amounts of nitrogen (N) that directly affect production cost. Poultry litter can be used as an alternative source of N. To optimize its use, poultry litter requires technical and economic feasibility analyses. Crop simulation models have proven to be efficient tools to support this type of research. The objectives of this study were to determine yield and net return of maize production fertilized with both mineral fertilizer and poultry litter. High inter-annual variation was observed in simulated yield for all fertilization strategies evaluated. The higher the mineral N rate, the higher the y ield. Among the treatments fertilized with poultry litter the highest yield was obtained with a rate equivalent to 240 kg ha-1 of N. The trend of the economic net return for the different rates of mineral fertilizers was in the opposite direction of the trend in yield, i.e., the higher the rate of mineral fertilizer, the lower the economic return. Among the poultry litter fertilization strategies, the average economic net return increased up to a rate equivalent to 210 kg ha-1 of N, decreasing for higher rates. Poultry litter rates equivalent to 120 to 300 kg ha-1 of N, economically exceeded all the mineral fertilization strategies that were evaluated. Among all sources and rates, the highest net return was obtained for a rate of 210 kg ha-1 of N as poultry litter. Higher rates provided a lower net return and increased the likelihood of nitrate leaching 650 $aRendimento 650 $aRentabilidade 650 $aZea mays 653 $aCama de frango 653 $aDSSAT 700 1 $aANDRADE, C. L. T. 700 1 $aDUARTE, J. O. 700 1 $aGARCIA, J. C. 700 1 $aGARCIA Y GARCIA, A. 700 1 $aSILVA, D. F. 700 1 $aALBERNAZ, W. M. 700 1 $aHOOGENBOOM, G. 773 $tInternational Journal of Plant Production$gv. 9, n. 1, p. 75-98, 2015.
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