|
|
Registro Completo |
Biblioteca(s): |
Embrapa Algodão. |
Data corrente: |
10/10/2002 |
Data da última atualização: |
10/10/2002 |
Autoria: |
SIMPAIO, S. C.; DENICULI, MARTINEZ, M. A. |
Título: |
Perda de carga continua em tubulacoes conduzindo agua residuaria da suinocultura. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
Revista Brasileira de Engenharia Agricola e Ambiental, v.5, n.3, p391-396, 2001. |
Idioma: |
Português |
Palavras-Chave: |
Effluent; Efluente; Fluid; Fluido nao newtoniano; Hed losses; Non-newtonian; Perda de carga. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00609naa a2200205 a 4500 001 1272495 005 2002-10-10 008 2001 bl uuuu u00u1 u #d 100 1 $aSIMPAIO, S. C. 245 $aPerda de carga continua em tubulacoes conduzindo agua residuaria da suinocultura. 260 $c2001 653 $aEffluent 653 $aEfluente 653 $aFluid 653 $aFluido nao newtoniano 653 $aHed losses 653 $aNon-newtonian 653 $aPerda de carga 700 1 $aDENICULI, MARTINEZ, M. A. 773 $tRevista Brasileira de Engenharia Agricola e Ambiental$gv.5, n.3, p391-396, 2001.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Algodão (CNPA) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Meio-Norte. Para informações adicionais entre em contato com cpamn.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Caprinos e Ovinos; Embrapa Meio-Norte. |
Data corrente: |
31/07/2023 |
Data da última atualização: |
23/08/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 4 |
Autoria: |
ARAÚJO, M. D. M.; PRIMO, A. A.; FERNANDES, J. K. S.; VIEIRA, L. V.; CLARK, M. V. G.; GUEDES, F. L.; POMPEU, R. C. F. F.; SAGRILO, E.; SOUZA, H. A. de. |
Afiliação: |
MARIA DIANA MELO ARAÚJO, STATE UNIVERSITY OF ACARAÚ VALLEY; ANACLAUDIA ALVES PRIMO, FEDERAL UNIVERSITY OF CEARÁ; JOSE KIOMA SOUSA FERNANDES, STATE UNIVERSITY OF ACARAÚ; LUCAS VASCONCELOS VIEIRA, SCHOOL OF AGRICULTURE SCIENCES, SÃO PAULO STATE UNIVERSITY; MARCUS VINÍCIUS GUIMARÃES CLARK, FEDERAL UNIVERSITY OF PIAUÍ; FERNANDO LISBOA GUEDES, CNPC; ROBERTO CLAUDIO FERNANDES F POMPEU, CNPC; EDVALDO SAGRILO, CPAMN; HENRIQUE ANTUNES DE SOUZA, CPAMN. |
Título: |
Different sources of nitrogen fertilizer in rainfed maize grown in a semiarid environment. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Arid Land Research and Management, p. 1-20, Jul. 2023. Published online. |
DOI: |
https://doi.org/10.1080/15324982.2023.2240745 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Although nitrogen is the nutrient most required by maize, doses of N lower than those recommended are applied to maize grown in semiarid environments, which limits the achievement of profitable yields. The objective of this study was to evaluate changes in soil fertility, nutritional status and dry matter production of maize plants fertilized with organic and mineral fertilizers in a semiarid region. A factorial experiment was carried out in Sobral, Ceará state, Brazil, in a randomized block design. The factors were two N sources (organic compost and urea), and four N rates: 27.5, 55, 110 and 165 kg ha−1, with three replications. We assessed variables associated with soil fertility, plant nutritional status, chlorophyll content, grain yield and total dry matter production. The highest rates of organic compost resulted in the highest levels of P (17.7 mg dm−3) and K (102.2 mg dm−3) in soil when compared to the control (7.7 and 69.0 mg dm−3, respectively). However, organic compost rates below 110 kg ha−1 of N-equivalent fertilizer were not enough to supply the plants’ demand for P and K. Low N rates promoted a decrease in soil inorganic N in the second year of application. Applying urea to maize plants led to greater dry matter production than organic compost in the second consecutive crop season. The use of organic compost at rates lower than 110 kg ha−1 of N-equivalent fertilizer decreases soil fertility and has no impact on maize dry matter production. MenosAbstract: Although nitrogen is the nutrient most required by maize, doses of N lower than those recommended are applied to maize grown in semiarid environments, which limits the achievement of profitable yields. The objective of this study was to evaluate changes in soil fertility, nutritional status and dry matter production of maize plants fertilized with organic and mineral fertilizers in a semiarid region. A factorial experiment was carried out in Sobral, Ceará state, Brazil, in a randomized block design. The factors were two N sources (organic compost and urea), and four N rates: 27.5, 55, 110 and 165 kg ha−1, with three replications. We assessed variables associated with soil fertility, plant nutritional status, chlorophyll content, grain yield and total dry matter production. The highest rates of organic compost resulted in the highest levels of P (17.7 mg dm−3) and K (102.2 mg dm−3) in soil when compared to the control (7.7 and 69.0 mg dm−3, respectively). However, organic compost rates below 110 kg ha−1 of N-equivalent fertilizer were not enough to supply the plants’ demand for P and K. Low N rates promoted a decrease in soil inorganic N in the second year of application. Applying urea to maize plants led to greater dry matter production than organic compost in the second consecutive crop season. The use of organic compost at rates lower than 110 kg ha−1 of N-equivalent fertilizer decreases soil... Mostrar Tudo |
Palavras-Chave: |
Adubação orgânica; Região semiárida. |
Thesagro: |
Estado Nutricional; Fertilidade do Solo; Nutrição Vegetal; Zea Mays. |
Thesaurus NAL: |
Brazil; Dry matter content; Nutritional status; Plant nutrition; Semiarid zones; Soil fertility. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 02685naa a2200373 a 4500 001 2155520 005 2023-08-23 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1080/15324982.2023.2240745$2DOI 100 1 $aARAÚJO, M. D. M. 245 $aDifferent sources of nitrogen fertilizer in rainfed maize grown in a semiarid environment.$h[electronic resource] 260 $c2023 520 $aAbstract: Although nitrogen is the nutrient most required by maize, doses of N lower than those recommended are applied to maize grown in semiarid environments, which limits the achievement of profitable yields. The objective of this study was to evaluate changes in soil fertility, nutritional status and dry matter production of maize plants fertilized with organic and mineral fertilizers in a semiarid region. A factorial experiment was carried out in Sobral, Ceará state, Brazil, in a randomized block design. The factors were two N sources (organic compost and urea), and four N rates: 27.5, 55, 110 and 165 kg ha−1, with three replications. We assessed variables associated with soil fertility, plant nutritional status, chlorophyll content, grain yield and total dry matter production. The highest rates of organic compost resulted in the highest levels of P (17.7 mg dm−3) and K (102.2 mg dm−3) in soil when compared to the control (7.7 and 69.0 mg dm−3, respectively). However, organic compost rates below 110 kg ha−1 of N-equivalent fertilizer were not enough to supply the plants’ demand for P and K. Low N rates promoted a decrease in soil inorganic N in the second year of application. Applying urea to maize plants led to greater dry matter production than organic compost in the second consecutive crop season. The use of organic compost at rates lower than 110 kg ha−1 of N-equivalent fertilizer decreases soil fertility and has no impact on maize dry matter production. 650 $aBrazil 650 $aDry matter content 650 $aNutritional status 650 $aPlant nutrition 650 $aSemiarid zones 650 $aSoil fertility 650 $aEstado Nutricional 650 $aFertilidade do Solo 650 $aNutrição Vegetal 650 $aZea Mays 653 $aAdubação orgânica 653 $aRegião semiárida 700 1 $aPRIMO, A. A. 700 1 $aFERNANDES, J. K. S. 700 1 $aVIEIRA, L. V. 700 1 $aCLARK, M. V. G. 700 1 $aGUEDES, F. L. 700 1 $aPOMPEU, R. C. F. F. 700 1 $aSAGRILO, E. 700 1 $aSOUZA, H. A. de 773 $tArid Land Research and Management, p. 1-20, Jul. 2023. Published online.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|