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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Hortaliças; Embrapa Solos. |
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Data corrente: |
04/01/1996 |
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Data da última atualização: |
14/09/2001 |
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Autoria: |
MESQUITA FILHO, M. V. de. |
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Título: |
Studies on the tolerance of crop plants to acid soils. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
[S.l.]: Shizuoka University, 1978. |
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Páginas: |
46p. |
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Idioma: |
Inglês |
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Notas: |
Master Dissertation. |
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Conteúdo: |
It is very difficult to determine certainly the precise factor which is responsible for the poor growth of a specific plant under e given acid soil from the fact that numerous soil parameters change as the acidity is altered. In the present paper, predominant factors for poor growth of three kinds of crop plants on acid soils different in acidity was determined by the method that to control plot a complete rate of mineral elements was omitted. The results obtained were as follows: 1. Good growth of radish plants in comparison to the other two plants was considered to be due to a lower sensitivity to aluminum toxicity and higher ability to accumulate mineral elements from kuroboku and its subsurface soils. 2. The poorer growth to tomato plants than egg plants was mainly based upon higher sensitivity to aluminum toxicity. 3. The predominant factors for poor growth were potassium, magnesium and calcium deficiencies in radish plants, potassium, phosphorus and nitrogen deficiencies in egg plants and aluminum toxicity, calcium and molybdenum deficiencies in tomato plants in kuroboku soil. 4. The predominant factors for poor growth of these plants were respectively nitrogen and phosphorus deficiencies in kuroboku subsurface soil. |
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Palavras-Chave: |
Acid; Plant; Plant soil relations; Plantas; Solos; Tolerance; Tolerancia. |
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Thesagro: |
Acidez; Ácido; Planta; Relação Solo-Planta; Solo; Solo Ácido. |
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Thesaurus Nal: |
acid soils; acidity; soil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02008nam a2200325 a 4500
001 1560199
005 2001-09-14
008 1978 bl uuuu m 00u1 u #d
100 1 $aMESQUITA FILHO, M. V. de
245 $aStudies on the tolerance of crop plants to acid soils.
260 $a[S.l.]: Shizuoka University$c1978
300 $a46p.
500 $aMaster Dissertation.
520 $aIt is very difficult to determine certainly the precise factor which is responsible for the poor growth of a specific plant under e given acid soil from the fact that numerous soil parameters change as the acidity is altered. In the present paper, predominant factors for poor growth of three kinds of crop plants on acid soils different in acidity was determined by the method that to control plot a complete rate of mineral elements was omitted. The results obtained were as follows: 1. Good growth of radish plants in comparison to the other two plants was considered to be due to a lower sensitivity to aluminum toxicity and higher ability to accumulate mineral elements from kuroboku and its subsurface soils. 2. The poorer growth to tomato plants than egg plants was mainly based upon higher sensitivity to aluminum toxicity. 3. The predominant factors for poor growth were potassium, magnesium and calcium deficiencies in radish plants, potassium, phosphorus and nitrogen deficiencies in egg plants and aluminum toxicity, calcium and molybdenum deficiencies in tomato plants in kuroboku soil. 4. The predominant factors for poor growth of these plants were respectively nitrogen and phosphorus deficiencies in kuroboku subsurface soil.
650 $aacid soils
650 $aacidity
650 $asoil
650 $aAcidez
650 $aÁcido
650 $aPlanta
650 $aRelação Solo-Planta
650 $aSolo
650 $aSolo Ácido
653 $aAcid
653 $aPlant
653 $aPlant soil relations
653 $aPlantas
653 $aSolos
653 $aTolerance
653 $aTolerancia
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Registro original: |
Embrapa Cerrados (CPAC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
04/12/2017 |
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Data da última atualização: |
04/12/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
ASSIS, T. M. de; SCHLICHITING, M. V.; LOPES, C. L.; KUNZ, A.; GOMES, S. D. |
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Afiliação: |
TATIANE MARTINS DE ASSIS, UNIOESTE/Cascavel; MARCOS VINICIUS SCHLICHITING, UNIOESTE/Cascavel; CARLA LIMBERGER LOPES, UNIOESTE/Cascavel; AIRTON KUNZ, CNPSA; SIMONE DAMASCENO GOMES, UNIOESTE/Cascavel. |
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Título: |
Stability of partial nitritation of poultry slaughterhouse wastewater in a sequential batch reactor. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Engenharia Agrícola, v. 37, p. 323-332, 2017. |
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DOI: |
10.1590/1809-4430 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT: The aim of this study was to monitor the stabilization of a sequential batch reactor (SBR) regarding the partial nitritation of poultry slaughterhouse wastewater, aiming at preparing it for a reactor with bacteria that promote anaerobic ammonia oxidation (anammox). A cylindrical reactor with a useful volume of 3.5 L, mechanical agitation (50 rpm), and suspended biomass was used in the experiment. The strategies adopted for nitrite-oxidizing bacteria (NOB) inhibition were cycle time (CT: 24, 16, 6, 5, 4 h and real-time monitoring), free ammonia accumulation, alkalinity restriction and low concentrations of dissolved oxygen (DO). The ammonification process, observed at all experimental phases, negatively influenced the control of partial nitritation process. Alkalinity restriction under low cycle times (4 and 5 h) conditions, together with low dissolved oxygen concentration, was a key factor for nitrite-oxidizing bacteria inhibition. Stability of partial nitritation was only reached by real-time monitoring, being the cycles stopped when 50% N?NH4 + and 50% N?NO2 − were present in the reactor. |
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Palavras-Chave: |
Anammox. |
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Thesagro: |
Dejeto; Meio ambiente; Tecnologia agrícola. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01790naa a2200229 a 4500
001 2081289
005 2017-12-04
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1590/1809-4430$2DOI
100 1 $aASSIS, T. M. de
245 $aStability of partial nitritation of poultry slaughterhouse wastewater in a sequential batch reactor.$h[electronic resource]
260 $c2017
520 $aABSTRACT: The aim of this study was to monitor the stabilization of a sequential batch reactor (SBR) regarding the partial nitritation of poultry slaughterhouse wastewater, aiming at preparing it for a reactor with bacteria that promote anaerobic ammonia oxidation (anammox). A cylindrical reactor with a useful volume of 3.5 L, mechanical agitation (50 rpm), and suspended biomass was used in the experiment. The strategies adopted for nitrite-oxidizing bacteria (NOB) inhibition were cycle time (CT: 24, 16, 6, 5, 4 h and real-time monitoring), free ammonia accumulation, alkalinity restriction and low concentrations of dissolved oxygen (DO). The ammonification process, observed at all experimental phases, negatively influenced the control of partial nitritation process. Alkalinity restriction under low cycle times (4 and 5 h) conditions, together with low dissolved oxygen concentration, was a key factor for nitrite-oxidizing bacteria inhibition. Stability of partial nitritation was only reached by real-time monitoring, being the cycles stopped when 50% N?NH4 + and 50% N?NO2 − were present in the reactor.
650 $aDejeto
650 $aMeio ambiente
650 $aTecnologia agrícola
653 $aAnammox
700 1 $aSCHLICHITING, M. V.
700 1 $aLOPES, C. L.
700 1 $aKUNZ, A.
700 1 $aGOMES, S. D.
773 $tEngenharia Agrícola$gv. 37, p. 323-332, 2017.
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Embrapa Suínos e Aves (CNPSA) |
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