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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Caprinos e Ovinos; Embrapa Cocais; Embrapa Meio-Norte; Embrapa Tabuleiros Costeiros. |
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Data corrente: |
13/04/2016 |
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Data da última atualização: |
03/05/2016 |
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Autoria: |
MOURA, E. V. de; LIMA, G. F. da C.; MATOS, M. M. S. (ed.). |
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Título: |
Experiências em transferência de tecnologias no contexto da agricultura familiar. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Parnamirim: EMPARN, 2014. |
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Páginas: |
225 p. |
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Série: |
(EMPARN. Série Livros, 14). |
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Idioma: |
Português |
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Palavras-Chave: |
Appropriate technology; Convivência com o semiárido; Extension activities; Sertão. |
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Thesagro: |
Agricultura familiar; Assistência técnica; Desenvolvimento rural; Extensão rural; Sistema de produção; Sociologia rural; Transferência de tecnologia. |
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Thesaurus Nal: |
Rural communities; Rural sociology; Technology transfer. |
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Categoria do assunto: |
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B Sociologia Rural |
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Marc: |
LEADER 00938nam a2200313 a 4500
001 2044340
005 2016-05-03
008 2014 bl uuuu 00u1 u #d
100 1 $aMOURA, E. V. de
245 $aExperiências em transferência de tecnologias no contexto da agricultura familiar.
260 $aParnamirim: EMPARN$c2014
300 $a225 p.
490 $a(EMPARN. Série Livros, 14).
650 $aRural communities
650 $aRural sociology
650 $aTechnology transfer
650 $aAgricultura familiar
650 $aAssistência técnica
650 $aDesenvolvimento rural
650 $aExtensão rural
650 $aSistema de produção
650 $aSociologia rural
650 $aTransferência de tecnologia
653 $aAppropriate technology
653 $aConvivência com o semiárido
653 $aExtension activities
653 $aSertão
700 1 $aLIMA, G. F. da C.
700 1 $aMATOS, M. M. S.
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Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
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Registro |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Rondônia. |
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Data corrente: |
06/06/2022 |
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Data da última atualização: |
07/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
MATOSO, S. C. G.; WADT, P. G. S.; SOUZA JÚNIOR, V. S. de; PÉREZ, X. L. O. |
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Afiliação: |
PAULO GUILHERME SALVADOR WADT, CPAF-RO. |
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Título: |
Soil mineralogy-controlled phosphorus availability in soils mixed with phosphate fertiliser and biochar. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Environmental Technology, 2022. |
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Idioma: |
Inglês |
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Notas: |
Online First. |
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Conteúdo: |
he biochar amendment to soil proved to be beneficial to improve soil quality and provide nutrients. However, the effect of biochar on the availability of P is still controversial. We aim to study the effect of adding phosphate fertiliser and biochar on the P bioavailability in soils of different mineralogies. Eight biochars derived from biomass (rice husk and coffee husk), soil (sandy and clayey), and phosphate fertiliser (triple superphosphate) were produced. The biochar enrichment process with superphosphate was carried out before and after pyrolysis. Thus, we tested two biochar groups: (1) enriched biochars prior to pyrolysis; (2) enriched biochars after pyrolysis. These biochars were tested as P sources in soils of three mineralogies (kaolinite/oxide, kaolinite, and smectite). Batch sorption-desorption experiments were conducted. The sorbed P was fractionated to examine the factors controlling the retention of applied P. In the three soil mineralogies the use of enriched biochars prior to pyrolysis results in lower availability of P. In contrast, the enriched biochars after pyrolysis increase the bioavailability of P. The coffee husk biochar is more suitable than rice husk biochar to protect P from soil retention reactions. The use of sandy soil rather than clayey soil in enriched biochars compositions results in higher P content availability when applied to soils. The factor that controls the retention of P is the reaction between P, organic compounds, and Fe and Al compounds. The greater the relationship between biochar and soluble P in the fertiliser, the higher the increase of P retention. Menoshe biochar amendment to soil proved to be beneficial to improve soil quality and provide nutrients. However, the effect of biochar on the availability of P is still controversial. We aim to study the effect of adding phosphate fertiliser and biochar on the P bioavailability in soils of different mineralogies. Eight biochars derived from biomass (rice husk and coffee husk), soil (sandy and clayey), and phosphate fertiliser (triple superphosphate) were produced. The biochar enrichment process with superphosphate was carried out before and after pyrolysis. Thus, we tested two biochar groups: (1) enriched biochars prior to pyrolysis; (2) enriched biochars after pyrolysis. These biochars were tested as P sources in soils of three mineralogies (kaolinite/oxide, kaolinite, and smectite). Batch sorption-desorption experiments were conducted. The sorbed P was fractionated to examine the factors controlling the retention of applied P. In the three soil mineralogies the use of enriched biochars prior to pyrolysis results in lower availability of P. In contrast, the enriched biochars after pyrolysis increase the bioavailability of P. The coffee husk biochar is more suitable than rice husk biochar to protect P from soil retention reactions. The use of sandy soil rather than clayey soil in enriched biochars compositions results in higher P content availability when applied to soils. The factor that controls the retention of P is the reaction between P, organic compounds, and Fe and Al com... Mostrar Tudo |
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Palavras-Chave: |
Enriched biochar; Organo-mineral associations; Phosphorus availability. |
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Thesaurus NAL: |
Biochar; Soil mineralogy. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1143745/1/095933302022-220601-174040.pdf
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Marc: |
LEADER 02316naa a2200229 a 4500
001 2143745
005 2022-06-07
008 2022 bl uuuu u00u1 u #d
100 1 $aMATOSO, S. C. G.
245 $aSoil mineralogy-controlled phosphorus availability in soils mixed with phosphate fertiliser and biochar.$h[electronic resource]
260 $c2022
500 $aOnline First.
520 $ahe biochar amendment to soil proved to be beneficial to improve soil quality and provide nutrients. However, the effect of biochar on the availability of P is still controversial. We aim to study the effect of adding phosphate fertiliser and biochar on the P bioavailability in soils of different mineralogies. Eight biochars derived from biomass (rice husk and coffee husk), soil (sandy and clayey), and phosphate fertiliser (triple superphosphate) were produced. The biochar enrichment process with superphosphate was carried out before and after pyrolysis. Thus, we tested two biochar groups: (1) enriched biochars prior to pyrolysis; (2) enriched biochars after pyrolysis. These biochars were tested as P sources in soils of three mineralogies (kaolinite/oxide, kaolinite, and smectite). Batch sorption-desorption experiments were conducted. The sorbed P was fractionated to examine the factors controlling the retention of applied P. In the three soil mineralogies the use of enriched biochars prior to pyrolysis results in lower availability of P. In contrast, the enriched biochars after pyrolysis increase the bioavailability of P. The coffee husk biochar is more suitable than rice husk biochar to protect P from soil retention reactions. The use of sandy soil rather than clayey soil in enriched biochars compositions results in higher P content availability when applied to soils. The factor that controls the retention of P is the reaction between P, organic compounds, and Fe and Al compounds. The greater the relationship between biochar and soluble P in the fertiliser, the higher the increase of P retention.
650 $aBiochar
650 $aSoil mineralogy
653 $aEnriched biochar
653 $aOrgano-mineral associations
653 $aPhosphorus availability
700 1 $aWADT, P. G. S.
700 1 $aSOUZA JÚNIOR, V. S. de
700 1 $aPÉREZ, X. L. O.
773 $tEnvironmental Technology, 2022.
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Registro original: |
Embrapa Rondônia (CPAF-RO) |
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