| |
|
|
| Registros recuperados : 266 | |
| 45. |  | CORRÊA, M. M.; ARAUJO FILHO, J. C. de; FONTES, M. P. F. Avaliação quantitativa de minerais cristalinos de solos pelo Método Rietveld. In: TEIXEIRA, P. C.; DONAGEMMA, G. K.; FONTANA, A.; TEIXEIRA, W. G. (Ed.). Manual de métodos de análise de solo. 3. ed. rev. e ampl. Brasília, DF: Embrapa, 2017. pt. 4, cap. 7, p. 505-525.| Biblioteca(s): Embrapa Solos. |
|    |
| 49. | | CORRÊA, M. M.; KER, J. C.; ARAUJO FILHO, J. C. de; CAMÊLO, D. de L. Formas de ferro, silício e, ou, alumínio na gênese de fragipãs e horizontes coesos dos Tabuleiros Costeiros. Revista Brasileira de Ciência do Solo, Viçosa, MG, v. 39, n. 4, p. 940-949, 2015.| Biblioteca(s): Embrapa Solos. |
| |
| Registros recuperados : 266 | |
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Solos. |
|
Data corrente: |
08/07/2019 |
|
Data da última atualização: |
11/11/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
BEUSCH, C.; CIERJACKS, A.; BÖHM, J.; MERTENS, J.; BISCHOFF, W.-A.; ARAUJO FILHO, J. C. de; KAUPENJOHANN, M. |
|
Afiliação: |
CHRISTINE BEUSCH, TECHNISCHE UNIVERSITAT, BERLIN; ARNE CIERJACKS, UNIVERSITY OF APPLIED SCIENCES, DRESDEN; JOHANNES BÖHM, TECHNISCHE UNIVERSITÄT, BERLIN; JAN MERTENS, UNIVERSITY OF HOHENHEIM, STUTTGART; WOLF-ANNO BISCHOFF, TERRAQUAT CONSULTANTS, NÜRTINGEN; JOSE COELHO DE ARAUJO FILHO, CNPS; MARTIN KAUPENJOHANN, TECHNISCHE UNIVERSITÄT, BERLIN. |
|
Título: |
Biochar vs. clay: comparison of their effects on nutrient retention of a tropical Arenosol. |
|
Ano de publicação: |
2019 |
|
Fonte/Imprenta: |
Geoderma, v. 337, p. 524-535, Mar. 2019. |
|
DOI: |
https://doi.org/10.1016/j.geoderma.2018.09.043 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The use of biochar as a soil amendment is being widely studied, whereas clay addition to meliorate soils has only been considered in a few studies. However, there is a limited understanding of the impact of biochar and clay on nutrient retention under field conditions, especially in seasonally dry tropical forests in semi-arid regions. In this study, biochar and clay were added to a tropical Arenosol to quantify nutrient leaching as a measure of nutrient retention to test the potential of both amendments for soil amelioration. In a field experiment, planting holes were prepared with 5 vol% medium-temperature biochar made of Prosopis juliflora (SW) DC, produced locally in the traditional manner in a kiln, or 10 vol% clayey sediment from a temporarily dry lake. Both amendments and control were tested as fertilised and unfertilised treatments. Then seedlings of the endemic tree Spondias tuberosa Arr. were planted. Self-integrating accumulators (SIAs) were used to quantify nutrient leaching at a depth of 0.7m for ammonium-N (NH4+ -N), nitrate-N (NO3- -N), and potassium (K+). Leaching was assessed for two consecutive periods of eight months each. In the fertilised treatments, biochar addition significantly reduced NO3- -N leaching by 46% in the first period; leaching of all other nutrients was reduced but remained non-significant. In contrast, clay addition significantly reduced NH4+ -N leaching by 79% in the second period, K+ leaching by 51% in the first period, and by 45% in the second period, but significantly increased NO3- -N leaching by 57% in the second period. Both treatments showed pronouncedly different leaching patterns over time. Between the first and second period, the ability of biochar to reduce leaching relative to the control decreased by about half for the nutrients tested, whereas the ability of the clay treatment remained rather stable over 1.5 years for NH4+ -N and K+. The reason for the distinct decrease in nutrient retention of biochar in the second period may be the rapid decomposition of biochar carbon by 51% within 16 months. Under the given conditions, only clay can be recommended as a sustainable land management strategy to enhance NH4+ -N and K+ retention capacity of Arenosols in seasonally dry tropical forests. MenosThe use of biochar as a soil amendment is being widely studied, whereas clay addition to meliorate soils has only been considered in a few studies. However, there is a limited understanding of the impact of biochar and clay on nutrient retention under field conditions, especially in seasonally dry tropical forests in semi-arid regions. In this study, biochar and clay were added to a tropical Arenosol to quantify nutrient leaching as a measure of nutrient retention to test the potential of both amendments for soil amelioration. In a field experiment, planting holes were prepared with 5 vol% medium-temperature biochar made of Prosopis juliflora (SW) DC, produced locally in the traditional manner in a kiln, or 10 vol% clayey sediment from a temporarily dry lake. Both amendments and control were tested as fertilised and unfertilised treatments. Then seedlings of the endemic tree Spondias tuberosa Arr. were planted. Self-integrating accumulators (SIAs) were used to quantify nutrient leaching at a depth of 0.7m for ammonium-N (NH4+ -N), nitrate-N (NO3- -N), and potassium (K+). Leaching was assessed for two consecutive periods of eight months each. In the fertilised treatments, biochar addition significantly reduced NO3- -N leaching by 46% in the first period; leaching of all other nutrients was reduced but remained non-significant. In contrast, clay addition significantly reduced NH4+ -N leaching by 79% in the second period, K+ leaching by 51% in the first period, and by 45% in th... Mostrar Tudo |
|
Thesagro: |
Argila; Floresta Tropical; Lixiviação; Solo; Textura do Solo. |
|
Thesaurus NAL: |
Clay; Coarse-textured soils; Leaching; Soil amendments; Tropical forests. |
|
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
|
Marc: |
LEADER 03194naa a2200325 a 4500
001 2110461
005 2021-11-11
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.geoderma.2018.09.043$2DOI
100 1 $aBEUSCH, C.
245 $aBiochar vs. clay$bcomparison of their effects on nutrient retention of a tropical Arenosol.$h[electronic resource]
260 $c2019
520 $aThe use of biochar as a soil amendment is being widely studied, whereas clay addition to meliorate soils has only been considered in a few studies. However, there is a limited understanding of the impact of biochar and clay on nutrient retention under field conditions, especially in seasonally dry tropical forests in semi-arid regions. In this study, biochar and clay were added to a tropical Arenosol to quantify nutrient leaching as a measure of nutrient retention to test the potential of both amendments for soil amelioration. In a field experiment, planting holes were prepared with 5 vol% medium-temperature biochar made of Prosopis juliflora (SW) DC, produced locally in the traditional manner in a kiln, or 10 vol% clayey sediment from a temporarily dry lake. Both amendments and control were tested as fertilised and unfertilised treatments. Then seedlings of the endemic tree Spondias tuberosa Arr. were planted. Self-integrating accumulators (SIAs) were used to quantify nutrient leaching at a depth of 0.7m for ammonium-N (NH4+ -N), nitrate-N (NO3- -N), and potassium (K+). Leaching was assessed for two consecutive periods of eight months each. In the fertilised treatments, biochar addition significantly reduced NO3- -N leaching by 46% in the first period; leaching of all other nutrients was reduced but remained non-significant. In contrast, clay addition significantly reduced NH4+ -N leaching by 79% in the second period, K+ leaching by 51% in the first period, and by 45% in the second period, but significantly increased NO3- -N leaching by 57% in the second period. Both treatments showed pronouncedly different leaching patterns over time. Between the first and second period, the ability of biochar to reduce leaching relative to the control decreased by about half for the nutrients tested, whereas the ability of the clay treatment remained rather stable over 1.5 years for NH4+ -N and K+. The reason for the distinct decrease in nutrient retention of biochar in the second period may be the rapid decomposition of biochar carbon by 51% within 16 months. Under the given conditions, only clay can be recommended as a sustainable land management strategy to enhance NH4+ -N and K+ retention capacity of Arenosols in seasonally dry tropical forests.
650 $aClay
650 $aCoarse-textured soils
650 $aLeaching
650 $aSoil amendments
650 $aTropical forests
650 $aArgila
650 $aFloresta Tropical
650 $aLixiviação
650 $aSolo
650 $aTextura do Solo
700 1 $aCIERJACKS, A.
700 1 $aBÖHM, J.
700 1 $aMERTENS, J.
700 1 $aBISCHOFF, W.-A.
700 1 $aARAUJO FILHO, J. C. de
700 1 $aKAUPENJOHANN, M.
773 $tGeoderma$gv. 337, p. 524-535, Mar. 2019.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Solos (CNPS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
