Silicon transfers in a rice field in Camargue (France)

Desplanques, V.; Cary, Lise; Mouret, Jean-Claude; Trolard, Fabienne; Bourrié, Guilhem; Grauby, Olivier; Meunier, Jean‐Dominique

doi:10.1016/j.gexplo.2005.08.036

Cited by 96 publications

(62 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Wet precipitation can also sustain Si to the soil-plant system, such as in a rice field in Camargue (France) where the annual precipitation flux give a DSi input of 3 ± 2 kg Si ha −1 yr −1 (Desplanques et al, 2006). Similarly, in two Amazonian forest sides in Brazil, Si inputs on topsoil from the rain and from dust were small but not negligible: 0.6 kg Si ha −1 yr −1 (Cornu et al, 1998).…”

Section: Atmospheric Si Inputmentioning

confidence: 99%

Tracing the origin of dissolved silicon transferred from various soil-plant systems towards rivers: a review

et al. 2011

View full text Add to dashboard Cite

show abstract

Section: Atmospheric Si Inputmentioning

confidence: 99%

Tracing the origin of dissolved silicon transferred from various soil-plant systems towards rivers: a review

et al. 2011

View full text Add to dashboard Cite

show abstract

“…Teores (%) de Si e macronutrientes no tecido vegetal de milho cultivado sob dois sistemas de manejo de solo no experimento de Três Capões -Cruz Alta, RS # Médias seguidas por letras distintas na coluna, diferem entre si ao nível de 5% de significância pelo teste de Tukey. ciclagem do Si de restos culturais em solos intemperizados é provavelmente a principal fonte deste elemento para as plantas principalmente na forma de opala biogênica (Desplanques et al, 2006). Para verificar a absorção de Si pelas plantas, foram determinados os teores deste elemento na cultura de milho no experimento 2.…”

Section: Resultsunclassified

Caracterização química superficial de Latossolo cultivado sob sistema convencional e plantio direto no Rio Grande do Sul

Giongo

Bohnen

2010

Agraria

View full text Add to dashboard Cite

Caracterização química superficial de Latossolo cultivado sob sistema convencional e plantio direto no Rio Grande do Sul RESUMONo sistema plantio direto (SPD), o não revolvimento do solo, o acúmulo de resíduos na superfície e a rotação de culturas com leguminosas e/ou gramíneas, podem alterar a dinâmica dos nutrientes no solo. O objetivo deste trabalho foi avaliar as principais alterações de algumas características químicas do solo e da planta, com ênfase nos teores de Al, Ca, P e Si, da solução de solo do ambiente radicular e do tecido vegetal da cultura do milho sob SPD e sistema de preparo convencional (SPC). Neste estudo foram realizadas análises químicas da solução do solo, em dois experimentos (1 e 2), e, em um deles, foi realizada também a análise química de tecido vegetal da cultura do milho. No experimento 1 não houve diferença entre os sistemas de manejo para os teores de Al e P, enquanto no SPD foram encontrados maiores teores de Ca, Mg e K e menores de Si na solução de solo, quando comparado ao SPC. No experimento 2, menores teores de Al e K e maiores de Si na solução do solo foram observados no SPD em comparação ao SPC. A quantidade de Si, N, P, K, Ca e Mg acumulada na parte aérea das plantas de milho foi maior no SPD que no SPC. O SPD propicia mudanças nos teores de Si, Ca e Al na solução de solo em comparação ao SPC.Palavras-chave: Alumínio, cálcio, composição química da planta, fósforo, silício Superficial chemical characterization of Latosol cultivated under conventional tillage and zero tillage in Rio Grande do Sul, Brazil ABSTRACTIn zero tillage systems, the accumulation of residues in the soil surface and the use of crop rotation with leguminous plants and/or grasses can change soil nutrient dynamics. The objective of this work was to verify the main alterations of some chemical characteristics of soil and plant, with emphasis in the concentration of aluminum, calcium, phosphorus and silicon in the soil solution of the root system environment and in the leaves of the maize crop under zero tillage system in relation to conventional tillage system. The chemical characterization of the soil solution was carried out in two experiments (1 and 2). In experiment 1 no differences were observed between the systems for aluminum and phosphorus concentration in the soil solution. However, the soils under the zero tilling system presented greater amounts of calcium, magnesium and potassium and lower silicon concentrations in the soil solution, when compared with the other system. In experiment 2, soil solution of the zero tillage system showed smaller concentration of aluminum and phosphorus and greater concentration of silicon when compared with the other system. The total amount of silicon and macronutrients accumulated was greater in the soil under the zero tillage system. The zero tillage system promotes changes in the concentrations of Si, Ca and Al in the soil solution in comparison with the conventional tillage system.

show abstract

“…During vegetation growth plants take up large amounts of Si every year, while a part of Si is supplied by irrigation water input or dust deposition [42]. In autumn, large amounts of Si present in rice straw and cuticle of grains are exported along with the rice crop, while in the fallow phragmites fall and their litter is deposited into the soil where it is extensively degraded during winter due to flooded conditions and alkaline pH.…”

Section: Comparison Of the Two Systems In Term Of Si-cyclementioning

confidence: 99%

“…In autumn, large amounts of Si present in rice straw and cuticle of grains are exported along with the rice crop, while in the fallow phragmites fall and their litter is deposited into the soil where it is extensively degraded during winter due to flooded conditions and alkaline pH. In Camargue, a preliminary balance in the paddy system pointed out that at least 270±80 kg Si ha -1 year -1 are exported out of the field [42], which cannot be compensated by the significant suspended particulate matter flux contained in irrigation waters [43]. …”

Section: Comparison Of the Two Systems In Term Of Si-cyclementioning

confidence: 99%

See 1 more Smart Citation

Impact of 60 Years of Intensive Rice Cropping on Clay Minerals in Soils Due to Si Exportation

Irfan¹

2017

AJAF

View full text Add to dashboard Cite

Abstract:Rice is cultivated as staple for over half of the World's population. In Camargue (South of France) rice fields have been established on very young soils developed from historic fluvial deposits of the Rhône River. The comparison of clay mineralogy in a paddy field cultivated for 60 years and in a control shows a significant increase of the clay crystallinity in the paddy field soil, which implies a decrease of their solubility. In the paddy soils, phytoliths, poorly crystallized clays, such as smectite and to a lesser extent kaolinite, are progressively dissolved to supply Si for rice requirements. The sustainability of the crop system requires the clearing of silica exportations.

show abstract

Silicon transfers in a rice field in Camargue (France)

Cited by 96 publications

References 13 publications

Tracing the origin of dissolved silicon transferred from various soil-plant systems towards rivers: a review

Tracing the origin of dissolved silicon transferred from various soil-plant systems towards rivers: a review

Caracterização química superficial de Latossolo cultivado sob sistema convencional e plantio direto no Rio Grande do Sul

Impact of 60 Years of Intensive Rice Cropping on Clay Minerals in Soils Due to Si Exportation

Contact Info

Product

Resources

About