Fluoride adsorption by a saline sodic soil irrigated with a high F water

Robbins, C. W.

doi:10.1007/bf00259427

Cited by 5 publications

(2 citation statements)

References 7 publications

(11 reference statements)

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“…However, within the range of relevance to the MTLs, the relationship between the concentration of F in the foliage and the concentration of F in the soil solution was comparatively poor (see next section). It is known that adsorption (and therefore the amount of F remaining in solution) is determined by a number of factors, among them pH, ionic strength, presence of poorly crystalline Fe and Al hydrous oxides, and clay mineralogy, ,,,− and these factors have differed between the soils used in this study (Tables S1 and S2, Supporting Information). However, there were no clear relationships between these soil factors and the F uptake in this study, likely due to the limited number of soils used.…”

Section: Discussionmentioning

confidence: 99%

Use of Fluoride-Containing Water for the Irrigation of Soil–Plant Systems

Scholz

Kopittke

Menzies

et al. 2015

J. Agric. Food Chem.

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Many groundwaters used for irrigation contain elevated concentrations of F, but much remains unknown regarding how this F behaves within soils and plants. The present study investigated the adsorption and desorption of F from several soils in short- to medium-term irrigation systems and related foliar F concentrations in three forage plant species to the maximum tolerable level (MTL) in the diets of grazing animals (being 1.8 μmol/g for young cattle, for example). Although adsorption isotherms could be successfully used to predict the behavior (adsorption and desorption) of F within the soil, this was not related to the subsequent accumulation of F in plant foliage. In addition, the extent to which F accumulated in the foliage depended on the plant species. Regardless, F generally did not accumulate in plant foliage to levels exceeding the MTL when used at rates equivalent to irrigation for 25 years. In addition to uptake by roots, F may accumulate in foliar tissues directly due to retention from overhead irrigation. The data presented here regarding the behavior of F in soils and plants will assist in the rigorous regulation of F-containing irrigation water to ensure maximum plant growth while simultaneously minimizing potential harm.

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Section: Discussionmentioning

confidence: 99%

Use of Fluoride-Containing Water for the Irrigation of Soil–Plant Systems

Scholz

Kopittke

Menzies

et al. 2015

J. Agric. Food Chem.

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show abstract

“…Hence, a greater emphasis has been laid in the last few decades in providing F-free potable water supplies in affected areas (12). Since plants constitute an important link in dietary intake of F, many researchers had investigated not only the phenomenology of the plant uptake of F but also various aspects of F sorption in soil (15,16). Since plants constitute an important link in dietary intake of F, many researchers had investigated not only the phenomenology of the plant uptake of F but also various aspects of F sorption in soil (15,16).…”

Section: Introductionmentioning

confidence: 99%