Selenium in amorphous iron (hydr)oxide-applied soil as affected by air-drying and pH

Rashid, Md. M.; Kang, Youngnam; Sakurai, Katsutoshi

doi:10.1080/00380768.2002.10409197

Cited by 7 publications

(5 citation statements)

References 25 publications

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“…The dissolved Se concentration in the IV addition experiment was lower than that in the VI addition experiment due to the higher soluble nature of Se(VI) as compared to Se(IV) (Balistrieri and Chao, 1990;Masscheleyn et al, 1991;Tokunaga et al, 1996;Rashid et al, 2002). The formation of an outer-sphere complex for Se(VI) on ferrihydrite suggests that the Se(VI) surface complex was less stable than that of Se(IV) forming an inner-sphere complex as shown in the EXAFS section.…”

Section: Se and Te Species In The Water Samplesmentioning

confidence: 80%

Origin of the difference in the distribution behavior of tellurium and selenium in a soil–water system

Harada

Takahashi

2008

Geochimica et Cosmochimica Acta

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Section: Se and Te Species In The Water Samplesmentioning

confidence: 80%

Origin of the difference in the distribution behavior of tellurium and selenium in a soil–water system

Harada

Takahashi

2008

Geochimica et Cosmochimica Acta

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“…Although Mo and Se do not belong to the same periodic group, they are both absorbed by plants in form of anions. In low soil pH, bioavailability of Mo and Se both trend to decrease (Rashid et al 2002;Eich-Greatorex et al 2010;Lee et al 2011b). The contents of Mo and Se in soil are closely related to the concentrations of Mo and Se in the mother rocks.…”

Section: Introductionmentioning

confidence: 89%

Impact of molybdenum on Chinese cabbage response to selenium in solution culture

Zhang

Zhao

et al. 2012

Soil Science and Plant Nutrition

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Molybdenum (Mo) and selenium (Se) are both essential micronutrients for animals and humans. Increasing Mo and Se contents in food crops offers an effective approach to reduce Mo and Se deficiency problems. A hydroponic trial was conducted to investigate the interactions of Mo and Se on uptake, transfer factors (TF shoot ) as well as distribution coefficients (DC) of Mo and Se on Chinese cabbage (Brassica campestris L. ssp. Pekinensis). In Experiment 1 three concentrations of Mo (0.01, 0.1 and 1 mg L À1 ) and four concentrations of Se (0, 0.01, 0.1 and 1 mg L À1 ) were arranged with a randomized block design. In Experiment 2, there were three treatments, 0.1 mg L À1 Mo, 0.1 mg L À1 Se and a combination of 0.1 mg L À1 Mo þ 0.1 mg L À1 Se. Experiment 1 showed that Se decreased Mo concentrations in shoots and roots. The impact of Mo on Chinese cabbage response to uptake of Se varied, depending on whether the root Se concentration was saturated or not; Experiment 2 showed that there is a strong antagonism between Mo and Se on nutrition uptake when Mo and Se deficiencies persist for long periods; Mo and Se were easily translocated from solution to plants and from roots to shoots. The results will also be of help in cultivating Mo-enriched and Se-enriched crops.

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“…The variations in crystalline-to-amorphous ratios between those treated with L and CK in both soil and colloid become insignificant as time passes, but the differences between those treated with ZVI, ATP, and CK remain substantial. Rashid et al [ 33 ] found that there is a strong correlation between pH and variations in soil iron oxide concentration. In particular, the crystalline-to-amorphous ratio rises when the soil reacidifies.…”

Section: Resultsmentioning

confidence: 99%

The Immobilization Mechanism of Inorganic Amendments on Cu and Cd in Polluted Paddy Soil in Short/Long Term

Liu,

Ding,

Lai

et al. 2024

Toxics

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This study investigated the impact of soil colloidal characteristics on the transfer patterns of different Cu and Cd speciation in contaminated soil treated with three different amendments: lime (L), zero-valent iron (ZVI), and attapulgite (ATP). It seeks to clarify the activation hazards and aging processes of these modifications on Cu and Cd. Compared with the control (CK), the available Cu concentrations treated with amendments reduced in the short term (6 months) by 96.49%, 5.54%, and 89.78%, respectively, and Cd declined by 55.43%, 32.31%, and 93.80%, respectively. Over a 12-year period, there was no significant change in the immobile effect with L, while Cu and Cd fell by 19.06% and 40.65% with ZVI and by 7.63% and 40.78% with ATP. Short- and long-term increases in the readily reducible iron and manganese oxide fraction of Cu and Cd were accompanied by a considerable rise in the concentrations of amorphous iron oxide in the soil and colloid after amendment treatment. This suggested that Cu and Cd were immobilized and stabilized in part by amorphous iron oxide.

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Selenium in amorphous iron (hydr)oxide-applied soil as affected by air-drying and pH

Cited by 7 publications

References 25 publications

Origin of the difference in the distribution behavior of tellurium and selenium in a soil–water system

Origin of the difference in the distribution behavior of tellurium and selenium in a soil–water system

Impact of molybdenum on Chinese cabbage response to selenium in solution culture

The Immobilization Mechanism of Inorganic Amendments on Cu and Cd in Polluted Paddy Soil in Short/Long Term

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