The distribution of zinc in selected soils in Louisiana

Sedberry, J. E.; Reddy, C. Narayana

doi:10.1080/00103627609366688

Cited by 24 publications

(13 citation statements)

References 2 publications

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“…This is found, as a rule, with medium and heavy soils that have slightly acid or neutral pH. Higher Zn H2Û than Zn CaC , 2 was also reported by other authors (Sedberry & Reddy, 1976;Viets, 1962).…”

Section: Resultssupporting

confidence: 74%

Influence of soil properties on the distribution of zinc in polish soils

Bogacz¹

1993

Geomicrobiology Journal

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In 49 soil samples, total zinc was distributed mainly among and residual Zn (55.2%) fractions. Water-soluble Zn and nonspecifically ad sorbed, exchangeable Zn, specifically adsorbed, exchangeable Zn, and organicall bound zinc fractions contained on average 1. 1, 2.4, 7.4, and 12.8%, respectively, of this microelement. Correlations were sought between soil factors such as pH, sorptiv capacity, fines and colloidal particles, organic matter, and concentrations of Zn in th various fractions. Acid soils contained a greater share of water-soluble and nonspecifically adsorbed, exchangeable Zn, while those with neutral pH contained a greater share of specifically adsorbed Zn, Mn-and Fe-bound Zn, and residual Zn. Higher amounts af fines and colloidal particles correlated with lower amounts of non specifically and specifically adsorbed, exchangeable Zn and at the same time with higher amounts of Zn bound to manganese and iron oxides and immobilized Zn. The toxicity of Zn in soil, which may be taken up by plants and enter waters, represents a real danger in the case of acid soils low in fines and colloidal particles. This pertains particularly to soils near potential sources ofZn contamination.

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Section: Resultssupporting

confidence: 74%

Influence of soil properties on the distribution of zinc in polish soils

Bogacz¹

1993

Geomicrobiology Journal

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“…An understanding of the distribution of zinc between different forms in the soil could help to explain and/or predict differences in the availability of both native and applied zinc to plants. Several fractionation techniques are now available which attempt to distinguish between the various forms in which micronutrients, including zinc, are thought to occur in the soil (McLaren and Crawford, 1973;Sedberry and Reddy, 1976;Shuman, 1985). The use of such techniques should help to improve our knowledge of the relative importance of the different forms of soil zinc for the zinc nutrition of plants.…”

Section: Introductionmentioning

confidence: 97%

Fractionation of zinc in some New Zealand soils

Chowdhury

McLaren

Cameron

et al. 1997

Communications in Soil Science and Plant Analysis

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The amounts and forms of zinc in twenty surface soils from Canterbury and Southland, New Zealand were determined using a sequential fractionation scheme. Total soil zinc concentrations ranged from 38.1 mg·kg -1 to 113.8 mg·kg -1 . Although the proportions of zinc found in individual fractions varied between soils, on average approximately 3% occurred as exchangeable zinc, 5% as organic-bound zinc, 9%, 18%, 24% was associated with manganese, amorphous iron and crystalline iron oxides, respectively, and 40% was in the residual fraction. In a group of soils formed in greywacke alluvium or loess, exchangeable zinc was inversely related to soil pH. Within the same group of soils, those of similar age with greater concentrations of total and organicbound zinc were present in imperfectly-and poorly-drained soils compared with well-drained soils. Zinc extracted from the soils with a range of reagents used to assess 'plant available' zinc was correlated strongly with the concentrations of zinc present in the exchangeable and organic-bound zinc fractions.

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“…Sedberry and Reddy (1976) reported that on average of 1.7, 0.9, 2.6, 4.4, and 86.4% of the total Zn in lO Louisiana soils was in the water solution, exchangeable, chelated, organic, and residual mineral fractions, respectively. Shuman (1979) found that l-7 Vo of the total Zn in 10…”

mentioning

confidence: 99%

Distribution of Zinc Fractions in Prairie Soils

Liang¹,

Stewart²,

Karamanos³

1990

Can. J. Soil. Sci.

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The distribution of Zn in soil fractions was determined for 27 representative prairie soils from Saskatchewan. TotalZninthe2T soils under study ranged from 19.0 to 106.6 p.gg-rwith an average of 62.0 pEE-l . A sequential fractionation showed that 0.2-2.4Vo of total Zn was exchangeable, 0.4-8.1% was was acid soluble, 1.6-9.7 % was associated with Mn oxides, 0.6-4.47o was associated with organic matter and 0.9-5.1% was associated with Fe * Al oxides. Most of the total Zn was present in residual form (66.9-91.0%). Amounts of Zn in exchangeable and Pb-displaceable fractions varied inversely with soil pH and extractable P. DTPA- RESULTS AND DISCUSSIONThe chemical extraction methods used gave reproducible results since percent coefficients of variation (CV) for all Zn determination of extractions were usually less than l0% with majority below 5%, except arnmonium oxalate extraction (about20%). Similar difficulties were reported by Shuman (1979), Ross et al. (1985) and Neilsen et al. (1986)

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The distribution of zinc in selected soils in Louisiana

Cited by 24 publications

References 2 publications

Influence of soil properties on the distribution of zinc in polish soils

Influence of soil properties on the distribution of zinc in polish soils

Fractionation of zinc in some New Zealand soils

Distribution of Zinc Fractions in Prairie Soils

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