The profile distribution of total and DTPA‐extractable copper in selected soils in Louisiana

Karin, Hatim; Sedberry, J. E.; Miller, B. J.

doi:10.1080/00103627609366655

Cited by 17 publications

(5 citation statements)

References 9 publications

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“…Some previous studies have shown that organic C has a positive effect on available Zn, Cu, Mn, and Fe (Katyal and Sharma 1991;Follet and Lindsay 1970;Karim, Sedberry, and Miller 1976). Highly significant coefficients of correlation among DTPA Zn, Cu, Mn, and Fe and organic-matter content of soils confirm the findings of Follet and Lindsay (1970).…”

Section: Factors Influencing Micronutrient Statussupporting

confidence: 82%

Diethylenetriaminepentaacetic Acid–Extractable Micronutrients Status in Soil under a Rice–Wheat System and Their Relationship with Soil Properties in Different Agroclimatic Zones of Indo‐Gangetic Plains of India

Sidhu

Sharma

2010

Communications in Soil Science and Plant Analysis

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Section: Factors Influencing Micronutrient Statussupporting

confidence: 82%

Diethylenetriaminepentaacetic Acid–Extractable Micronutrients Status in Soil under a Rice–Wheat System and Their Relationship with Soil Properties in Different Agroclimatic Zones of Indo‐Gangetic Plains of India

Sidhu

Sharma

2010

Communications in Soil Science and Plant Analysis

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“…In the calcareous profile (soil #10), however, highest concentrations of Fe, Mn and Zn occurred in the upper horizon, whereas Cu increased with depth. [23] for Cu -DTPA, Ref. [20] Data listed in Table 2 also indicate that total Cu, Fe, Mn and Zn appear to vary more with soil composition and parent material than with soil depth, as quoted for other regions.…”

Section: Marcel Dekker Inc • 270 Madison Avenue • New York Ny 10016mentioning

confidence: 94%

Dtpa and Mehlich-3 Micronutrient Extractability in Natural Soils

Cancela

Abreu

Paz‐González

2002

Communications in Soil Science and Plant Analysis

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The aim of the paper was to contribute to the acquisition of background data for the specification of safe boron levels in soils in relation to diagnostics by multi-nutrient soil tests and to CEC (cation exchange capacity) value of soil, pH and soil organic matter. The research was conducted on 24 soils. Sorption was determined after 97 days from the application of B at the rates of 0, 1, 2.5, 5 mg B/kg in H 3 BO 3. The closest regression of B-sorption was with the CEC value of soil in NH 4-acetate and water tests and it increased with the increasing application of B (regressi-on at a rate of 5 ppm B; NH 4-acetate: linear R 2 = 0.632, polynomial 2 nd R 2 = 0.644; water: linear R 2 = 0.644, polynomial 2 nd R 2 = 0.599). No relationship was found in the Mehlich 3 test. Regressions of B sorption on pH value were substantially lower. The relationship of B sorption with soil organic matter was similar to CEC, but less close. In the NH 4-acetate soil test, after the correction of CEC value of soil by pH deviations from the optimum, regression was improved (linear R 2 = 0.821, polynomial 2 nd R 2 = 0.837).

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“…Viets (1962) postulated the occurrence of Cu in distinct chemical pools: water soluble, easily exchangeable, adsorbed, and precipitated with secondary minerals and bound to primary minerals. The nature and the amount of various forms of Cu depend on the variation in soil texture, pH, calcium carbonate (CaCO 3 ), organic matter, and other soil characteristics (Karim, Sedberry, and Miller 1976). Copper is tightly bound to compounds in soil organic matter and much of the Cu in soil solution is also associated with organic matter, even more so than the other micronutrients, and is generally unavailable to plants (Mathur and Levesque 1983;He et al 2006.).…”

Section: Introductionmentioning

confidence: 99%

Distribution of Forms of Copper and their Association with Soil Properties and Uptake in Major Soil Orders in Semi-arid Soils of Punjab, India

Sharma

Brar

Chanay

et al. 2015

Communications in Soil Science and Plant Analysis

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all soils were considered, total Cu content ranged from 7 to 37 mg kg −1 , while DTPA-extractable and soil solution plus exchangeable Cu contents ranged from 0.30 to 3.26 mg kg −1 and from 0.02 to 0.43 mg kg −1 , respectively. Copper adsorbed onto inorganic sites ranged from 0.62 to 2.6 mg kg −1 and that onto oxide surfaces ranged from 2.0 to 13.2 mg kg −1 . The Cu bound by organic sites ranged from 1.2 to 12.2 mg kg −1 . The magnitudes of different forms of Cu in soils did not exhibit any consistent pattern of distribution. Organic matter and size fractions (clay and silt) had a strong influence on the distribution of different forms of Cu. The content of all forms of Cu was generally greater in the fine-textured Alfisols and Inceptisols than coarse-textured Entisols. Soil solution plus exchangeable Cu, Cu held onto organic sites, and and Cu adsorbed onto inorganic sites (crystalline) had significant positive correlations with organic carbon and silt contents.The DTPA Cu was positively correlated with organic carbon, silt, and clay contents. Total Cu content strongly correlated with silt and clay contents of soils. Among the forms, Cu held on the organic site, water soluble + exchangeable Cu, and Cu adsorbed onto oxide surface were positively correlated with DTPA-extractable Cu. The DTPA-extractable Cu and soil solution plus exchangeable Cu seems to be good indices of Cu availability in soils and can be used for correction of Cu deficiency in the soils of the region. The uptake of Cu was greater in fine-textured Inceptisols and Alfisols than coarse-textured Entisols. Among the different forms only DTPA-extractable Cu was positively correlated with total uptake of Cu.

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The profile distribution of total and DTPA‐extractable copper in selected soils in Louisiana

Cited by 17 publications

References 9 publications

Diethylenetriaminepentaacetic Acid–Extractable Micronutrients Status in Soil under a Rice–Wheat System and Their Relationship with Soil Properties in Different Agroclimatic Zones of Indo‐Gangetic Plains of India

Diethylenetriaminepentaacetic Acid–Extractable Micronutrients Status in Soil under a Rice–Wheat System and Their Relationship with Soil Properties in Different Agroclimatic Zones of Indo‐Gangetic Plains of India

Dtpa and Mehlich-3 Micronutrient Extractability in Natural Soils

Distribution of Forms of Copper and their Association with Soil Properties and Uptake in Major Soil Orders in Semi-arid Soils of Punjab, India

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