Effect of carbonate in clay fraction on fixation of zinc

Osman, A. Z.; Wassif, M. M.; Elkadi, Mirella; Salam, MA

doi:10.1002/jpln.19801430506

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…The percentage of clay also increased compared to the studied sites' soils, while the proportion of silt and sand decreased in these locations, which is due to the role of carbonate minerals in linking minute clay with silt and sand, or the presence of clay in clusters size of silt and sand coated with carbonate minerals, making it one of the largest (figure 3). This result was confirmed by Osman et al (1980), who found a change in the texture after removing the carbonate minerals from all study soils.…”

Section: Soil Propertiessupporting

confidence: 83%

“…Several processes control the behavior of Zn Q/I parameters in soils, including adsorptiondesorption and precipitation-dissolution (Pasricha et al, 1987). Some physical and chemical properties of the soil affect the Zn adsorption process, such as the amount of clay, organic matter content, total active carbonate content (Osman et al, 1980), and increased soil pH. This research aims to study the behavior of zinc adsorption via Q/I parameters such as zinc potential buffering capacity, labile zinc, zinc activity ratio, Gapon Coefficient, and exchangeable zinc-free energy in order to evaluate zinc bioavailability in these soils using ten calcareous soils samples from Northern Iraq.…”

Section: Introductionmentioning

confidence: 99%

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The effect of calcium carbonate content on the zinc quantity-intensity relationship in some soils of Mosul, Irak

Al-Jumaily

Al-Hamandi

Al-Obaidi

et al. 2022

CTA

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The quantity-intensity relationship (Q/I) was used to evaluate thermodynamic parameters of zinc in soils under different agricultural management. Ten soil samples were collected from Mosul city to study zinc distribution of calcium carbonate content in these soils. Generally, Q/I relationship of zinc may provide an index for the strength and quantity of effective zinc supply to plants in soils. The Q/I parameters of zinc were studied to quantify zinc release before and after removing carbonates in the studied soils. Results showed that the zinc activity ratio (AReZn) is related to changes with labile zinc (±ΔZn) at equilibrium and increased together with increasing zinc concentrations, intensity (I) ranged between 0.8584 and 0.9972×10-3 mol/L1/2 before removing carbonates and between 0.0909 and 2.7626×10-3 mol/L1/2 after removing carbonates. The ranges of labile Zinc (ZnL) values before and after removing carbonates were between 0.5755-0.7815 and 0.0009-0.0104 cmol/kg, respectively, while the Zinc (PBCZn) before and after removing carbonates fluctuated from 0.5839 to 0.9104 and 0.00112 to 0.00990 cmol/kg(mol/L)−1/2, respectively. That means calcium carbonate increases exchangeable zinc and zinc capacity at equilibrium conditions. The free energy (−ΔF) ranged between -1.001 and -0.979 kJ/mol before removing carbonates and between -1.319 and -0.841 kJ/mol after removing carbonates. Gapon Selectivity Coefficient (kG) ranged between 0.0193835 and 0.027453 and 0.000045 and 0.00450 (mol/L)1/2 before and after removing carbonates, respectively. Therefore, these results may be used as a reference for zinc soil fertilization, whereas thermodynamic parameters values may be used to predict soil ability to supply available zinc.

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Section: Soil Propertiessupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

The effect of calcium carbonate content on the zinc quantity-intensity relationship in some soils of Mosul, Irak

Al-Jumaily

Al-Hamandi

Al-Obaidi

et al. 2022

CTA

View full text Add to dashboard Cite

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“…This result indicates that CaCO 3 in soils led to Zn precipitation as ZnCO 3 . Osman et al (1980) demonstrated that CaCO 3 plays an important role in Zn deficiency which is found in Egypt's calcareous soils. Morera et al (2002) found that the availability of Zn was remarkably low in soil with high carbonate content.…”

Section: Effect Of Organic Wastes and Incubation Time On Dynamics Of mentioning

confidence: 99%

Dynamics of Organic C Mineralization and the Mobile Fraction of Heavy Metals in a Calcareous Soil Incubated with Organic Wastes

Usman

Kuzyakov

Stahr

2004

Water, Air, & Soil Pollution

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Abstract. Organic wastes such as sewage sludge and compost increase the input of carbon and nutrients to the soil. However, sewage sludge-applied heavy metals, and organic pollutants adversely affect soil biochemical properties. Therefore, an incubation experiment lasting 90 days was carried out to evaluate the effect of the addition of two sources of organic C: sewage sludge or composted turf and plant residues to a calcareous soil at three rates (15, 45, and 90 t of dry matter ha −1 ) on pH, EC, dissolved organic C, humic substances C, organic matter mineralization, microbial biomass C, and metabolic quotient. The mobile fraction of heavy metals (Zn, Cd, Cu, Ni, and Pb) extracted by NH 4 NO 3 was also investigated.The addition of sewage sludge decreased soil pH and increased soil salinity to a greater extent than the addition of compost. Both sewage sludge and compost increased significantly the values of the cumulative C mineralized, dissolved organic C, humic and fulvic acid C, microbial biomass C, and metabolic quotient (qCO 2 ), especially with increasing application rate. Compared to compost, the addition of sewage sludge caused higher increases in the values of these parameters. The values of dissolved organic C, fulvic acid C, microbial biomass C, metabolic quotient, and C/N ratio tended to decrease with time. The soil treated with sewage sludge showed a significant increase in the mobile fractions of Zn, Cd, Cu, and Ni and a significant decrease in the mobile fraction of Pb compared to control. The high application rate of compost resulted in the lowest mobility of Cu, Ni, and Pb. The results suggest that biochemical properties of calcareous soil can be enhanced by both organic wastes. But, the high salinity and extractability of heavy metals, due to the addition of sewage sludge, may limit the application of sewage sludge.

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Zinc adsorption by a calcareous soil. Copper interaction

Mesquita¹,

Silva²

1996

Geoderma

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Effect of carbonate in clay fraction on fixation of zinc

Cited by 6 publications

References 11 publications

The effect of calcium carbonate content on the zinc quantity-intensity relationship in some soils of Mosul, Irak

The effect of calcium carbonate content on the zinc quantity-intensity relationship in some soils of Mosul, Irak

Dynamics of Organic C Mineralization and the Mobile Fraction of Heavy Metals in a Calcareous Soil Incubated with Organic Wastes

Zinc adsorption by a calcareous soil. Copper interaction

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