Zinc Sorption in Calcareous Soils of the Kurdistan Region of Iraq

Mam-Rasul, Ghafoor Ahmed

doi:10.1097/ss.0000000000000252

Cited by 5 publications

(2 citation statements)

References 43 publications

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“…Furthermore, the availability of these nutrients are mainly affected by soil type, in particular, calcareous soils due to a high pH value. Iraqi soils are categorized in this class of soil [6,7].…”

Section: Introductionmentioning

confidence: 99%

Effect of Fertigation-Applied Sulfuric Acid on Phosphorus Availability and Some Microelements for Greenhouse Cucumber

Salih¹

2021

Pol. J. Environ. Stud.

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Aim of study: Essential nutrient elements such as P, Fe, Zn, Cu, B and Mn are mostly affected by soil pH. In calcareous soils, it is often difficult to obtain a pH of 6-6.5 the optimum soil pH value of phosphorus and micronutrients, as the goal of fertilizer best management practices is to match nutrient supply with crop requirements to optimize yield while minimizing nutrient losses to the environment. Material and methods: In order to study the addition of different amounts of sulfuric acid through irrigation to minimize soil pH value, and to improve the availability of the elements on cucumbers, experiments were carried out on two types of soil textures: Silty Clay Loam (S1) and Silty Clay (S2). The sulfuric acid was applied with different concentrations (0, 0.5, 1, 3, and 5 ml L -1 ). The elements' concentration was studied at three soil depths (D1 = 0-10, D2 = 10-20 and D3 = 20-30) cm. Results: The availability of P and micronutrients primarily increased in C4D3 in S2 soil. The P in this work was a positive correlation with Zn in both soils, while it showed a negative correlation with other micronutrients (Fe, Cu, B and Mn). Element concentration in plant tissue was studied in the plant residues after harvesting. The C3 was highly effective in increasing the elements (P, Fe, Zn, Cu, B, and Mn) in plant tissues in both soils, and had a significant effect on the increase in cucumber yield. Conclusion:The values of soil pH were regularly decreased by increasing sulfuric acid. Then, the availability of the studied elements was enhanced.

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Section: Introductionmentioning

confidence: 99%

Effect of Fertigation-Applied Sulfuric Acid on Phosphorus Availability and Some Microelements for Greenhouse Cucumber

Salih¹

2021

Pol. J. Environ. Stud.

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“…Zinc is an essential element for natural plant growth and development, but its content in the soil is low compared to other essential nutrients (Sidhu et al, 1977). Zinc deficiency is widespread in many soils, especially those with a basic reaction (high pH) (Mam-Rasul, 2019). Calcareous soils, which are estimated at 10-30 % of the total soils in the world, suffer from zinc deficiency (Akrawi et al, 2021) because adsorption, precipitation, and fixation mechanisms create many forms of zinc (Akrawi et al, 2021), including free ions in the soil solution and soil reaction (Pérez-Novo et al, 2011), complex and fixed in the mineral composition of carbonate minerals (Al-Kaysi, 2000), silicate clays (Dahiya et al, 2005), phosphate-Fe oxides interactions, or adsorbed on the solid surfaces of the soil particles (Dandanmozd & Hosseinpur, 2010).…”

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

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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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Pb and Cd chemisorption by acid mineral soils with variable Mn and organic matter contents

2020

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Zinc Sorption in Calcareous Soils of the Kurdistan Region of Iraq

Cited by 5 publications

References 43 publications

Effect of Fertigation-Applied Sulfuric Acid on Phosphorus Availability and Some Microelements for Greenhouse Cucumber

Effect of Fertigation-Applied Sulfuric Acid on Phosphorus Availability and Some Microelements for Greenhouse Cucumber

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

Pb and Cd chemisorption by acid mineral soils with variable Mn and organic matter contents

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