Availability and spatial variability of copper, iron, manganese and zinc in soils
            of the State of Ceará, Brazil

Oliveira, Mara Lucia Jacinto; Valladares, Gustavo Souza; Vieira, Johnston Silva; Coelho, Ricardo Marques

doi:10.5935/1806-6690.20180042

Cited by 2 publications

(4 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The higher total concentrations within the lower portion could indicate a potential local lithology present within the area, which is a source of the micronutrients into the soil. 72 The simulated rainwater leachable concentrations of the metallic micronutrients demonstrated similar trends as the total concentrations (Figure 8). London demonstrated a higher average concentration leached for all elements within the upper portion of the soil.…”

Section: Total Leachablementioning

confidence: 57%

“…The 20-30 cm portion of the soil cores were determined to have a higher average total concentration for the elements, except for Fe within London and Ottawa. Compared to other studies, Oliveira et al, 72 the depth profile demonstrate the top portion of the surface soil (A horizon) to have higher total concentrations than the lower portion. However, the surface soil (A Horizon) ranges from 13 cm to 90 cm in-depth.…”

Section: Total Leachablementioning

confidence: 65%

“…The depths and the environments -oxygen being more present within the upper portion creating more hydroxides with Fe and Mn -have significant differences throughout all the fields. 40,72 The lack of consistent depth trends within the literature and the presented results for extracting trace elements, including metallic micronutrients, show natural variations within the environment. However, within the literature of Bengtsson et al (2006), the concentration is similar to what is shown in Figure 8, i.e., the majority of samples had a higher concentration leached out from the lower depths.…”

Section: Total Leachablementioning

confidence: 87%

See 2 more Smart Citations

A Comparative Study of Total and Leachable Concentrations of Metallic Micronutrients in Canadian Marginal and Agricultural Land used for Sorghum Production

Lewis

2024

Preprint

View full text Add to dashboard Cite

<p>Marginal lands have not been well studied. As part of a five-year project to develop low-cost and high production systems for growing sorghum biomass on marginal lands in Canada, this research focuses on analyzing the total and leachable concentrations of metallic micronutrients (Cu, Fe, Mn, Mo, and Ni) in soil samples collected from one agricultural (London) and two marginal sites (Ottawa and Simcoe) in Ontario. This thesis aims to understand the differences for the metallic micronutrients within marginal and fields and if the sorghum and N-fertilizer alters their leachability. The concentrations were determined using acid digestion (total) and synthetic precipitation leaching procedure (leachable). The results concluded that there were no consistent trends between the various hybrids and the application of N-fertilizer (Urea). The elements Mn and Fe demonstrated a moderately negative association between the leachable concentration and the fresh biomass of the sorghum. The altering of the soil moisture (oven-dried and field-moist) demonstrated that the dry soil had higher leaching concentrations than the moist soil. The first-year results indicated a potential influence of metallic micronutrients within the soil and sorghum growth.</p>

show abstract

Section: Total Leachablementioning

confidence: 57%

Section: Total Leachablementioning

confidence: 65%

Section: Total Leachablementioning

confidence: 87%

See 1 more Smart Citation

A Comparative Study of Total and Leachable Concentrations of Metallic Micronutrients in Canadian Marginal and Agricultural Land used for Sorghum Production

Lewis

2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Soil characteristics such as pH, calcium carbonate, organic matter, and interaction with other nutrients [12] influence the availability of Zn to plants. In the soils of the Brazilian semi-arid region, the Zn content is adequate for agricultural production [13]; however, plant species respond differently to exposure to Zn, where some can tolerate excess and even accumulate Zn in their organs [14].…”

Section: Introductionmentioning

confidence: 99%

Agronomic Biofortification and Yield of Beet Fertilization with Zinc

Costa,

Grangeiro,

Gonçalves

et al. 2023

Agronomy

View full text Add to dashboard Cite

Agronomic biofortification is a technique that helps reduce hidden hunger worldwide. Zinc (Zn) is important for human health and essential for plant development and growth. Thus, this research aimed to evaluate the effects of fertilization with Zn on agronomic performance and the agronomic biofortification of beet. Two experiments were conducted at the Rafael Fernandes Experimental Farm, belonging to the Federal Rural University of the Semi-arid, in Mossoró-RN. Each experiment was designed in complete randomized blocks, with five treatments and four replications. The treatments consisted of Zn doses (0, 1.5, 3.0, 4.5, and 6.0 kg ha−1). Zn fertilization did not affect the total and non-commercial yield of beet; however, the dose of 6.0 kg ha−1 of Zn promoted maximum commercial yield (20.34 t ha−1). At the maximum dose, higher Zn content was also observed in the nutritional status diagnosis leaf and higher Zn accumulation was found in the leaf, tuberous root, and throughout the plant. There was also an effect on postharvest variables. There was only tuberous root biofortification in 2021. The recommended dose in beet cultivation is 6.0 kg ha−1 of Zn.

show abstract

Availability and spatial variability of copper, iron, manganese and zinc in soils of the State of Ceará, Brazil

Cited by 2 publications

References 2 publications

A Comparative Study of Total and Leachable Concentrations of Metallic Micronutrients in Canadian Marginal and Agricultural Land used for Sorghum Production

A Comparative Study of Total and Leachable Concentrations of Metallic Micronutrients in Canadian Marginal and Agricultural Land used for Sorghum Production

Agronomic Biofortification and Yield of Beet Fertilization with Zinc

Contact Info

Product

Resources

About