Heavy Metals as Essential Nutrients

Rengel, Zdenko

doi:10.1007/978-3-662-07745-0_11

Cited by 25 publications

(9 citation statements)

References 99 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fe, Mn, Cu and Zn are essential micro-nutrients for plant growth and important for gene expression and biosynthesis of proteins [24] [25]. Available Fe, Mn, Cu and Zn contents tended to decrease with increasing soil depth, which might be controlled by plant cycling and soil pH [23] [25].…”

Section: Vertical Distribution Of Soil Properties Of Urban Parksmentioning

confidence: 99%

Effect of Plant Roots on Soil Nutrient Distributions in Shanghai Urban Landscapes

Liang¹,

HaiLan²,

GuanJun³

2016

AJPS

View full text Add to dashboard Cite

Twenty-seven surface soil samples were collected from four landscape sites in Shanghai, and seven soil profile samples were gathered from the two older sites for evaluation of horizontal and vertical distribution of soil properties to reveal their relationship with plant roots. Results indicated that urban soil had significant heterogeneities. Soil total nitrogen was significantly correlated with organic matter and total potassium was more abundant than total phosphorus. The available contents of iron, manganese, zinc and copper were higher than the standards for plant growth established by Soltanpour. pH and electrical conductivity increased with increasing soil vertical depth, possibly due to leaching, while the nutrients limiting plant growth such as nitrogen, phosphorus, potassium, iron, copper and zinc had more shallow distributions due to absorption by plant roots. However, with the increasing of soil depth, contents of magnesium, sodium, sulfur and chloride increased due to leaching and bio-cycling, which was further shown by the correlation analysis.

show abstract

Section: Vertical Distribution Of Soil Properties Of Urban Parksmentioning

confidence: 99%

Effect of Plant Roots on Soil Nutrient Distributions in Shanghai Urban Landscapes

Liang¹,

HaiLan²,

GuanJun³

2016

AJPS

View full text Add to dashboard Cite

show abstract

“…Micronutrients are essential for biosynthesis and function of nucleic acids, growth substances, chlorophyll, secondary metabolites and carbohydrates as well as for stress resistance. The supply of micronutrients is also important for the integrity of biological membranes (Rengel, 2004).…”

Section: Introductionmentioning

confidence: 99%

Heavy metal contamination of soil in mechanic workshops

Ameh¹,

Mohammed-Dabo²,

Ibrahim³

et al. 2012

Int. J. Bio. Chem. Sci

View full text Add to dashboard Cite

The distribution of metal in soil from mechanic workshops around Zaria, Nigeria (Latitude: 11° 4' 0 N, Longitude: 7° 42' 0 E) was studied. The types of mechanic workshops considered were motorcycle, motorcar, truck/lorries and generator set. The soils were sampled in August 2010. The results indicated that there was an increase in the metal content of soil in all types of mechanic workshops. The heavy metal (nickel, copper, zinc, lead and arsenic) content of the soil was compared with recommended limits. The percentage composition of some of the heavy metals, in many of the samples, were found to be in excess of the considered set limit, particularly for lead for which the percentage of soil samples analyzed from motorcycle, motorcar, truck/lories and generator set mechanic workshops in excess of the considered recommended set limit was found to be 88.89, 100, 100 and 100% respectively. 11.1% of all the samples analyzed were found to contain arsenic in excess of recommended limit. Statistical analysis of the heavy metal content (one-way analysis of variance) indicated that the Zn and Pb contents of soil from mechanic workshops were not functions of the workshop type (P > 0.05) but the nickel and copper contents were found to be dependent on workshop type (P < 0.05).

show abstract

“…The contents of micronutrients differ by prevailing environmental conditions in soils [2]. Mineral elements plays vital role in plants enzymatic activities and other plant functions [3]. The application of small quantities of these nutrients in soils with micronutrient deficiencies, enhance crop production [4], while large quantities added to the soil alters grain size and harmful to human health.…”

Section: Introductionmentioning

confidence: 99%

Status and Speciation of Silicon and Its Interaction with Physico-Chemical Properties

Efenudu

Orhue

Ikeh

et al. 2021

AJEE

View full text Add to dashboard Cite

The effectiveness of three different extractants soil mixtures—HCl, HCl + H2S04, and DTPA-TEA, in order to determine Si from soil and the forms of Silicon as influenced by different parent materials under acidic medium. Seven forms of Silicon; namely water soluble, specifically adsorbed, oxides bound, organic matter bound, exchangeable, residual, total viz sequential fractionation. Extractable Si value established in this study was (50.0 mg kg-1), indicating negative effect on plant physiology. The physico-chemical properties decreased significantly with increase in soil depth vs soil parent materials. In addition, the forms of Si in the parent materials decreased in the pattern RES, bound residual fractions > EXC, soluble & exchangeable fractions > OM, organic matter fraction. Among the properties the silt fraction, pH & OM significantly and positively correlated with the forms of silicon, with negative correlation vs clay which maybe due to silicon adsorption by clayey fraction of the soil (redox). Therefore the soil maybe be maintained and conserved for farming activities.

show abstract

Heavy Metals as Essential Nutrients

Cited by 25 publications

References 99 publications

Effect of Plant Roots on Soil Nutrient Distributions in Shanghai Urban Landscapes

Effect of Plant Roots on Soil Nutrient Distributions in Shanghai Urban Landscapes

Heavy metal contamination of soil in mechanic workshops

Status and Speciation of Silicon and Its Interaction with Physico-Chemical Properties

Contact Info

Product

Resources

About