Copper in Nutrition

Gilbert, Frank A.

doi:10.1016/s0065-2113(08)60308-9

Cited by 25 publications

(6 citation statements)

References 77 publications

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“…Kornegay et al (1976) found Cu to be immobile in soil with high OM due to the complexation of Cu by OM. Several other researchers noted that Cu in organic soils is held tenaciously by the OM (Gilbert, 1952;Jones, 1967;Gigliotti et al, 2009;He et al, 2011). Therefore, when the OM content is high, Cu bioavailability is likely low (Kornegay et al, 1976;LHerroux et al, 1997;Bolan et al, 2004;Gerzabek et al, 2006;Lair et al, 2007).…”

Section: Cu Availabilitymentioning

confidence: 99%

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Effects of inorganic v. organic copper on denitrification in agricultural soil

Wang

Burger

Doane

et al. 2013

Advances in Animal Biosciences

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Section: Cu Availabilitymentioning

confidence: 99%

“…Soil with high organic matter (OM) or clay content often have low Cu bioavailability (Lucas, 1948;Gilbert, 1952;Elliott et al, 1986;LHerroux et al, 1997;Bolan et al, 2004;Gerzabek et al, 2006;Lair et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Effects of inorganic v. organic copper on denitrification in agricultural soil

Wang

Burger

Doane

et al. 2013

Advances in Animal Biosciences

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“…Several studies have shown that applied or deposited Cu persists in soil because it seems to be strongly fixed by organic matter, clay minerals and oxides of Fe, Al, and Mn (Gilbert, 1952;Schnitzer, 1969). In agricultural soils Cu may be expected also to accumulate in the surface from fungicide applications, soil amendments, and by accumulation from crop residues (Walsh et al, 1972).…”

Section: Etude De La Distribution Du Cuivre Dans Un Sol Sableux Acidementioning

confidence: 99%

Study of the distribution of copper in an acid sandy vineyard soil by three different methods

Flores-Vélez¹,

Ducaroir²,

Jaunet³

et al. 1996

European J Soil Science

140

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Summary Copper sulphate (Bordeaux mixture) has been used as a fungicide against mildew in vineyards for more than a hundred years. This treatment has resulted in significant Cu accumulation in soils (from 100 to 1500 mg kg−1). It is desirable to determine the distribution of Cu in these soils to predict if this element is potentially toxic. Several speciation methods have been compared: sequential and single–step extractions, analytical transmission electron microscopy (ATEM, ASEM) and physical fractionation to study a profile of a vineyard acid soil in Beaujolais (France). Physical fractionation showed that copper is concentrated in the coarse organic fractions associated with plant residues and in the fine clay fraction. Analytical electron microscopy showed a great diversity of fixation sites (bacteria, amorphous organic and mineral compounds). Chemical sequential extractions showed that after the sequential extraction treatments, 60% of Cu was not extracted. Extraction data showed that in the case of an acid sandy soil, sequential chemical extraction did not seem to be sufficiently selective to speciate copper. In the single–step extractions study, the hydroxylamine treatment was the most selective. In the nonselective cases several phenomena may be responsible for the failure, the analytical electron microscopy study showed copper redistribution after certain single–step extractions were carried out. After comparing three different distribution methods we conclude that the distribution of this element in acid soils should be investigated by several analytical methods to establish the true speciation.

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“…Leaf Cu was positively correlated with leaf K, but negatively correlated with leaf Mg (Table 5). Gilbert (1952) reported greater yields of tobacco when Cu and K were both applied to the soil than when K was applied without Cu.…”

Section: Elemental Analyses Of Soils and Plantsmentioning

confidence: 98%

Cannabinoid Profile and Elemental Uptake of Cannabis sativa L. as Influenced by Soil Characteristics¹

Coffman¹,

Gentner²

1975

Agronomy Journal

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The consumption of Cannabis products (marihuana) derived from domestic and foreign sources persists in the United States despite its illegality and health hazards. The objectives of this investigation were: 1) to evaluate relationships between soil and plant elements, cannabinoids, and growth of Cannabis sativa L., and 2) to evaluate the practicality of using chemical analysis of Cannabis products to determine their geographic origin. Knowledge of geographic origin is useful to governmental agencies investigating illicit narcotic traffic. Cannabis sativa L. was grown on 11 different soils for 45 days in the greenhouse. Soils differed significantly in 15 measured elements and pH. Plants were grown from seed of Afghan origin. The following cannabinoids were extracted and measured from leaf tissue: cannabicyclol (CCC), cannabidiol (CBD), Δ9‐Tetrahydrocannabinol (Δ9THC), and cannabinol (CBN). Fifteen elements measured in leaf tissue and correlated with soil and cannabinoid measurements. Soil pH was negatively correlated with leaf concentrations of Mn, Fe, Zn, and S. Extractable soil Mg was negatively correlated with N, Δ9THC and CBD concentrations in leaf tissue (p < 0.05). Plant height was negatively correlated with Δ9THC concentration, suggesting enhancement of the narcotic principle of marihuana when grown under stress. Extractable soil P2O5 was negatively correlated with CBD concentration while extractable soil Zn was positively correlated with CCC concentration. Several correlations between soil and plant characteristics having potential value for determination of geographic origin of marihuana were elucidated. However, environmental, harvesting, and analytical procedures used by different workers which do not conform to one another could result in changes in the soil‐plant correlations reported herein. Thus, additional studies are required before determination of the geographic origin of Cannabis products by foliar analysis becomes feasible.

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Copper in Nutrition

Cited by 25 publications

References 77 publications

Effects of inorganic v. organic copper on denitrification in agricultural soil

Effects of inorganic v. organic copper on denitrification in agricultural soil

Study of the distribution of copper in an acid sandy vineyard soil by three different methods

Cannabinoid Profile and Elemental Uptake of Cannabis sativa L. as Influenced by Soil Characteristics¹

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Copper in Nutrition

Cited by 25 publications

References 77 publications

Effects of inorganic v. organic copper on denitrification in agricultural soil

Effects of inorganic v. organic copper on denitrification in agricultural soil

Study of the distribution of copper in an acid sandy vineyard soil by three different methods

Cannabinoid Profile and Elemental Uptake of Cannabis sativa L. as Influenced by Soil Characteristics1

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Cannabinoid Profile and Elemental Uptake of Cannabis sativa L. as Influenced by Soil Characteristics¹