Chemistry of the Micronutrient Elements in Soils

Hodgson, J. F.

doi:10.1016/s0065-2113(08)60398-3

Cited by 231 publications

(77 citation statements)

References 123 publications

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“…Hodgson (1963) Zinc-enriched horizons in the soil profile are also often enriched with clay. According to Michell (1955), the clay fraction is often richer in some micronutrients than the associated soils.…”

mentioning

confidence: 99%

Association of Zinc With Oxides of Iron and Aluminum in Some Manitoba Soils

Kalbasi¹,

Racz²

1978

Can. J. Soil. Sci.

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mentioning

confidence: 99%

Association of Zinc With Oxides of Iron and Aluminum in Some Manitoba Soils

Kalbasi¹,

Racz²

1978

Can. J. Soil. Sci.

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“…The reduction in soil pH (6.9, 6.3, 6.1, and 5.8 at N rates of 0, 28, 56, and 84 kg/ ha, respectively) would increase soil-Fe and Mn solubility and uptake by plants (Hodgson 1963 andHorvath 1972), thus explaining the increase in endogenous forage Fe and Mn values with increasing N fertilization rates ( Table I). The N fertilizer tended to retard morphological development and produced plants with large, thin leaves and larger leaf:stem ratio (Ryder and Sneva 1961).…”

Section: Resultsmentioning

confidence: 99%

Effect of Soil Contamination on the Mineral Composition of Forage Fertilized with Nitrogen

Mayland¹,

Sneva²

1983

Journal of Range Management

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Mineral analysis of forage from a nitrogen (N) fertilizer, field study produced unexpectedly high iron (Fe) concentrations which were correlated with the N fertilizer level (r2=.92) and the percentage N in the forage (r2 =.94). The high Fe values were presumed to be associated with dust on the leaves. The objective of this study was to determine the level of soil contamination on the forage sample and the contribution of mineral in the contaminant to that measured in the sample. Soil contamination of plant tissue samples was calculated from the dilution of soil titanium (Ti) assuming that the uncontaminated tissue contained 0 g Ti/g. Tissue harvested from the 0, 28, 56, or 84 kg N/ha treatments contained 23, 49, 48, and 60 mg soil/ g, respectively. Significant N fertilizer effects would have been accepted for each element tested if soil contamination had been ignored. Correcting for contamination resulted in significant N-fertilizer effects on the concentrations of sodium, potassium, manganese, iron, and zinc but not magnesium or calcium in the forage. Some of these effects may be explained by the acidifying effect of the N fertilizer source.

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“…Segundo Hodgson (1963), os grupos carboxílicos e fenólicos parecem ser os mais importantes no suprimento de sítios para complexação.…”

Section: Introductionunclassified

“…Entretanto, somente para algumas situações, como a relatada por Wada & Abd-Elfattah (1978, a troca iônica tem sido apontada como o principal mecanismo de retenção de zinco pelas argilas. De maneira geral, a adsorção específica é a principal via de retenção de zinco por esses minerais (Hodgson, 1963).…”

Section: Introductionunclassified

Retenção de zinco em solos paulistas

Cunha¹,

Camargo

Kinjo³

1994

Bragantia

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Para avaliar os atributos do solo que têm maior influência na retenção de zinco, desenvolveram-se experimentos de laboratório com amostras de horizontes superficial e subsuperficial de quatro latossolos, dois podzólicos e uma terra roxa estruturada de grande importância geográfica e econômica no Estado de São Paulo. No experimento de retenção, as amostras foram equilibradas com soluções de Zn nas concentrações 0,0, 0,3, 0,6, 0,9, 1,5, 3,0, 6,0, 9,0, 12,0 e 24,0 (x 10-3)mg/dm³ de Zn usando-se uma solução de CaCl2 na concentração de 2 mol/m³ como suporte. Correlacionaram-se os coeficientes das equações de Langmuir e Freundlich com os diversos atributos do solo. Tendo em vista a possibilidade de estimar a energia de ligação e a adsorção máxima de zinco pelos coeficientes da equação de Langmuir, verificaram com auxílio de regressões linear simples e múltipla as correlações entre os atributos e esses coeficientes. Considerando a análise de regressão múltipla como o procedimento mais adequado, verificou-se que o coeficiente relativo de energia de ligação mostrou-se mais bem correlacionado com o pH, o Fe extraído com oxalato e o Al extraído com ditionito. Para a adsorção máxima, o pH e a CTC foram as propriedades que melhor explicaram esse coeficiente.

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Chemistry of the Micronutrient Elements in Soils

Cited by 231 publications

References 123 publications

Association of Zinc With Oxides of Iron and Aluminum in Some Manitoba Soils

Association of Zinc With Oxides of Iron and Aluminum in Some Manitoba Soils

Effect of Soil Contamination on the Mineral Composition of Forage Fertilized with Nitrogen

Retenção de zinco em solos paulistas

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