The Effect of Moisture Level and Incubation Time on the Chemical Equilibria of a Toledo Clay Loam Soil<sup>1</sup>

Harter, Robert D.; McLean, E. O.

doi:10.2134/agronj1965.00021962005700060020x

Cited by 25 publications

(13 citation statements)

References 4 publications

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“…Plants unable to maintain a high soil redox potential in these highly reducing soil environments when sulphate is present, for example in salt, brackish and some fresh (Armstrong & Boatman 1967) marshes, are likely to be exposed to sulphide if soil reduction occurs to the point of sulphate instability. Redox values in soils receiving sulphide in this experiment ranged from -50 mV to -125 mV, similar to the upper range, -75 mV to -150 mV, at which sulphate has been reported to become unstable (Harter & McLean 1965;Connell & Patrick 1968, respectively). Highly reduced soil conditions may impose a further stress on marsh flora due to the biological oxygen demand of the sediment microbial community, which may scavenge oxygen from plant roots.…”

Section: Discussionsupporting

confidence: 77%

Sulphide as a Soil Phytotoxin: Differential Responses in Two Marsh Species

Koch¹,

Mendelssohn²

1989

The Journal of Ecology

180

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. British Ecological Society is collaborating with JSTOR to digitize, preserve and extend access to Journal of Ecology. SUMMARY(1) A glasshouse experiment was conducted to investigate the effects of soil reduction and hydrogen sulphide accumulation on the growth of two marsh species, Spartina alterniflora and Panicuni henuitomon. Three treatmenis were applied to replicated soil cores containing intact vegetation: flooded aerated, flooded non-aerated, and flooded nonaerated with sulphide added.(2) The addition of 10 mM sulphide resulted in significantly less total biomass of S. alterniflora and P. hemitomon. Sulphide significantly reduced culm, root and rhizome biomass in P. hemitonon but only root biomass in S. alterniflora.(3) Paniicuni henlitomoni had no significant difference in total biomass between the aerated and non-aerated treatments, but S. alterniflora total biomass was lower in the aerated treatment than in the non-aerated treatment.(4) Redox potential (mV) in the soil cores of both species was highest in the aerated treatment, intermediate in the non-aerated treatment, and lowest in the sulphide treatment.(5) Spartina alterniflora and P. hemitomon soluble interstitial NH4 + and P043concentrations followed an inverse relationship to redox potential and differences between treatments were highly significant.(6) Root iron concentrations in S. alterniflora were an order of magnitude higher than iron concentrations in leaves of S. alterniiflora and roots and leaves of P. hemitomon. The majority of this root iron in S. alterniflora was associated with root coatings.

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Section: Discussionsupporting

confidence: 77%

Sulphide as a Soil Phytotoxin: Differential Responses in Two Marsh Species

Koch¹,

Mendelssohn²

1989

The Journal of Ecology

180

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“…This is not very surprising because soils have a substantial capacity for sorption of H2S (Smith et al, 1973), and there is good reason to believe that H2S produced by reduction of sulfate and other microbial processes in soils is rapidly converted to metallic sulfides (chiefly FeS) and that very little, if any, of this gas escapes to the atmosphere (see Ogata and Bower, 1965;Ponnamperuma, 1972;Kittrick, 1976;Ayotade, 1977). Harter and McLean (1965) were unable to detect evolution of H2S during incubation of a flooded Toledo soil that accumulated large amounts of sulfide (>2000 ILg/g soil) when incubated under waterlogged conditions. Swaby and Fedel (1973) used lead acetate paper to detect evolution of H2S from 56 Australian soils incubated under aerobic and waterlogged conditions after treatment with sulfate.…”

Section: Microbial Activity In Soilsmentioning

confidence: 99%

Role of Microorganisms in the Atmospheric Sulfur Cycle

Bremner

Steele

1978

Advances in Microbial Ecology

107

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“…During wet periods the manganese is reduced and during dry ones it is oxidized. In actual fact the moisture of the soil obviously has to exceed field capacity before the moisture can bring about the conversion of soil manganese into an exchangeable form (HARTER and McLEAN 1965). Such changes are also affected by temperature if the moisture of the soil is sufficiently high (CHENG et al 1971).…”

Section: Availability Of Manganesementioning

confidence: 99%

Determination of plant-available manganese in Finnish soils

Mäntylahti

1981

AFSci

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The aim of the study was to determine the plant-available manganese in the soil and to study which factors regulate the plant-available manganese. The material consisted of 193 mineral soils and 17 organogenic soils. Oats (Avena saliva L.), Italian ryegrass (Lolium multiflorum Lam.) and turnip rape (Brassica campestris oleifera L.) were used as the test plants in the pot experiments. A cation exchange resin method was developed for extracting soil manganese. The method enabled both exchangeable and reducible manganese to be determined. Exchangeable manganese comprised the manganese which was freely present in the soil solution in cationic form, and the manganese in cationic form which could be exchanged from the soil. Reducible manganese was the manganese reducible to the oxidation state, Mn2+, by the action of hydroquinone, hydroxylammonium chloride or ascorbic acid. The content of exchangeable manganese in the soil explained 33,7 % of the variation in the manganese content of the first yield of ryegrass. The greater the number of yields harvested, the smaller was the significance of the content of exchangeable manganese in the soil as an independent variable. On the other hand, when the content of reducible manganese in the soil was used as the independent variable, then the greater the number of yields harvested, the better it explained the variation in the manganese content of the yield. The content of manganese reduced by hydroxylammonium chloride explained 68,6 % of the variation in the manganese content of the fourth yield. The contents of exchangeable manganese and manganese reducible by ascorbic acid explained 73,4 % of the variation in the manganese content of the roots. The pH, the organic carbon content and the content of hydroquinone-reducible manganese in the soil explained 67,0 % of the variation in the content of exchangeable manganese in the plough layer of the mineral soils. The content of "total" manganese in the plough layer of the mineral soils explained 27,6 % of the variation in the content of ascorbic acid-reducible manganese. The plant stands increased the content of exchangeable manganese in the soil and decreased the redox potential of the soil in comparison to the incubated soils. The content of exchangeable manganese started to increase when the redox potential of the soil fell below 0,59 V. Adding glucose promoted the reduction of manganese in the soil, reduction appearing to be both biological and non-biological in origin. Soil moisture increased the content of exchangeable manganese when the moisture was higher than the field capacity. Liming decreased the content of exchangeable manganese in the soil more than would have been expected on the basis of the change in pH values. The manganese content and manganese uptake of the crop were also reduced. Adding large amounts of manganese (Mn 51,5 kg/ha*20 cm) did not prevent liming (calcite 14 t/ha*20cm) from reducing the manganese content of the yield.

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The Effect of Moisture Level and Incubation Time on the Chemical Equilibria of a Toledo Clay Loam Soil¹

Cited by 25 publications

References 4 publications

Sulphide as a Soil Phytotoxin: Differential Responses in Two Marsh Species

Sulphide as a Soil Phytotoxin: Differential Responses in Two Marsh Species

Role of Microorganisms in the Atmospheric Sulfur Cycle

Determination of plant-available manganese in Finnish soils

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The Effect of Moisture Level and Incubation Time on the Chemical Equilibria of a Toledo Clay Loam Soil1

Cited by 25 publications

References 4 publications

Sulphide as a Soil Phytotoxin: Differential Responses in Two Marsh Species

Sulphide as a Soil Phytotoxin: Differential Responses in Two Marsh Species

Role of Microorganisms in the Atmospheric Sulfur Cycle

Determination of plant-available manganese in Finnish soils

Contact Info

Product

Resources

About

The Effect of Moisture Level and Incubation Time on the Chemical Equilibria of a Toledo Clay Loam Soil¹