Techniques for Research on Manganese in Soil-Plant Systems

Uren, N. C.; Asher, C. J.; Longnecker, Nancy

doi:10.1007/978-94-009-2817-6_21

Cited by 19 publications

(6 citation statements)

References 80 publications

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“…Re-moistening of dry soil induces microbial oxidation of Mn with the concomitant decrease in available Mn (Uren et al, 1988); autoclaving of soil would reverse this trend (Kitur and Frye, 1983;Liegel, 1983). Extractable Mn in soils not receiving Mn application increased when incubation temperatures were raised (Fujimoto and Sherman, 1946;Boken, 1952;Shuman, 1980;Reid and Racz, 1985).…”

Section: Introductionmentioning

confidence: 97%

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Effects of temperature on extractable manganese and distribution of manganese among soil fractions

Tong

Rengel

Graham

1995

Communications in Soil Science and Plant Analysis

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Fertiliser manganese (Mn) does not have good residual value in calcareous soils in southern Australia. The interaction of biotic and abiotic factors determining availability of fertiliser Mn is not well understood. Effects of autoclaving and temperature of moist incubation on DTPA (diethylenetriaminepentaacetic acid)-extractable Mn and the distribution of Mn among soil fractions was tested in a sandy, calcareous Wangary soil. In the topsoil receiving 10 or 40 mg Mn/kg, higher incubation temperature (26°C) accelerated a decrease in DTPA-Mn and weakly adsorbed Mn during 0-14 d incubation compared with the lower temperature (15/10°C, 12 h each) regardless of whether soil was autoclaved or not. In a Wangary soil mixed in 1:1 ratio of topsoil to subsoil and supplemented with Mn, higher temperature during soil incubation resulted in higher DTPA-Mn compared to the lower incubation temperature after 36 d. The decrease in weakly adsorbed Mn with incubation time was mainly due to: (i) Mn fixation by chemisorption on calcite, and (ii) Mn oxidation by soil microflora; the higher the incubation temperature, the quicker the fixation. Autoclaving of the soil fertilised with Mn caused the amounts of Mn in various soil fractions to remain almost constant throughout the 24-d incubation period regardless of the incubation 1. Present address:

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Section: Introductionmentioning

confidence: 97%

“…Manganese availability is influenced by chemical and microbial interactions in the soil (Webb et al, 1993) as well as by plant factors (Graham, 1988). Increased incubation time in wet conditions and lower incubation temperatures would decrease Mn availability (Uren et al, 1988).…”

Section: Introductionmentioning

confidence: 99%

Effects of temperature on extractable manganese and distribution of manganese among soil fractions

Tong

Rengel

Graham

1995

Communications in Soil Science and Plant Analysis

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“…[14] Spring Wheat Grown on Alkaline Soils 97 [19] After the solutions on the surface of the soils had dried, the MnO and MnSO 4 sources were added to the soil surface as finely ground [<0.02 mm] dry powders. [20] Twelve seeds of Triticum aestivum L. (cv. The soils were then watered to 75% field capacity with deionized water and maintained at 75% of field capacity for 42 days so the Mn could react with soil to promote reactions between soil and Mn before sowing wheat to promote Mn deficiency in wheat.…”

Section: Methodsmentioning

confidence: 99%

“…The soil in each pot was thoroughly mixed by shaking the soil in the plastic bag, avoiding all possible source of contamination. [20] During the growth of the plants, nitrogen (purified ammonium nitrate, 241 mg/pot) was applied every seven days. [20] Twelve seeds of Triticum aestivum L. (cv.…”

Section: Methodsmentioning

confidence: 99%

Comparing Manganese Sources for Spring Wheat Grown on Alkaline Soils

Brennan¹,

Bolland

2004

Journal of Plant Nutrition

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The effectiveness of manganese (Mn) sulfate (28% Mn) and manganese oxide (77.5% Mn) as Mn fertilizers for spring wheat (Triticum aestivum L. cv. Brookton) was compared in a glasshouse experiment using two alkaline soils from south-western Australia. Yield of 56-day-old shoots and Mn content (Mn concentration multiplied by yield) of the shoots was used to compare effectiveness of the sources. Both sources were applied as fine powders at equivalent amounts of Mn and were mixed throughout both soils. For both soils, relative to the Mn sulfate (MnSO 4 ), the Mn oxide (MnO) was about 40% as effective for producing shoot dry matter ORDER REPRINTS and about half as effective at increasing the Mn content of shoot dry matter. Critical concentration (mg/kg) for producing 90% of maximum yield was about 11 for youngest emerged blades and 17 for whole shoots.

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“…Além disso, atribui-se um efeito direto de alguns microrganismos do solo, atuando como oxidantes do Mn, o que reduz sua disponibilidade (Ghiorse, 1988). Como os processos de redução de Mn no solo, além de microbianos, também são de origem abiótica (Rengel, 1997), este último continua a ocorrer mesmo após a esterilização, o que pode aumentar sua disponibilidade a níveis tóxicos para as plantas (Uren et al, 1988), uma vez que os microrganismos que atuam no sentido contrário, ou seja, diretamente na oxidação ou na produção de quelatos orgânicos, são eliminados.…”

Section: Introductionunclassified

Interações entre micorriza arbuscular, rizobactérias, fósforo e silicio na manifestação da toxidez de manganês em soja.

Nogueira¹

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Techniques for Research on Manganese in Soil-Plant Systems

Cited by 19 publications

References 80 publications

Effects of temperature on extractable manganese and distribution of manganese among soil fractions

Effects of temperature on extractable manganese and distribution of manganese among soil fractions

Comparing Manganese Sources for Spring Wheat Grown on Alkaline Soils

Interações entre micorriza arbuscular, rizobactérias, fósforo e silicio na manifestação da toxidez de manganês em soja.

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