Investigations on the determination of the available manganese content of soils

Boken, Else

doi:10.1007/bf01394155

Cited by 16 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The suspensions were then filtered and Mn in the filtrates measured by AAS, using an aidacetylene flame and standards prepared in the appropriate extractant. (i) Exchangeable Mn was determined with either M CH3COONH4 (NH40Ac) adjusted to pH 7.0 (Leeper, 1947), M Mg(N03)2 (Boken, 1958) or M Zn(NO&. (ii) EDTA extractable Mn was determined with a 1% solution of HNaCaEDTA in M NH40Ac at pH 8.0 (Beckwith, 1955).…”

Section: Exchangeable Extractable and Reducible M Nmentioning

confidence: 99%

The forms of occurrence of manganese in some acidic soils

Jarvis¹

1984

Journal of Soil Science

View full text Add to dashboard Cite

The forms of occurrence of Mn were examined in some acidic surface and sub-soils from areas of permanent grassland using chemical extractants. Despite high total contents of Mn in some of the soils and low pH, only minor proportions occurred as exchangeable Mn2+. Much larger proportions were present as reducible hydrous oxides, e.g. up to 38% and 54% of the total contents in surface and subsoils, respectively, were present as hydroquinone extractable, or easily reducible, Mn. Reducible forms ofMn were poorly correlated with other more mobile forms. Large proportions of the total Mn contents were accounted for when estimates of different fractions were calculated from differences in amounts extracted by different individual extractants, i.e. M NH,OAc, 0.2% hydroquinone, 0.1 M pyrophosphate, and ammonium oxalate. The distribution of Mn amongst the different fractions as determined by a sequential fractionation scheme differed markedly from the distribution calculated by differences. In particular, there was a marked change in form after extraction with pyrophosphate.

show abstract

Section: Exchangeable Extractable and Reducible M Nmentioning

confidence: 99%

The forms of occurrence of manganese in some acidic soils

Jarvis¹

1984

Journal of Soil Science

View full text Add to dashboard Cite

show abstract

“…Although CH 3 COONH 4 extracts at the pH of the extractant, Mg (NO 3 ) 2 is likely to extract at the pH of the soil (Boken, 1958). Thus, Mg(NO 3 ) 2 -extractable Mn is probably a better measure of exchangeable Mn than is CH 3 COONH 4 -extractableMn at pH 7 because a portion of the exchangeable Mn in the CH 3 COONH 4 system may be oxidized to an insoluble form at this high pH.…”

Section: Relationship Between Mn Tests and Soil Propertiesmentioning

confidence: 99%

“…For soils with diverse properties, total soil Mn has proved an inadequate predictor of Mn uptake by plants (Mulder & Gerretsen, 1952). Soil content of exchangeable Mn is often related directly to Mn uptake (Piper, 1931;Steenbjerg, 1935;Heintze, 1938) and has generally correlated closely with the incidence of Mn deficiency in plants (Sherman & Harmer, 1943;Dion, Mann & Heintze, 1947;Boken, 1958). However, the variability associated with predicting available Mn from an exchangeable Mn test often limits its complete acceptance when applied to a group of soils developed under differing environments.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of tests for predicting the availability of soil manganese to plants

1969

View full text Add to dashboard Cite

SUMMARYEight soil Mn tests, namely, CH3COONH4-, Mg(NO3)2-, H3PO4-, hydroquinone-, 3m-NH4H2PO4-,1·5m-NH4H2PO4- and EDTA-extractable Mn and total Mn were evaluated for their ability to predict Mn uptake by maize (Zea mays L.) on 63 soils of diverse origin. Regression equations were derived by comparing Mn uptake with each test in combination with pH. The best prediction of Mn uptake was provided by a combination of CH3COONH4-extractable Mn and pH; 52·9 % of the variability in Mn uptake was accounted for by these two variables. EDTA and H3PO4-extractable Mn were superior to the other soil Mn tests in predicting Mn uptake.The effect of soil properties on the extractability of soil Mn by each extractant was analysed statistically. Only with hydroquinone-extractable Mn did the soil variables investigated account for a major portion of the variability in the Mn test. The soil variables most often correlated significantly with the Mn test were pH and total Mn. Organic carbon and clay contents were significant only in determining EDTA- and Mg(NO3)2-extractable Mn, respectively.

show abstract

“…Die groRe Bedeutung des Austausch-Mangans (nach der zwar nicht ganz exakten, aber ublichen Definition schlieRt das Austausch-Mangan dds Mangan der Bodenlosung, das in den meisten Boden nur einen kleinen Bruchteil davon ausmacht, ein) wurde zuerst von Steenbjerg (1933) erkannt und in vielen Arbeiten anderer Autoren bestatigt, SO z. B. von Heintze (1946) und neuerdings wieder von Schachtschabel (1956Schachtschabel ( und 1953 und yon Boken (1958). E r h s o n (1953) Fur die praktische Bodeiiuntersuchung zur Ermittlung de.s Mangnn-Versorgungssgrades (Einzellieiten: siehe Original'arbeit) resultiert aus den Untersuchungen, dal3 sowohl bei den Braunerden Ostholsteins als auch bei den Fehmarnboden mit Hilfe dcr angegebenen Formeln der multiplen Regresion aus drei BodenIdaten, namlich dem pH-Wert, dem aktiven Mangan und dem T-Wert der zu erwartende MangangehaPt der Testpflanzen leicht errechnet werden kann und daB man dann auf Grund der errechneten Pflanzengehalte den Mangan-Versorgungsgrad a n Hand eines Grenzwertsch'emas ermitteln kann.…”

Section: I S K U S S I O Nunclassified

Untersuchungen zur Manganversorgung von Feldpflanzen auf einigen Bodentypen Schleswig-Holsteins

Finck

1960

Z. Pflanzenernaehr. Dueng. Bodenk.

View full text Add to dashboard Cite

Investigations on the determination of the available manganese content of soils

Cited by 16 publications

References 5 publications

The forms of occurrence of manganese in some acidic soils

The forms of occurrence of manganese in some acidic soils

Evaluation of tests for predicting the availability of soil manganese to plants

Untersuchungen zur Manganversorgung von Feldpflanzen auf einigen Bodentypen Schleswig-Holsteins

Contact Info

Product

Resources

About