Die Klassifikation der Böden auf Grund der Zusammensetzung ihrer Kolloidfraktion. V. Versuch einer allgemeinen Bodenklassifikation

Reifenberg, A.

doi:10.1002/jpln.19330310410

Cited by 1 publication

(2 citation statements)

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“…-Silicalsesquioxide ratios in the colloids The data in Table 5 show that the SiO,/R,O, ratio varies from 1-65 to 2.09 and there is no correlation with pH of the soil. This is contrary to Reifenberg's (1933) conclusion that the ratio should be about 2. Furthermore, no particular ratio is peculiar to any of the three regions of ItaIy studied.…”

Section: Some Chemical Characteristics Of Several Italian Red Earthscontrasting

confidence: 92%

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The Red Earths and the Colloids of the Red Earths

Lisantí

1960

Journal of Soil Science

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The chemical composition of the soils and of the colloidal separates of twelve red earths from three widely differing locations in Italy has been determined. T h e red earths of southern Italy are characterized by low organic matter, little if any CaCO,, and appreciable quantities of soluble salts. Those of northern Italy have opposite characteristics. T h e SiO,/K,O, ratios of the colloids range from 1.60 to 2.09 and bear no relationship to location or climatic factors.It is concluded that similar pedogenetic processes have occurred throughout the Italian peninsula and are independent of geographical position or climatic conditions. In particular the SiO,/R,O, ratio of the colloids of the southern soils is not unusually low as has been suggested by other workers. W. 0. 1927. The determination of organic matter in soils by means of hydrogen peroxide. J. Agric. Res. 34,339-56. 231-4. di alcuni terreni italiani. Ann. Fac. Agr. Univ. (Bari), 6, 179-95. ROBINSON,ates, J. Agric. Sci. 6, 323-7.

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Section: Some Chemical Characteristics Of Several Italian Red Earthscontrasting

confidence: 92%

“…Many investigations of the problem have clearly shown that the red earths may not be identified only by their red colour. It has been suggested (Blanck, 1930;Reifenberg, 1933), without knowledge of the Italian soils, that the red earths may be characterized by a silica/sesquioxide ratio of approximately 2.…”

Section: Introductionmentioning

confidence: 99%

The Red Earths and the Colloids of the Red Earths

Lisantí

1960

Journal of Soil Science

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Die Klassifikation der Böden auf Grund der Zusammensetzung ihrer Kolloidfraktion. V. Versuch einer allgemeinen Bodenklassifikation

Cited by 1 publication

References 11 publications

The Red Earths and the Colloids of the Red Earths

The Red Earths and the Colloids of the Red Earths

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