| UDC Class: | 631.4(673) |
|---|
| Title: | Caracteristicas dos Acidos Humicos de Alguns Solos de Angola (Characteristics of Humic Acids of Some Angolan Soils) |
|---|
| Subtitle: | Estudos, Ensaios e Documentos No. 87 |
|---|
| Language: | Portuguese |
|---|
| Subjects: | Humic Acid Study, Humic Acid Characteristics & Properties, Chemical Composition, Analytical Data, Soil Types, Profile Description. |
|---|
| Series Title: | Estudos, Ensaios e Documentos |
|---|
| Series Section Number: | No. 87 |
|---|
| Publication Date: | 1961 |
|---|
| Publisher’s Name: | Junta de Investigacoes do Ultramar (Overseas Research Council, Angola) |
|---|
| Place of Publication: | Lisbon, Portugal |
|---|
| Project Sponsor: | Junta de Investigacoes do Ultramar |
|---|
| Corporate Author: | Junta de Investigacoes do Ultramar |
|---|
| Author: | Pinto Ricardo, R. |
|---|
| Material Extent: | 89 Pages |
|---|
| Material Characteristics: | Printed report; with tables, figures, analytical data, list of references, summary in English & French, and list of technical reports published to date of the series "Estudos, Ensaios e Documentos" of the Junta de Investigacoes do Ultramar (Overseas Research Council) |
|---|
| Material Type: | Perfect Bound with printed hard cover |
|---|
| Summary Abstract: | This report presents the results of an study of seven samples of Humic Acids extracted from surface horizons of one profile of "peaty soil", two of "heavy black clay soils", and four of "ferralitic soils" from Angola. The humic acids of the three groups of soils show differences in most of the studied parameters. Although the differences between the several humic acids studied are relatively small, the humic acids of the "heavy black clay soils" are the least susceptible to hydration and swelling and those of the "peaty soil" are the most susceptible ones. The report contains an English & French summary. |
|---|
| Country Then: | Provincia de Angola |
|---|
| Country Now: | Angola |
|---|
| Region: | South West Africa - Angola |
|---|
| Nearest City: | Luanda |
|---|