|
| << previous | next >> |
Journal description
All volumes of the corresponding journal
All issues of the corresponding volume
All articles of the corresponding issues
Details for article 164 of 204 found articles
| Title: |
THE EVALUATION OF CHANGES IN SOIL HUMIC SUBSTANCES COMPOSITION AND THEIR NATURE IN LONG-TERM EXPERIMENTS OF GERMANY AND RUSSIA |
| Author: |
Ismagilova, Nailia Habibovna Korschens, Martin |
| Appeared in: |
Archives of agronomy & soil science |
| Paging: | Volume 49 (2003) nr. 2 pages 141-147 |
| Year: |
2003-04 |
| Contents: |
The results of investigation of soil organic matter (SOM), its mobile and more strongly bound forms in long-term experiments on loamy soddy podzolic and grey soils of Russia and Loess-Chernozem of the Static Fertilization Experiment at Bad Lauchstadt in Germany are presented. The method of fractionation using successively 0.1 n sodium hydroxide (fraction 1), the mixture 0.1 m sodium pyrophosphate (fraction 2) and finally 0.02 n sodium hydroxide extraction on water bath (fraction 3) has been applied for isolation of humic substances differently bound with mineral part of soil. The results show that mineral and organic fertilizers differ in their effect on the composition of humic substances. The above mentioned properties of bound SOM fractions may possibly serve as indicators of manuring intensity and accumulation of decomposable SOM in dark soils of temperate climatic conditions initially characterized by predominance of humic substances with high optical density. The results show the importance of an optimum level of decomposable organic matter in soil and corresponding optimum fertilizer systems for every crop in rotation. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 164 of 204 found articles
| << previous | next >> |