Premium
Der Einfluß der Primärlößmelioration auf die K‐Fixierung, weitere chemische Eigenschaften und den Ertrag von Parabraunerden
Author(s) -
Aeppli H.,
Harrach T.
Publication year - 1971
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.19711300202
Subject(s) - calcareous , loess , subsoil , chemistry , saturation (graph theory) , environmental chemistry , environmental science , soil science , soil water , botany , geology , biology , mathematics , combinatorics , geomorphology
The Influence of the Primary Loess Amelioration on the K Fixation, other Chemical Characteristics and the Yield of Parabraunerden The pH‐values, carbonate content and the Ca‐saturation of the top soil increase by adding calcareous loess to a loessial soil, whereas the H + Al‐saturation decreases. During a two years experiment no change occured on the subsoil. It seems that there is no increased decomposition of organic substance, the decrease of the C‐content corresponds with the dilution which took place. In the A p ‐horizon the calcareous loess causes a decrease of exchangeable K, whereas K‐fixation increases considerably. On a soil poorly supplied with nutrients the primary loess amelioration caused a yield decrease on account of the dilution and the additional fixation of K available for plants. On a well supplied soil a yield increase could be stated which probably can still be increases by fertilizing with additional K.