Premium
PROLONGED LEACHING OF ORTHIC BLACK Ah MATERIAL WITH WATER AND AQUEOUS EXTRACTS OF POPULUS TREMULOIDES AND P. BALSAMIFERA LEAVES
Author(s) -
DORMAAR J. F.
Publication year - 1971
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1971.tb01623.x
Subject(s) - distilled water , leaching (pedology) , aqueous solution , salicaceae , chemistry , soil water , botany , aqueous extract , agronomy , horticulture , woody plant , biology , environmental science , soil science , chromatography , medicine , traditional medicine
Summary Cylinders filled with Orthic Black Ah material were leached over a 2‐year period with distilled water or with aqueous extracts of aspen or black poplar leaves that were collected late in the growing season. Actual losses from the soil and chemical analyses of the leached soil indicated that the aqueous extract of aspen poplar leaves imposed greater changes on the chemical properties of the soil than did the extract of black poplar leaves. These changes were particularly noticeable for pH, total and exchangeable Ca, and 0.1N NaOH‐extractable C. The aqueous extract of aspen poplar leaves acidified the soil more strongly than the extract of black poplar leaves, even though there was little difference between the two extracts in polyphenol and polysaccharide content and the total acidity of the black poplar extract was about twice that of the aspen poplar extract. Aqueous extract of weathered aspen poplar leaves was no more effective than distilled water.