Elementary composition, humus composition, and decomposition in soil of charred grassland plants
Open Access
- 1 December 1991
- journal article
- research article
- Published by Taylor & Francis in Soil Science and Plant Nutrition
- Vol. 37 (4) , 651-657
- https://doi.org/10.1080/00380768.1991.10416933
Abstract
Charred plant residues collected after the burning of grassland vegetation in which Susuki plants predominated (Eulalia, Miscanthus sinensis A.), were divided into 5 particle size fractions of >2, 1-2, 0.5-1.0, 0.25-0.5, and 3 treatment of the fractions. The extraction ratio of organic matter, amounts of humic and fulvic acids, and ratio of humic acid in the NaOH-extractable organic matter decreased with decreasing particle size. The humic acids produced belonged to A type, and their absorption curves were similar to those of A type soil humic acids. 5) When several fractions were separately added to a sample of volcanic ash soil and incubated at 25°C under moist conditions, their fractions were hardly decomposed by microorganisms even after 40 weeks.Keywords
This publication has 5 references indexed in Scilit:
- Comparison of Humic Acids from Charred Residues of Susuki (Eulalia,Miscanthus sinensisA.) and from the a Horizons of Volcanic Ash SoilsSoil Science and Plant Nutrition, 1986
- Humus Composition of Charred Plant ResiduesSoil Science and Plant Nutrition, 1986
- A POSSIBLE SOURCE OF HUMIC ACIDS IN VOLCANIC ASH SOILS IN JAPAN—CHARRED RESIDUE OF Miscanthus sinensisSoil Science, 1986
- Carbonaceous materials as a possible source of soil humusSoil Science and Plant Nutrition, 1983
- Humus composition of mountain soils in Central Japan with special reference to the distribution of P type humic acidSoil Science and Plant Nutrition, 1967