TY  - JA
AU  - Molope,M.B.
AU  - Grieve,I.C.
AU  - Page,E.R.
TI  - Contributions by fungi and bacteria to aggregate stability of cultivated soils
PY  - 1987///
KW  - Bacteria
KW  - Ergosterol
KW  - Fungi
KW  - AGROVOC
KW  - Hyphae
KW  - Polysaccharides
KW  - Stability
KW  - Tillage
N1  - Ilustrations, graphs, references p. 76-77
N2  - Stability changes during ageing (sterile) or incubation (non-sterile) of both natural field aggregates and remoulded aggregates from five soils were studied for periods up to 30 days. Growth of fungal hyphae, estimated by ergosterol measurement, corresponded to temporary stability increases in both types of aggregates during the first 15 days. Thereafter, fungal hyphae disappeared and were replaced by actinomycetes and bacteria. Increased stabilitydue to entanglement by hyphae was comparable to that due to thixotropy in remoulded aggregates. Bacterial growth accompanied the fall in stability associated with fungal decline
T2  - Journal of Soil Science
ER  -