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| Titel: |
Effect of Earthworm Activities (Pheretema sp.) on the Changes in Soil Chemical Properties at Different Soil Depths of Nampong Soil Series (Ustoxic Quartzipsamment) in Northeast Thailand |
| Auteur: |
V. Trelo-ges S. Ruaysoongnern T. Chuasavathi |
| Verschenen in: |
Pakistan journal of biological sciences |
| Paginering: | Jaargang 5 (2002) nr. 1 pagina's 32-35 |
| Jaar: |
2002 |
| Inhoud: |
This field research was carried out at Udon Thani Province, Northeast Thailand with the use of Nampong soil series (Ustoxic Quartzipsamment) during 1998 to investigate the effect of earthworm (Pheretema sp.) activities on the changes in chemical properties of Nampong soil series at different soil depths in different eco-systems. Soil samples were taken once at the soil depth of 0-10, 10-20, 20-30 cm from locations with and without earthworm activities of the four eco-systems for the determinations of EC, pH, OM, available P, exchangeable K, Ca, and Mg. The results showed that earthworm activities, in most cases, have improved soil chemical properties at different depths in all locations studied and it was found that soil electrical conductivity (EC), organic matter (OM), available phosphorous (P), exchangeable potassium (K), calcium (Ca) and magnesium (Mg) values of tamarind orchard farm were much greater than those of other studied sites both with and without earthworm activities. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 7 van 30 gevonden artikelen
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