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Publication
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| Research Title |
Humic Acid in Different Species of Earthworm’s Casts |
| Date of Distribution |
14 February 2019 |
| Conference |
| Title of the Conference |
the 10th International Conference on Environmental and Rural Development |
| Organiser |
Kasetsart University, Chalermphrakiat Sakon Nakhon Province Campus, Thailand. |
| Conference Place |
International Society of Environmental and Rural Development |
| Province/State |
Sakon Nakhon |
| Conference Date |
14 February 2019 |
| To |
16 February 2019 |
| Proceeding Paper |
| Volume |
2019 |
| Issue |
9 |
| Page |
181 |
| Editors/edition/publisher |
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| Abstract |
Earthworms play an important role in breaking down dead organic matter in a process known as decomposition. The castings by earthworm this natural material is the byproduct of the food digested by the worms. The humic acid in earthworm castings stimulate plant growth, even in very low concentrations. Humic substances play a key role in the global carbon cycling and the sequestration of micropollutants in soil and plant growth and humic acid is in an ionically distributed state in which it can easily be absorbed by the plant, over and above any normal mineral nutrients. The transformation of these substances by earthworms. The aims of this study are therefore to study on the influence of aging earthworm casts to humic acid on different earthworm species. The oven-dried weight of earthworm casts were quantified in laboratory. Parameters of casts such as Humic acid and Fulvic acid in casts of different earthworm specie Eisenia foetida, Eudrilus eugeniae, Pheretima peguana and Pheretima sp were analysed.. The results found that the humic acid found higher in aged cast (0.0836 mg/g) than the fresh cast (0.0340 mg/g), significantly (P <0.05). The cast of Pheretima peguana and Eudrilus eugeniae humic acid content in values were highest ranged from 0.0845, 0.0762 mg/g and lower of Pheretima sp (0.049 mg/g), Eisenia foetida(0.0335mg/g). Fulvic acid content were significantly (P <0.05) found in aged casts ranged from 0.0636 mg/g, fresh cast 0.0554 mg/g. In conclusion, the humic acid and fulvic acid were higher in the aged casts of different earthworm species. |
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| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
นานาชาติ |
| Type of Proceeding |
Abstract |
| Type of Presentation |
Poster |
| Part of thesis |
true |
| Presentation awarding |
false |
| Attach file |
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| Citation |
0
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Journal Publication
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