| Issue |
E3S Web Conf.
Volume 31, 2018
The 2nd International Conference on Energy, Environmental and Information System (ICENIS 2017)
|
|
|---|---|---|
| Article Number | 05012 | |
| Number of page(s) | 3 | |
| Section | 05. Waste Management | |
| DOI | https://doi.org/10.1051/e3sconf/20183105012 | |
| Published online | 21 February 2018 | |
Use of a germination bioassay to test compost maturity in Tekelan Village
Department of Environmental Engineering, Faculty of Engineering, Diponegoro University, Semarang - Indonesia
* Corresponding author: purwono.ga@gmail.com
Livestock waste from cattle farms in Tekelan village, Getasan Subdistrict, Semarang Regency can be grouped into three types, namely solid waste, slurry and waste water. Solid waste (cow dung) was processed into compost, while slurry and waste water were used to make liquid fertilizer. This compost was used as a component of planting media in horticultural crops and potted plants production. We evaluated the toxicity (phytochemical and ecotoxicological) test of compost by using germination index (GI). Vigna radiata seeds are sown on filter paper dampened with compost extract for different times. GI was calculated by relative germination (G) and relative radical length (L). The germination index (GI) = G / G0 x L / L0 x 100, where G0 and L0 are values obtained by distilled water as a control. The results showed that germination bioassay and radical length using aquades and groundwater in Tekelan village did not affect the radical length of Vigna radiata . Technically, groundwater in Tekelan village can be used as a germination bioassay control. The cow dung compost substrate appears to have a major influence on compost toxicity. Mature compost was produced on day 14 with a GI of 104.03.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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