Effect of Charcoal on the Quality of Vermicompost Produced With Water Hyacinth and Cow Manure.

Q2 Environmental Science
The Scientific World Journal Pub Date : 2025-03-24 eCollection Date: 2025-01-01 DOI:10.1155/tswj/1086347
Solomon Girmay Berhe, Ali Seid, Berhanu Abraha Tsegay, Shinjiro Sato, Getahun Yemata Lule
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引用次数: 0

Abstract

The significance of water hyacinth (Pontederia crassipes (C. Mart.) Solms (Pontederiaceae) vermicomposting lies in its ability to effectively manage its invasiveness while also improving soil fertility and supporting sustainable agricultural practices. This study evaluates the effects of charcoal addition on the composting followed by the vermicomposting of water hyacinth (WH) and cow manure, focusing on the growth, reproduction, and survival of Eisenia fetida earthworms and the quality of the resulting vermicompost. The treatments included WH and cow manure (2:1) with 7.5% charcoal (T1), 5% charcoal (T2), and without charcoal (T3). Composting (30 days) followed by vermicomposting (60 days) was conducted in a controlled greenhouse environment. Samples were collected biweekly to analyze temperature, moisture, pH, electrical conductivity, total nitrogen, total available phosphorous, and total potassium contents, vermicompost yield, and earthworm growth parameters throughout the process. Results showed that T1 and T2 significantly improved earthworm weight (8.23-16.0%), number of earthworms (65.0-69.0%), cocoon production (37.0-49.0%), and hatchling count (49.0-77.6%), compared to T3 (control). Also, T1 and T2 increased pH (4.30-5.75%), total nitrogen (53.6-62.5%), total available phosphorus (61.6-117%), and total potassium (47.5-71.3%) and reduced electrical conductivity (9.91%), total organic carbon (17.9-42.1%), carbon: nitrogen ratio (46.5-64.4%), and vermicompost mass (22.0-28.3%) at the end of the vermicomposting period, compared to T3. Moreover, T1 and T2 exhibited significantly higher lettuce seed germination (92.4-93.5%), germination index (76.2-80.4%), shoot elongation (46.0-92.5%), and root elongation (9.00-15.0%), compared to T3. However, in most of the results, there was no significant difference between T1 and T2. This finding suggests that the use of T2 (5.00%) charcoal addition enhances vermicompost quality to optimal maturity and stability.

木炭对用布袋莲和牛粪生产的蛭石堆肥质量的影响
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来源期刊
The Scientific World Journal
The Scientific World Journal 综合性期刊-综合性期刊
CiteScore
5.60
自引率
0.00%
发文量
170
审稿时长
3.7 months
期刊介绍: The Scientific World Journal is a peer-reviewed, Open Access journal that publishes original research, reviews, and clinical studies covering a wide range of subjects in science, technology, and medicine. The journal is divided into 81 subject areas.
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