Effects of two bacterial inoculants and biostimulants on the growth performance of Amaranthus cruentus at different levels of spent-engine-oil-contaminated soil
This study was conducted to assess the growth performance of Amaranthus cruentus on spent-engine-oil- (SEO) contaminated soil bioremediated with bacterial inoculants and processed biostimulants: compost, sole cocoa pod husk (CPH), and sole cow dung (CD). SEO with 5%, 10%, and 15% densities was artif...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2021-12-01
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| Series: | Acta Universitatis Sapientiae: Agriculture and Environment |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/ausae-2021-0001 |
| _version_ | 1798014064016752640 |
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| author | Adeleye Adeniyi Olarewaju Yerima Mohammed Bello Nkereuwem Michael Edet Onokebhagbe Victor Odiamehi Sadiq Ismaila Shina Amoo Florence Kemi Raji Madinat |
| author_facet | Adeleye Adeniyi Olarewaju Yerima Mohammed Bello Nkereuwem Michael Edet Onokebhagbe Victor Odiamehi Sadiq Ismaila Shina Amoo Florence Kemi Raji Madinat |
| author_sort | Adeleye Adeniyi Olarewaju |
| collection | DOAJ |
| description | This study was conducted to assess the growth performance of Amaranthus cruentus on spent-engine-oil- (SEO) contaminated soil bioremediated with bacterial inoculants and processed biostimulants: compost, sole cocoa pod husk (CPH), and sole cow dung (CD). SEO with 5%, 10%, and 15% densities was artificially contaminated with sterilized soil. Subsequently, biostimulants and bacterial inoculants, Staphylococcus aureus and Bacillus cereus, were applied. The treatments were replicated three times, adopting a completely randomized design. After the biodegradation assay that lasted for 70 days, Amaranthus cruentus seeds were sown, while its growth parameters, plant height, number of leaves, and stem girth were monitored for 6 weeks after sowing (WAS). The results generated indicate that the applied biostimulants and bacterial inoculants accomplished significant (P < 0.05) reclamation of the SEO-contaminated soil as the test plant recorded substantial growth compared with the controls that recorded no growth. At 2 WAS, compost influenced the highest plant heights (6.5, 7.4, and 7.5 cm) compared with other biostimulants at 5%, 10%, and 15% SEO contamination levels respectively. At 4 WAS, all biostimulants produced the same number of leaves (5.0) at 5% SEO contamination level, the compost recorded the highest number of leaves (6.0) at 10% SEO contamination level, while all biostimulants produced the same number of leaves (4.0) at 15% SEO contamination level. The study showed that the combination of biostimulants and bacterial inoculants significantly reclaimed SEO contaminated soil. Therefore, reclamation of petroleum-impacted environments with the combination of biostimulation and bioaugmentation is recommended. |
| first_indexed | 2024-04-11T15:12:34Z |
| format | Article |
| id | doaj.art-4eaeccc1ca7b41fd8b15be843eeef785 |
| institution | Directory Open Access Journal |
| issn | 2068-2964 |
| language | English |
| last_indexed | 2024-04-11T15:12:34Z |
| publishDate | 2021-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Acta Universitatis Sapientiae: Agriculture and Environment |
| spelling | doaj.art-4eaeccc1ca7b41fd8b15be843eeef7852022-12-22T04:16:36ZengSciendoActa Universitatis Sapientiae: Agriculture and Environment2068-29642021-12-0113111210.2478/ausae-2021-0001Effects of two bacterial inoculants and biostimulants on the growth performance of Amaranthus cruentus at different levels of spent-engine-oil-contaminated soilAdeleye Adeniyi Olarewaju0Yerima Mohammed Bello1Nkereuwem Michael Edet2Onokebhagbe Victor Odiamehi3Sadiq Ismaila Shina4Amoo Florence Kemi5Raji Madinat6Department of Environmental Sciences, Federal University Dutse, Nigeriae-mail: adeniyi.adeleye@fud.edu.ngDepartment of Microbiology and Biotechnology, Federal University Dutse, NigeriaDepartment of Soil Science, Federal University Dutse, NigeriaDepartment of Soil Science, Federal University Dutse, NigeriaDepartment of Chemistry, Federal University Dutse, NigeriaDepartment of Microbiology and Biotechnology, Federal University Dutse, NigeriaDepartment of Microbiology and Biotechnology, Federal University Dutse, NigeriaThis study was conducted to assess the growth performance of Amaranthus cruentus on spent-engine-oil- (SEO) contaminated soil bioremediated with bacterial inoculants and processed biostimulants: compost, sole cocoa pod husk (CPH), and sole cow dung (CD). SEO with 5%, 10%, and 15% densities was artificially contaminated with sterilized soil. Subsequently, biostimulants and bacterial inoculants, Staphylococcus aureus and Bacillus cereus, were applied. The treatments were replicated three times, adopting a completely randomized design. After the biodegradation assay that lasted for 70 days, Amaranthus cruentus seeds were sown, while its growth parameters, plant height, number of leaves, and stem girth were monitored for 6 weeks after sowing (WAS). The results generated indicate that the applied biostimulants and bacterial inoculants accomplished significant (P < 0.05) reclamation of the SEO-contaminated soil as the test plant recorded substantial growth compared with the controls that recorded no growth. At 2 WAS, compost influenced the highest plant heights (6.5, 7.4, and 7.5 cm) compared with other biostimulants at 5%, 10%, and 15% SEO contamination levels respectively. At 4 WAS, all biostimulants produced the same number of leaves (5.0) at 5% SEO contamination level, the compost recorded the highest number of leaves (6.0) at 10% SEO contamination level, while all biostimulants produced the same number of leaves (4.0) at 15% SEO contamination level. The study showed that the combination of biostimulants and bacterial inoculants significantly reclaimed SEO contaminated soil. Therefore, reclamation of petroleum-impacted environments with the combination of biostimulation and bioaugmentation is recommended.https://doi.org/10.2478/ausae-2021-0001amaranthus cruentusbacterial inoculantsbiostimulantsspent engine oilcontaminated soil |
| spellingShingle | Adeleye Adeniyi Olarewaju Yerima Mohammed Bello Nkereuwem Michael Edet Onokebhagbe Victor Odiamehi Sadiq Ismaila Shina Amoo Florence Kemi Raji Madinat Effects of two bacterial inoculants and biostimulants on the growth performance of Amaranthus cruentus at different levels of spent-engine-oil-contaminated soil Acta Universitatis Sapientiae: Agriculture and Environment amaranthus cruentus bacterial inoculants biostimulants spent engine oil contaminated soil |
| title | Effects of two bacterial inoculants and biostimulants on the growth performance of Amaranthus cruentus at different levels of spent-engine-oil-contaminated soil |
| title_full | Effects of two bacterial inoculants and biostimulants on the growth performance of Amaranthus cruentus at different levels of spent-engine-oil-contaminated soil |
| title_fullStr | Effects of two bacterial inoculants and biostimulants on the growth performance of Amaranthus cruentus at different levels of spent-engine-oil-contaminated soil |
| title_full_unstemmed | Effects of two bacterial inoculants and biostimulants on the growth performance of Amaranthus cruentus at different levels of spent-engine-oil-contaminated soil |
| title_short | Effects of two bacterial inoculants and biostimulants on the growth performance of Amaranthus cruentus at different levels of spent-engine-oil-contaminated soil |
| title_sort | effects of two bacterial inoculants and biostimulants on the growth performance of amaranthus cruentus at different levels of spent engine oil contaminated soil |
| topic | amaranthus cruentus bacterial inoculants biostimulants spent engine oil contaminated soil |
| url | https://doi.org/10.2478/ausae-2021-0001 |
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