1
|
Padhan K, Patra RK, Sethi D, Mohanty S, Sahoo SK, Panda N, Pattanayak SK, Patra AK. Exploitation of cellulose degrading bacteria in bioconversion of agro-wastes. CHEMOSPHERE 2024; 347:140654. [PMID: 37952818 DOI: 10.1016/j.chemosphere.2023.140654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 10/27/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
The issue of solid waste management has become worse as a result of rapid demographic growth and rising urbanisation. Therefore economical, efficient and quick yielding techniques are essential. In this study, composting of agro-wastes i.e., paddy straw, maize stover and vegetable waste with three strains of cellulolytic bacteria (CBC9, CBD4 and CBG2) was performed. The results showed that the C:N ratio of matured compost produced from bacterial inoculation ranged from 14-17:1, nitrification index (NI) ranged from 0.35 to 0.45, Cation exchange capacity (CEC) ranged from 76 to 88 cmol (P+) kg-1, whereas, total N, P and K content of composts increased by 75-127 %, 20-175% and 42-94%, respectively. The recovery of compost was highest in case of paddy straw compost (39%) produced from CBG2 inoculation which was followed by vegetable waste (38%) and maize stover compost (36%) produced from same bacterial inoculation. FT-IR, SEM and EDS studies suggested that final compost produced from inoculation of bacterial strain was more stabilized as compared to un-inoculated control, characterized by a decrease in aliphatic materials and an increase in aromatic groups, presumably related to bio-synthesis of humic substance.
Collapse
Affiliation(s)
- Kshitipati Padhan
- Department of Soil Science, College of Agriculture, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, 751003, India
| | - Ranjan Kumar Patra
- Department of Soil Science, College of Agriculture, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, 751003, India
| | - Debadatta Sethi
- Department of Soil Science, College of Agriculture, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, 751003, India; Sugarcane Research Station, Odisha University of Agriculture and Technology, Nayagarh, Odisha, 752070, India.
| | - Shraddha Mohanty
- Department of Soil Science, College of Agriculture, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, 751003, India
| | - Sanjib Kumar Sahoo
- Department of Soil Science, College of Agriculture, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, 751003, India; College of Agriculture, Odisha University of Agriculture and Technology, Bhawanipatna, Odisha, 766001, India
| | - Narayan Panda
- Department of Soil Science, College of Agriculture, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, 751003, India
| | - Sushanta Kumar Pattanayak
- Department of Soil Science, College of Agriculture, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, 751003, India
| | - Alok Kumar Patra
- All India Coordinated Research Project on Integrated Farming Systems, Directorate of Research, Odisha University of Agriculture and Technology, Bhubaneswar, Odisha, 751003, India
| |
Collapse
|
2
|
Hemati A, Alikhani HA, Babaei M, Ajdanian L, Asgari Lajayer B, van Hullebusch ED. Effects of foliar application of humic acid extracts and indole acetic acid on important growth indices of canola (Brassica napus L.). Sci Rep 2022; 12:20033. [PMID: 36414656 PMCID: PMC9681778 DOI: 10.1038/s41598-022-21997-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 10/07/2022] [Indexed: 11/23/2022] Open
Abstract
Vermicompost (VC) is a rich source of HA that improves plant growth and yield indices such as fresh and dry weights, plant height, stem diameter, leaf area, and chlorophyll index value. In this study, the effect of foliar application of HA extracted from different types of VC enriched with bacteria and/or fertilizers, commercial HA (CHA) and indole acetic acid (IAA) on the growth characteristics of canola (Brassica napus) in greenhouse conditions were compared. According to the results, the foliar application of HA extracted from VC had complete superiority over CHA and IAA in most traits except for the leaf number. Furthermore, the highest level of foliar application of HA (600 mg L-1) enriched with Azotobacter chroococcum (21Az) + Pseudomonas fluorescens (Ps 59) (HA-AS) generated the highest height, diameter, leaf area, and chlorophyll index value. Also, the highest stomatal conductance and photosynthesis rate were observed with the application of 600 mg L-1 HA extracted from VC enriched with nitrogen, sulfur, and phosphorus (HA-NSP) compared to the other treatments. Besides, dry and fresh weights and seed yield under HA-NSP and HA-AS treatments were at their highest rate. Among the extracted HAs, the one extracted from the nitrogen enriched VC had the lowest efficiency. Based on the present study, the HA extracted from VC enriched with Azotobacter, Pseudomonas and NSP is recommended to increase canola growth and production.
Collapse
Affiliation(s)
- Arash Hemati
- grid.412831.d0000 0001 1172 3536Department of Soil Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran ,CEO of Qizil Topraq Sahand Company, Maragheh, Iran
| | - Hossein Ali Alikhani
- grid.46072.370000 0004 0612 7950Department of Soil Science, University College of Agriculture and Natural Resources, University of Tehran, Tehran, Iran
| | - Mehdi Babaei
- grid.411301.60000 0001 0666 1211Department of Horticultural Sciences, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ladan Ajdanian
- grid.411301.60000 0001 0666 1211Department of Horticultural Sciences, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Behnam Asgari Lajayer
- grid.412831.d0000 0001 1172 3536Department of Soil Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Eric D. van Hullebusch
- grid.9489.c0000 0001 0675 8101Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, 75005 Paris, France
| |
Collapse
|