Citation
Carlina F. Simol, . and John Keen Chubo, . and Patricia King, J. H. and Ong, K.H. and Cindy Chew, . and Lirong Y. Abit, . and Khalid Nawi, . (2022) Enhancing plant nutrient availability in composted paddy husk using Bacillus spp. isolated from termite (Coptotermes curvignathus) gut. pp. 23-31.
Abstract
Paddy husk (PH) is a waste item generated from rice production that can be used as an organic fertilizer through composting. High lignin content is an issue with PH composting as it impedes the production of high-quality organic fertilizer. Improvements to the composting process can enhance the agronomic properties of compost produced from PH. The objectives of this study were to: (i) determine the ability of Bacillus spp. in enhancing the decomposition of PH and (ii) determine the ability of Bacillus spp. in increasing the macronutrient content of composted PH. Different ligninolytic active Bacillus spp. from termite gut (either singly or a cocktail) were added to 7 of 9 compost boxes containing PH compost mixtures and were allowed to decompose for a period of 60 days. Each treatment was represented by 3 samples, and the compost boxes were arranged in a completely randomized design (CRD) with 3 replications. Results showed that the addition of Bacillus spp. promoted the production of matured compost within 60 days with significantly higher amounts of phosphorus, potassium, calcium, and magnesium. Germination index (GI) of all composted PH added with Bacillus spp. ranged from 82.51 to 95.83%, suggesting that composted PH has lower phytotoxicity than compost without Bacillus spp. isolate. In general, addition of Bacillus spp. to PH waste promoted the production of PH composts with improved macronutrient availability and lower phytotoxicity levels.
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Official URL: https://www.scienceasia.org/2022.48.n1/scias48_23....
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Abstract
Paddy husk (PH) is a waste item generated from rice production that can be used as an organic fertilizer through composting. High lignin content is an issue with PH composting as it impedes the production of high-quality organic fertilizer. Improvements to the composting process can enhance the agronomic properties of compost produced from PH. The objectives of this study were to: (i) determine the ability of Bacillus spp. in enhancing the decomposition of PH and (ii) determine the ability of Bacillus spp. in increasing the macronutrient content of composted PH. Different ligninolytic active Bacillus spp. from termite gut (either singly or a cocktail) were added to 7 of 9 compost boxes containing PH compost mixtures and were allowed to decompose for a period of 60 days. Each treatment was represented by 3 samples, and the compost boxes were arranged in a completely randomized design (CRD) with 3 replications. Results showed that the addition of Bacillus spp. promoted the production of matured compost within 60 days with significantly higher amounts of phosphorus, potassium, calcium, and magnesium. Germination index (GI) of all composted PH added with Bacillus spp. ranged from 82.51 to 95.83%, suggesting that composted PH has lower phytotoxicity than compost without Bacillus spp. isolate. In general, addition of Bacillus spp. to PH waste promoted the production of PH composts with improved macronutrient availability and lower phytotoxicity levels.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | paddy > paddy Prefer using rice |
| AGROVOC Term: | rice |
| AGROVOC Term: | Oryza |
| AGROVOC Term: | termites > termites Prefer using IsopteraIsoptera |
| AGROVOC Term: | IsopteraIsoptera |
| AGROVOC Term: | food and agricultural sector > food and agricultural sector Prefer using agro-industrial sectoragro-industrial sector |
| AGROVOC Term: | traditional farming |
| AGROVOC Term: | suburban agriculture > suburban agriculture Prefer using peri-urban agricultureperi-urban agriculture |
| AGROVOC Term: | food security |
| AGROVOC Term: | economic growth |
| Geographical Term: | Malaysia |
| Depositing User: | Ms. Siti Sunarti Waini Osman |
| Date Deposited: | 04 Dec 2024 02:17 |
| Last Modified: | 04 Dec 2024 02:17 |
| URI: | http://webagris.upm.edu.my/id/eprint/3001 |
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