Uses of agri by-product in inhibiting ammonia and methane from cattle slurry during storage

Mohd Saufi B., . and Azizi A. A., . and Mohd Ghazali R., . and Syarol Nizam A. B., . and Nur Alyani S., . and Mohd Alif Omar M., . and Syuhaidah A. B., . and Rashidah A. M., . (2023) Uses of agri by-product in inhibiting ammonia and methane from cattle slurry during storage. Malaysian Journal of Animal Science (Malaysia), 26 (1). pp. 1-10. ISSN 2550-2123

Liquid manures storages produce significant amounts of ammonia (NH₃) and methane (CH₄) gas from biological anaerobic fermentation. Small-scale observation studies using 3 kg of slurry for each treatment were carried out to investigate a simple approach to mitigate NH₃ and CH₄ emissions during slurry storage. There were five treatments using agriculture by-products. The agriculture by-products from rice husk, rice straw, cocopeat and wood chips were placed on top of cattle slurry filled inside a small container as physical cover to reduce NH₃ volatilization and CH₄ emission. During the forty-five days of the undisturbed storage period, an immediate reduction of CH₄ and NH₃ gas fluxes were observed after the application (day 1). The cumulative NH₃ releases were lowered between 28.6% and 66.7% as compared to untreated (Ctrl) after 30 days of observations, and CH₄ was inhibited by 4 to 33% after 45 days of storage. Ricestraw was found to be the best as a physical cover in inhibiting both gases (NH₃ and CH₄) with cumulative inhibition percentages of 31 and 33%, respectively. These preliminary findings provide insight into future manure management systems applicable as one of the greenhouse gas mitigation strategies.

Full text available from: Official URL: https://mjas.my/mjas-v2/rf/pages/journal/v26i1/1-2...

Abstract

Liquid manures storages produce significant amounts of ammonia (NH₃) and methane (CH₄) gas from biological anaerobic fermentation. Small-scale observation studies using 3 kg of slurry for each treatment were carried out to investigate a simple approach to mitigate NH₃ and CH₄ emissions during slurry storage. There were five treatments using agriculture by-products. The agriculture by-products from rice husk, rice straw, cocopeat and wood chips were placed on top of cattle slurry filled inside a small container as physical cover to reduce NH₃ volatilization and CH₄ emission. During the forty-five days of the undisturbed storage period, an immediate reduction of CH₄ and NH₃ gas fluxes were observed after the application (day 1). The cumulative NH₃ releases were lowered between 28.6% and 66.7% as compared to untreated (Ctrl) after 30 days of observations, and CH₄ was inhibited by 4 to 33% after 45 days of storage. Ricestraw was found to be the best as a physical cover in inhibiting both gases (NH₃ and CH₄) with cumulative inhibition percentages of 31 and 33%, respectively. These preliminary findings provide insight into future manure management systems applicable as one of the greenhouse gas mitigation strategies.

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Item Type:	Article
AGROVOC Term:	methane
AGROVOC Term:	storage
AGROVOC Term:	inhibition
AGROVOC Term:	emission reduction
AGROVOC Term:	environmental impact
Geographical Term:	Malaysia
Uncontrolled Keywords:	Agricultural byproducts, cattle slurry
Depositing User:	Ms. Azariah Hashim
Date Deposited:	10 Feb 2025 07:23
Last Modified:	10 Feb 2025 07:23
URI:	http://webagris.upm.edu.my/id/eprint/1382

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