Comparison of methane emission from conventional and agroecological rice approach in Kelantan Malaysia

Mohd Fairuz Md Suptian, . and Che Radziah Che Mohd Zain, . and Mohd Shahrul Mohd Nadzir, . (2023) Comparison of methane emission from conventional and agroecological rice approach in Kelantan Malaysia. International Journal of Agriculture, Forestry and Plantation (Malaysia), 13. pp. 80-85. ISSN 2462-1757

Methane (CH4) is a potent greenhouse gas that contributes to climate change, and its emission from agricultural activities is a significant source of concern, particularly in rice cultivation in Malaysia, where rice is a staple crop. Numerous studies have shown that conventional rice cultivation methods produce higher methane emissions than agroecological approaches. Thus, a study was conducted with the objective estimating methane emissions from two different locations at Bachok and Kadok, Kelantan during the main and off-season from July 2018 until Jun 2019. Treatments comprising two methods of crop establishment viz., conventional (CM) and system of rice intensification (SRI) as the agroecological approach (AE) was laid out in randomized complete block design with four replications and plot size of 5 x 5 m. MARDI fragrant rice (Oryza sativa L) variety ‘MRQ 76’ seeds were directly seeded in the conventional treatment plots with flooded conditions while in SRI, 12-day-old seedlings were transplanted in the SRI treatment plots with saturated conditions were maintained. Methane gasses were sampled during 40, 70, and 100 days after sowing. Results of the study indicated that among the methods of crop establishment, the C method had the maximum cumulative CH4 emission followed by SRI. Methane emission using the SRI method in Bachok was 64% lower with an average value of 3.06 mg/m2/hr compared to the conventional technique with 8.47 mg/m2/hr. The SRI method also showed a 63% lower value in Kadok with 2.90 mg/m2/hr compared to the conventional with 7.90 mg /m2/hr. Emission of CH4 was higher in the early stage of the crop at 40 days after sowing and declined at 100 days after sowing in all two methods.

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Abstract

Methane (CH4) is a potent greenhouse gas that contributes to climate change, and its emission from agricultural activities is a significant source of concern, particularly in rice cultivation in Malaysia, where rice is a staple crop. Numerous studies have shown that conventional rice cultivation methods produce higher methane emissions than agroecological approaches. Thus, a study was conducted with the objective estimating methane emissions from two different locations at Bachok and Kadok, Kelantan during the main and off-season from July 2018 until Jun 2019. Treatments comprising two methods of crop establishment viz., conventional (CM) and system of rice intensification (SRI) as the agroecological approach (AE) was laid out in randomized complete block design with four replications and plot size of 5 x 5 m. MARDI fragrant rice (Oryza sativa L) variety ‘MRQ 76’ seeds were directly seeded in the conventional treatment plots with flooded conditions while in SRI, 12-day-old seedlings were transplanted in the SRI treatment plots with saturated conditions were maintained. Methane gasses were sampled during 40, 70, and 100 days after sowing. Results of the study indicated that among the methods of crop establishment, the C method had the maximum cumulative CH4 emission followed by SRI. Methane emission using the SRI method in Bachok was 64% lower with an average value of 3.06 mg/m2/hr compared to the conventional technique with 8.47 mg/m2/hr. The SRI method also showed a 63% lower value in Kadok with 2.90 mg/m2/hr compared to the conventional with 7.90 mg /m2/hr. Emission of CH4 was higher in the early stage of the crop at 40 days after sowing and declined at 100 days after sowing in all two methods.

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Item Type:	Article
AGROVOC Term:	rice
AGROVOC Term:	methane
AGROVOC Term:	Oryza sativa
AGROVOC Term:	methane emission
AGROVOC Term:	conventional farming
AGROVOC Term:	System of Rice Intensification
AGROVOC Term:	greenhouse gases
AGROVOC Term:	emission reduction
AGROVOC Term:	climate change
Geographical Term:	Malaysia
Depositing User:	Mr. Khoirul Asrimi Md Nor
Date Deposited:	04 Jun 2026 06:53
Last Modified:	04 Jun 2026 06:53
URI:	http://webagris.upm.edu.my/id/eprint/3977

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