Reduction in Greenhouse Gas Emission from Seedless Lime Cultivation Using Organic Fertilizer in a Province in Vietnam Mekong Delta Region

Le Tran Thanh Liem, Yukihiro Tashiro, Pham Van Trong Tinh and Kenji Sakai
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Le Tran Thanh Liem: Laboratory of Soil and Environmental Microbiology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
Yukihiro Tashiro: Laboratory of Soil and Environmental Microbiology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan
Pham Van Trong Tinh: Department of Agricultural Techniques, College of Rural Development, Can Tho University, Ninh Kieu District, Can Tho City 900000, Vietnam
Kenji Sakai: Laboratory of Soil and Environmental Microbiology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan

Sustainability, 2022, vol. 14, issue 10, 1-14

Abstract: This study aimed to evaluate greenhouse gas (GHG) emissions from conventional cultivation (S1) of seedless lime (SL) fruit in Hau Giang province, in the Mekong Delta region of Vietnam. We adjusted the scenarios by replacing 25% and 50% of nitrogen chemical fertilizer with respective amounts of N-based organic fertilizer (S2 and S3). Face-to-face interviews were conducted to collect primary data. Life cycle assessment (LCA) methodology with the “cradle to gate” approach was used to estimate GHG emission based on the functional unit of one hectare of growing area and one tonnage of fresh fruit weight. The emission factors of agrochemicals, fertilizers, electricity, fuel production, and internal combustion were collected from the MiLCA software, IPCC reports, and previous studies. The S1, S2, and S3 emissions were 7590, 6703, and 5884 kg-CO 2 equivalent (CO 2 e) per hectare of the growing area and 273.6, 240.3, and 209.7 kg-CO 2 e for each tonnage of commercial fruit, respectively. Changing fertilizer-based practice from S1 to S2 and S3 mitigated 887.0–1706 kg-CO 2 e ha –1 (11.7–22.5%) and 33.3–63.9 kg-CO 2 e t –1 (12.2–25.6%), respectively. These results support a solution to reduce emissions by replacing chemical fertilizers with organic fertilizers.

Keywords: greenhouse gases emission; organic fertilizer; chemical fertilizers; seedless lime fruit; Vietnam Mekong delta (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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