Post-harvest straw management and greenhouse gas emissions estimation in rice cultivation in Phu Vang commune, Hue City

Nguyen Trung Hai; Nguyen Thi Hoai; Trịnh Thi Sen; Tran Thanh Duc; Nguyen Thi Thanh; Nguyen Tran Sa Giang

doi:10.46826/huaf-jasat.v10n1y2026.1307

Published Feb 24, 2026

DOI https://doi.org/10.46826/huaf-jasat.v10n1y2026.1307

Abstract

This study was investigated the current status of rice straw management and estimated greenhouse gas (GHG) emissions from post-harvest practices in Phu Vang commune, Hue City, Vietnam– during the 2024–2025 winter–spring season. Field surveys were conducted across multiple communes with 30 rice-farming households using randomised sampling to assess typical straw management practices such as open-field burning, incorporating into soil, composting, and reusing for mushroom cultivation or livestock feeding. Data were analysed to estimate straw production, burning rates, and corresponding GHG emissions using established emission factors. Survey data from local households indicated that livestock feed was the most common straw management method (83.33%), while open-field burning remained a significant concern, with 40% of households still engaging in this practice. The study found a strong correlation between straw biomass and greenhouse gas (GHG) emissions. The amount of straw generated varied from 7.8 to 12.2 t/ha/season across different study sites. Consequently, GHG emissions from straw burning also showed significant variation, with estimated emissions of CO₂ ranging from 4.1 to 6.7 t/ha/season. A positive correlation was observed between the quantity of straw burned and the level of emissions, confirming the environmental impact of current practices. This research contributed empirical data to the assessment of GHG emissions from rice cultivation in research sites and reinforced the need for sustainable straw management policies.

How to Cite

Nguyen Trung Hai, Nguyen Thi Hoai, Trịnh Thi Sen, Tran Thanh Duc, Nguyen Thi Thanh, & Nguyen Tran Sa Giang. (2026). Post-harvest straw management and greenhouse gas emissions estimation in rice cultivation in Phu Vang commune, Hue City. E-Journal of Agricultural Science and Technology, 10(1), 5322–5331. https://doi.org/10.46826/huaf-jasat.v10n1y2026.1307

Issue

Vol. 10 No. 1 (2026): Journal of Agricultural Science and Technology

Section

PLANTS - CROP SCIENCES

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References