Methane (CHâ‚„) emissions exceeding the threshold from chilli cultivation mulching practices in Sleman Regency, Indonesia

Soil conditions CHâ‚„ flux Organic Mulch Plastic film mulching Emissions regulation

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January 27, 2025
June 11, 2025
June 24, 2025

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Methane (CHâ‚„) is a potent greenhouse gas contributing to global warming, although there is limited information on its emissions dynamics in dryland horticulture. Chilli cultivation practices comprising fertilization and mulching may influence CHâ‚„ emissions through alterations in soil temperature and moisture. Therefore, this study aimed to evaluate the effect of different mulching practices on CHâ‚„ emissions and determine the threshold for sustainable chilli cultivation in tropical dryland conditions. A field experiment was conducted in Sleman, Indonesia, using a randomized block design with three mulch treatments. These included unmulched treatment (M0), organic mulch (M1), and plastic mulch (M2), each replicated three times. Gas sampling was performed biweekly for 112 days using the closed chamber method. Soil temperature and Volumetric Water Content (VWC) were recorded using in situ sensors. The results showed that mulch treatments significantly influenced CHâ‚„ emissions (p < 0.001). M1 produced the highest average CHâ‚„ flux (0.114 mg mâ»Â² hâ»Â¹), followed by M2 (0.043 mg mâ»Â² hâ»Â¹) and M0 (0.016 mg mâ»Â² hâ»Â¹). All treatments exceeded the calculated CHâ‚„ threshold of 0.145 mg mâ»Â² hâ»Â¹ under certain conditions. These results showed the need for careful mulching selection to reduce environmental impact and support the development of CHâ‚„ emissions threshold for sustainable dryland horticulture.

How to Cite

Ardhitama, A., Nugroho, B. D. A., Sartohadi, J., Supari, S., Kraningtyas, R., Listanti, R., & Taulani, K. H. (2025). Methane (CHâ‚„) emissions exceeding the threshold from chilli cultivation mulching practices in Sleman Regency, Indonesia. SAINS TANAH - Journal of Soil Science and Agroclimatology, 22(1), 146-156. https://doi.org/10.20961/stjssa.v22i1.98896