Impact of rice-crab and rice-fish co-cultures on the methane emission and its transport in aquaculture ponds

Yang, Tong; Wang, Xiaodan; Wang, Mengjie; Li, Fengbo; Barthel, Matti; Six, Johan; Feng, Jinfei; Fang, Fuping

doi:10.1016/j.agee.2024.109281

Agriculture, Ecosystems & Environment

2025

DOI: 10.1016/j.agee.2024.109281

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Impact of rice-crab and rice-fish co-cultures on the methane emission and its transport in aquaculture ponds

Tong Yang,

Xiaodan Wang,

Mengjie Wang

et al.

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Effect of Seedling Rates on Crop Yield and Methane Emissions from Rice Paddies

Chen,

Li,

Huang

et al. 2024

Atmosphere

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Agricultural strategies are urgently needed to mitigate greenhouse gas emissions without reducing crop yield. Seedling rate per hill will affect the quantity and quality of tillers, which may affect rice yield and CH4 emissions. Therefore, it is hypothesized that high yields with low yield-scaled CH4 emissions could be achieved with optimal seedling rate per hill. A field experiment was conducted with three densities (low seedling rate, LSR; moderate seedling rate, MSR; and high seedling rate, HSR) for two consecutive rice seasons. The CH4 fluxes were determined by the static chamber–GC method. The results showed no significant differences in rice yields, seasonal CH4 emissions, or yield-scaled CH4 emissions between the three treatments. For early rice, the HSR tended to achieve high yield without increasing yield-scaled CH4 emissions. As for late rice, the MSR showed similar rice yield, and tended to have lower yield-scaled CH4 emissions in comparison with the HSR. The results suggest that choosing an appropriate seedling rate per hill to increase grain yield while maintaining lower or comparable yield-scaled CH4 emissions can be a promising option to reduce CH4 emissions from rice paddies.

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Effect of Seedling Rates on Crop Yield and Methane Emissions from Rice Paddies

Chen,

Li,

Huang

et al. 2024

Atmosphere

View full text Add to dashboard Cite

show abstract

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Impact of rice-crab and rice-fish co-cultures on the methane emission and its transport in aquaculture ponds

Cited by 1 publication

References 70 publications

Effect of Seedling Rates on Crop Yield and Methane Emissions from Rice Paddies

Effect of Seedling Rates on Crop Yield and Methane Emissions from Rice Paddies

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