A combination of organic fertilizers partially substitution with alternate wet and dry irrigation could further reduce greenhouse gases emission in rice field

Liao, Bin; Cai, Ti; Wu, Xian; Luo, Yuling; Liao, Ping; Zhang, Bochao; Zhang, Yuting; Wei, Guangfei; Hu, Ronggui; Luo, Yufeng; Cui, Yuanlai

doi:10.1016/j.jenvman.2023.118372

Cited by 21 publications

(17 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The cumulative emissions were obtained by integrating the gas flux over time. CH 4 and N 2 O fluxes, global warming potential (GWP), and greenhouse gas emission intensity (GHGI) were calculated according to the following formula [33,34],…”

Section: Gas Collection and Measurementmentioning

confidence: 99%

“…Additionally, organic fertilizers can promote the growth of phototrophs when exposed to light after application, and they will inhibit the production of CH 4 at the soil-water interface [43]. Chemical nitrogen fertilizers can promote rice plant growth, increase soil organic acid content in the root system, improve the environment for methanogenic bacterial activity, promote CH 4 production [44], and provide an effective channel for CH 4 emission [34]. This also explains the lower peak CH 4 fluxes in the rice fields with the bio-organic fertilizer replacement treatment compared with the full chemical fertilizer treatment after spike fertilization (Figure 1).…”

Section: Effect Of Water and Fertilizer Management On Ch 4 Emissionsmentioning

confidence: 99%

“…Similar results have been found in previous studies. For instance, Liao et al [34] discovered that substituting partial chemical nitrogen fertilizer with organic fertilizer could decrease CH 4 emissions from rice fields. And, CH 4 emissions from rice fields with 50% organic fertilizer replacement were higher than those with 25% organic fertilizer replacement [34].…”

Section: Effect Of Water and Fertilizer Management On Ch 4 Emissionsmentioning

confidence: 99%

“…For instance, Liao et al [34] discovered that substituting partial chemical nitrogen fertilizer with organic fertilizer could decrease CH 4 emissions from rice fields. And, CH 4 emissions from rice fields with 50% organic fertilizer replacement were higher than those with 25% organic fertilizer replacement [34]. Furthermore, moisture management affects gas permeability and the redox status of soil, which in turn influences soil CH 4 production, oxidation, and emissions [28].…”

Section: Effect Of Water and Fertilizer Management On Ch 4 Emissionsmentioning

confidence: 99%

See 3 more Smart Citations

Substituting Partial Chemical Fertilizers with Bio-Organic Fertilizers to Reduce Greenhouse Gas Emissions in Water-Saving Irrigated Rice Fields

Han,

Hou,

Yao

et al. 2024

Agronomy

View full text Add to dashboard Cite

Conventional water and fertilizer management practices have led to elevated greenhouse gas emissions from rice fields and decreased the efficiency of water and fertilizer utilization in agricultural land. The implementation of water-saving irrigation and the substitution of chemical fertilizers with organic alternatives can influence CH4 and N2O emissions in rice fields. However, it remains unclear how the simultaneous application of both methods will affect the CH4 and N2O emissions in rice fields. Therefore, two irrigation methods (F: flooded irrigation; C: controlled irrigation) and three fertilization modes (A: full chemical fertilizer; B: bio-organic fertilizer replacing 15% chemical nitrogen fertilizer; C: bio-organic fertilizer replacing 30% chemical nitrogen fertilizer) were set up through field experiments to explore the effect of greenhouse gas emission reduction in rice fields by combining controlled irrigation and bio-organic fertilizers. Substituting some chemical fertilizers with bio-organic fertilizers can lower the peak CH4 and N2O fluxes in rice fields, leading to a decrease in the cumulative CH4 and N2O emissions by 11.9~29.7% and 10.8~57.3%, respectively. The reductions led to a considerable decrease in the global warming potential (GWP) and the greenhouse gas emission intensity (GHGI) by 16.1~48.1% and 16.3~48.1%, respectively. Controlled irrigation significantly reduced CH4 emissions by 55.2~69.4% compared with flooded irrigation in rice fields. However, it also increased N2O emissions by 47.5~207.9%, considerably reducing their GWPs by 11.8~45.5%. Neither bio-organic fertilizer substitution nor controlled irrigation significantly affected rice yield. Replacing 15% of chemical nitrogen fertilizers with bio-organic fertilizers in controlled irrigation rice fields can minimize rice GWP and GHGI. The study’s results are of significant importance for enhancing the regulation of greenhouse gases in farmland and achieving sustainable agriculture through cleaner production.

show abstract

Section: Gas Collection and Measurementmentioning

confidence: 99%

Section: Effect Of Water and Fertilizer Management On Ch 4 Emissionsmentioning

confidence: 99%

Section: Effect Of Water and Fertilizer Management On Ch 4 Emissionsmentioning

confidence: 99%

Section: Effect Of Water and Fertilizer Management On Ch 4 Emissionsmentioning

confidence: 99%

See 2 more Smart Citations

Substituting Partial Chemical Fertilizers with Bio-Organic Fertilizers to Reduce Greenhouse Gas Emissions in Water-Saving Irrigated Rice Fields

Han,

Hou,

Yao

et al. 2024

Agronomy

View full text Add to dashboard Cite

show abstract

“…Currently, 90% of rice production is obtained through flood irrigation [ 7 ], making it a significant source of methane (CH 4 ). Furthermore, nitrous oxide (N 2 O) is mainly generated by nitrification and denitrification processes, which are closely related to soil moisture [ 8 ]. Both gases represent approximately 30% and 11%, respectively, of global agricultural emissions [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Design of a Portable Analyzer to Determine the Net Exchange of CO2 in Rice Field Ecosystems

Bonilla-Cordova,

Cruz-Villacorta,

Echegaray-Cabrera

et al. 2024

Sensors

View full text Add to dashboard Cite

Global warming is influenced by an increase in greenhouse gas (GHG) concentration in the atmosphere. Consequently, Net Ecosystem Exchange (NEE) is the main factor that influences the exchange of carbon (C) between the atmosphere and the soil. As a result, agricultural ecosystems are a potential carbon dioxide (CO2) sink, particularly rice paddies (Oryza sativa). Therefore, a static chamber with a portable CO2 analyzer was designed and implemented for three rice plots to monitor CO2 emissions. Furthermore, a weather station was installed to record meteorological variables. The vegetative, reproductive, and maturation phases of the crop lasted 95, 35, and 42 days post-sowing (DPS), respectively. In total, the crop lasted 172 DPS. Diurnal NEE had the highest CO2 absorption capacity at 10:00 a.m. for the tillering stage (82 and 89 DPS), floral primordium (102 DPS), panicle initiation (111 DPS), and flowering (126 DPS). On the other hand, the maximum CO2 emission at 82, 111, and 126 DPS occurred at 6:00 p.m. At 89 and 102 DPS, it occurred at 4:00 and 6:00 a.m., respectively. NEE in the vegetative stage was −25 μmolCO2 m2 s−1, and in the reproductive stage, it was −35 μmolCO2 m2 s−1, indicating the highest absorption capacity of the plots. The seasonal dynamics of NEE were mainly controlled by the air temperature inside the chamber (Tc) (R = −0.69), the relative humidity inside the chamber (RHc) (R = −0.66), and net radiation (Rn) (R = −0.75). These results are similar to previous studies obtained via chromatographic analysis and eddy covariance (EC), which suggests that the portable analyzer could be an alternative for CO2 monitoring.

show abstract

Enhanced strategies for water and fertilizer management to optimize yields and promote environmental sustainability in the mechanized harvesting of ratoon rice in Southeast China

Lan,

Zou,

et al. 2024

Agricultural Water Management

View full text Add to dashboard Cite

A combination of organic fertilizers partially substitution with alternate wet and dry irrigation could further reduce greenhouse gases emission in rice field

Cited by 21 publications

References 45 publications

Substituting Partial Chemical Fertilizers with Bio-Organic Fertilizers to Reduce Greenhouse Gas Emissions in Water-Saving Irrigated Rice Fields

Substituting Partial Chemical Fertilizers with Bio-Organic Fertilizers to Reduce Greenhouse Gas Emissions in Water-Saving Irrigated Rice Fields

Design of a Portable Analyzer to Determine the Net Exchange of CO2 in Rice Field Ecosystems

Enhanced strategies for water and fertilizer management to optimize yields and promote environmental sustainability in the mechanized harvesting of ratoon rice in Southeast China

Contact Info

Product

Resources

About