Alternate wetting and drying (AWD) is a water-saving irrigation technique in paddy field that can reduce the emission of methane, potent greenhouse gas (GHG). It being adopted to Asian countries, but different results are reported literatures on nitrous oxide emission, rice productivity under AWD. Therefore, local feasibility needs be investigated before its adoption by farmers. The current study carried out 3-year experiment an acid sulfate Prachin Buri, Thailand. During five crops (3 dry 2...

Biochar application and alternate wetting drying (AWD) are emerging as promising technologies recommended for reducing CH4 emissions water consumption in rice cultivation. In this study, we hypothesized that both could be practiced combination further reduce when compared to practicing alone. The effects of biochar its co-application with chemical fertilizer or compost under conventional AWD management on emissions, productivity rice, use, SOC stock, well cost income were investigated....

Paddy fields are considered as one of the most important sources anthropogenic methane (CH4) and nitrous oxide (N2O) emissions. While several technical options have been proposed to reduce these emissions, gaps in data information based on application field a key barrier scaling-up. To address gaps, we conducted review literature analyze potential Southeast Asia (SEA). Using screening criteria reliability experimental data, 31 region-specific cases were selected for analysis. A meta-analysis...

Biochar has been recommended as a soil amendment to improve fertility and mitigate methane (CH4) emissions from rice cultivation. Its effects, however, vary depending on type, biochar characteristics, application rate. This study was aimed evaluate the potential of mangrove CH4 mitigation, properties, productivity cultivated in clay loam Thailand. used at rate equivalent 10 t ha−1 season−1, both with (biochar + fertilizer: BF) without alone: BI) fertilizer, for two cultivation seasons. BI...

The mitigation of greenhouse gas (GHG) emissions and water usage optimization in rice cultivation is challenging for many agricultural countries, including Thailand, who have set goals reaching net zero coping with droughts caused by climate change. Alternate wetting drying (AWD) biochar application are possible practices achieving cleaner production through reduction GHG consumption. However, these methods' potential varies site, especially areas limited control levels. This study assessed...

Pork is a staple food in many cultures worldwide and plays significant role global systems. However, the production of pork associated with various environmental issues throughout its life cycle. This study employed cycle assessment (LCA) to evaluate impact slaughtered Thailand. The system boundaries encompassed pig breeding, farming, slaughtering. primary focus was on identifying contributors burdens chain. Three scenarios for feed compositions were assessed. results indicated that...

Biochar amendment is generally recognized as an effective mitigation option of methane (CH4) emissions from rice cultivation. Although its mechanisms are not well understood, the potential relevance surface area and porosity biochar has been discussed. This study aimed to evaluate application different particle sizes on CH4 production, oxidation, cultivation in a clay loam soil, based assumption that directly related effects. Rice was grown under greenhouse conditions for two growing...

Alternate wet and dry (AWD) system is an interesting water management that has been widely promoted to replace continuous flooding (CF) as effective saving technique for rice cultivation. This study was conducted in season of 2015 2016 Ratchaburi Province, Thailand, with a randomised block design estimate compare the used cultivation grain yield between AWD CF systems. Water level controlling field incomplete experiment due rainfall interference, but it complete experiment. It found...

Abstract Alternate wetting and drying (AWD) water management is being promoted to replace continuous flooding (CF) regime in rice cultivation for agricultural countries, including Thailand, achieve the net zero greenhouse gas (GHG) emissions cope with drought. However, its adoption different areas yielding variable results that requires careful approaches prevent negative impacts on yield, particularly aroma of fragrant rice, along mitigating GHG emissions, mainly methane (CH 4 ) nitrous...

This study aimed to investigate the effects of cultivation practices on soil organic carbon sequestration associated with distribution and stability aggregates in tropical crop fields. The analyzed soils collected from two long-term experimental sites different fertilizer applications during past 46 years. For cassava cultivation, six treatments were included: Control, N (N), NPK (NPK), incorporated compost (NPK+CP), residue (NPK+CR), (CR). maize rotated mung bean chemical Cow dung (CD), cow...

Abstract Application of biochar to the soil has been reported as one mitigation technologies CH 4 emission from rice cultivation due its unique characteristics high porosity and surface area. The application small particle size is rich in area that may enhance potential. Rice incubation experiments were conducted evaluate effect two groups on production order show This experiment consists three treatments including no (CT), (0.5-2 mm) (SB), large (2-4 (LB). Both sizes amended at 10 t ha −1...

Biochar and alternate wetting drying (AWD) are acceptable technologies for methane (CH4) emission mitigation yield increase of rice growing.However, both should be used together with fertilizers to enhance more in order promote farmer application.This study was conducted evaluate the effects organic (compost) inorganic fertilizer when combined biochar as co-application AWD on CH4 emission, water use cultivation.Rice transplanted experimental field under CF managements wet dry...

Biochar application to agricultural crop fields could mitigates the emission of greenhouse gases, especially methane (CH 4 ). However, mitigation mechanisms are not well understood. This study aimed investigate mechanistic effects biochar on CH production and oxidation in incubated rice paddy soils collected from multiple sites Thailand (Ratcha Buri at Chom Bueng [RBCB] Damnoen Saduak [RBDS] Prachin Ban Sang [PBBS]). Prior incubation, RBCB PBBS were mixed with without 2% (w/w) biochar, while...

The 1.00% default emission factor (EF) of direct nitrous oxide (N2O) emissions recommended by the Intergovernmental Panel on Climate Change (IPCC) was used to calculate N2O from managed soils in countries lacking a country-specific EF, such as Thailand. However, this approach is highly uncertain because spatial variation and complexity emissions, which results inaccurate estimations. This study examined EFs resulting use chemical fertilizer at different rates (0, 100, 150, 200, 250 kg N...

Biochar is recommended as soil amendment to CH4 emissions from rice growing. However, mitigation mechanisms are not well known. This study aimed evaluate the changes of production, oxidation and emission cultivation that was amended by mangrove biochar explain way.