Organic matter and water management strategies to reduce methane and nitrous oxide emissions from rice paddies in Vietnam

Pandey, Arjun; Trinh, Van Anh; Vu, Duong Quynh; Bui, Thi Phuong Loan; Anh, Thi Lan; Jensen, Lars Stoumann

doi:10.1016/j.agee.2014.06.010

Cited by 174 publications

(89 citation statements)

References 43 publications

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“…The magnitude N 2 O emission in this site was comparable to those observed in the fields with water management in Asia (e.g., northern Vietnam, Pandey et al 2014;Japan, Itoh et al 2011;Philippines, Sander et al 2014). The N 2 O emission played a negligible role in terms of the GWP of CH 4 and N 2 O because of the relatively large CH 4 emission in this site.…”

Section: The Magnitude Of Ghg Emission In This Sitesupporting

confidence: 49%

“…, Table 3) as compared to the previous studies in Vietnam (Pandey et al 2014;Vu et al 2015). The application of organic fertilizer may have enhanced the CH 4 emission irrespective of treatment.…”

Section: The Magnitude Of Ghg Emission In This Sitementioning

confidence: 71%

“…Previous studies found that AWD reduced water input and kept rice grain yield at normal level (or even increased) because of the enhancement in root growth, grain-filling rate, and remobilization of carbon reserves from vegetative tissues to grains (Yang et al 2007;Zhang et al 2008). Furthermore, while CH 4 emission was reduced by 40-70%, AWD could increase N0 2 emissions from paddy fields in the world (e.g., Wassmann et al 2000;Farooq et al 2009;Pandey et al 2014;Tarlera et al 2016).…”

Section: Introductionmentioning

confidence: 99%

“…The alluvial soils of the MRD also have similar fertility characteristics of alluvial soil in the RRD; however, the texture is heavier (Le and Pham 2015). Although several field experiments for paddy CH 4 emission have been conducted in the RRD, Northern Vietnam (Vu et al 2015;Pandey et al 2014) and the MRD, Southern Vietnam (Arai et al 2015), the existing dataset is still scarce for Central Vietnam (e.g., Tirol-Padre et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Impacts of alternate wetting and drying on greenhouse gas emission from paddy field in Central Vietnam

Tran

Hoang

Tokida

et al. 2017

Soil Science and Plant Nutrition

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Vietnam is the world's fifth largest rice producing country. Since methane (CH 4 ), a potent greenhouse gas (GHG), emission from the rice cultivation accounts for 14.6% of the national anthropogenic GHG emission, developing and disseminating mitigation options are the urgent need. Alternate wetting and drying (AWD) is the irrigation technique, in which a paddy field encompasses several soil-drying phases during the growth period, thereby reducing the CH 4 emission. However, field trials of the AWD's feasibility in Central Vietnam are limited so far. We therefore carried out a 3-year experiment in a farmer's field both in winter-spring season and summer-autumn season. CH 4 and nitrous oxide (N 2 O) emissions were compared among the three treatments of water management: continuous flooding (CF), AWD, and site-specific AWD (AWDS) that changed the degree of soil drying depending on the growth stage. The total water use including irrigation and rainfall was significantly (p < 0.05) reduced by AWD (by 15%) and AWDS (by 14%) compared to CF, but rice grain yield did not differ among the three treatments. The seasonal cumulative CH 4 emission was significantly reduced by AWD (26%) and AWDS (26%) compared to CF, whereas the seasonal cumulative N 2 O emission did not differ among treatments. The resultant global warming potentials (GWPs) of CH 4 and N 2 O under AWD and AWDS were 26% and 29% smaller than that under CF, respectively. The GWP of N 2 O was only 0.8% of the total GWP of CH 4 + N 2 O. The yield-scaled GWP and water productivity (i.e., the ratio of grain yield to water use) were also improved by AWD and AWDS. No significant differences in the measured items between AWD and AWDS were attributed to similar variation patterns in the surface water level. The results confirm the AWD's performance as a mitigation option for paddy GHG emission in Central Vietnam. ARTICLE HISTORY

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Section: The Magnitude Of Ghg Emission In This Sitesupporting

confidence: 49%

Section: The Magnitude Of Ghg Emission In This Sitementioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impacts of alternate wetting and drying on greenhouse gas emission from paddy field in Central Vietnam

Tran

Hoang

Tokida

et al. 2017

Soil Science and Plant Nutrition

View full text Add to dashboard Cite

show abstract

“…According to the study, introduction of fecal methanogens were the direct cause of methane emission increase in case of cow manure, whereas swine fecal methanogens were not detected in paddy field, although high methane emission was observed. Other studies also reported high methane emission from rice fields due to pig manure addition (Pandey et al, 2014;Nguyen et al, 2015). Pig feces contain prevalent microbes that metabolize carbohydrates (Lamendella et al, 2011), therefore, use of pig manure could introduce substrate producers for indigenous methanogens.…”

Section: 미생물학회지 제52권 제2호mentioning

confidence: 98%

Metagenomics analysis of methane metabolisms in manure fertilized paddy soil

Nguyen¹,

Ho²,

Lee³

et al. 2016

The Korean Journal of Microbiology

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Under flooded rice fields, methanogens produce methane which comes out through rice stalks, thus rice fields are known as one of the anthropogenic sources of atmospheric methane. Studies have shown that use of manure increases amount of methane emission from rice. To investigate mechanisms by which manure boosts methane emission, comparative soil metagenomics between inorganically (NPK) and pig manure fertilized paddy soils (PIG) were conducted. Results from taxonomy analysis showed that more abundant methanogens, methanotrophs, methylotrophs, and acetogens were found in PIG than in NPK. In addition, BLAST results indicated more abundant carbohydrate mabolisetm functional genes in PIG. Among the methane metabolism related genes, PIG sample showed higher abundance of methyl-coenzyme M reductase (mcrB /mcrD /mcrG ) and trimethylamine-corrinoid protein Co-methyltransferase (mttB ) genes. In contrast, genes that down regulate methane emission, such as trimethylamine monooxygenase (tmm) and phosphoserine/ homoserine phosphotransferase (thrH ), were observed more in NPK sample. In addition, more methanotrophic genes (pmoB /amoB / mxaJ ), were found more abundant in PIG sample. Identifying key genes related to methane emission and methane oxidation may provide fundamental information regarding to mechanisms by which use of manure boosts methane emission from rice. The study presented here characterized molecular variation in rice paddy, introduced by the use of pig manure.

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The effects of Chinese milk vetch returning with nitrogen fertilizer on rice yield and greenhouse gas emissions

et al. 2019

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Fertilizer management and straw returning are effective measures to regulate greenhouse gas emissions and increase crop yields, which have attracted wide attention in agricultural production. To clarify the effect of Chinese milk vetch returning with nitrogen fertilizer on rice yield and greenhouse gas emissions in paddy field, field experiments were conducted during 2017–2018 and four treatments were proposed in this study, including the treatments with Chinese milk vetch returning plus different nitrogen fertilizer application amount, namely RA, RB, RC, and control CK (winter fallow without Chinese milk vetch returning). The results showed that treatments RA, RB, and RC significantly increased the early rice yield by 15.35%, 12.94%, and 15.35%, respectively (P<0.05), and treatment RA had the best effect on the annual yield (P<0.05) compared with control CK. Meanwhile, all the treatments with Chinese milk vetch returning plus nitrogen fertilizer increased the global warming potential, but the difference between RA, RB, and control CK was not significant (P>0.05); the greenhouse gas intensity produced by RA was 11.76% lower than control CK. In summary, treatment RA, followed by RB, had the best effect in increasing rice production and reducing greenhouse gas emissions in paddy fields. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Organic matter and water management strategies to reduce methane and nitrous oxide emissions from rice paddies in Vietnam

Cited by 174 publications

References 43 publications

Impacts of alternate wetting and drying on greenhouse gas emission from paddy field in Central Vietnam

Impacts of alternate wetting and drying on greenhouse gas emission from paddy field in Central Vietnam

Metagenomics analysis of methane metabolisms in manure fertilized paddy soil

The effects of Chinese milk vetch returning with nitrogen fertilizer on rice yield and greenhouse gas emissions

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