N2O emission in relation to plant and soil properties and yield of rice varieties

Baruah, K. K.; Gogoi, Bhabesh; Gogoi, P. K.; Gupta, Prabhat K.

doi:10.1051/agro/2010021

Cited by 18 publications

(7 citation statements)

References 24 publications

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“…A study by Gogoi et al (2008) demonstrated that traditional rice cultivars with a longer vegetative growth stage produced higher methane uxes than high-yielding varieties. Baruah et al (2010) also showed that high-yielding rice varieties emitted less CH 4 and N 2 O than traditional varieties. ese GHG emissions signi cantly positively correlate with leaf area, leaf number, tiller number, and the root's dry weight.…”

Section: E Effect Of Rice Varieties On Ghg Emissions From Rice Eldsmentioning

confidence: 90%

Greenhouse Gas Emission from Rice field in Indonesia: Challenge for future research and development

Ariani

Haryono

Hanudin

2021

IJG

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Rice is an essential crop in Indonesia. Any aspects of rice to increase productivity have been well studied and documented; however, there are still lacking well-documented studies on its environmental aspects, including climate change. Many researches might already be conducted, but only a few have been published in a peer-reviewed journal. There is still a lack of robust data on greenhouse gas (GHG) emissions from the rice field in Indonesia, factors affecting and the technology on how to reduce it. From the reviewed publications, it was found out that research only conducted under a controlled environmental setting. More research on understanding the controlling factors (e.g., water management, rice cultivar, soil types, and fertilizer) of GHG emission from rice field is still needed. The result will introduce a sustainable farming practice, with low in GHG emissions, high in productivity, simple to apply and generate more income to farmers. This review has identified the gaps for future research and development in Indonesia. The research should meet the need, either national or global strategies. Development of a new farming practice will succeed in the presence of government policies. Therefore an intensive interdisciplinary approach between researcher and other stakeholders should be conducted.

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Section: E Effect Of Rice Varieties On Ghg Emissions From Rice Eldsmentioning

confidence: 90%

Greenhouse Gas Emission from Rice field in Indonesia: Challenge for future research and development

Ariani

Haryono

Hanudin

2021

IJG

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“…As WFPS exceeds 60%, availability of O 2 and CO 2 substrate for nitrifiers declines due to severely Transpiration 12 19 26 33 40 47 54 61 68 75 82 89 96 103 110 Sonalika 0.16a 1.15c 6.18d 6.35d 5.87c 10.10c 4.88c 5.76b 5.71d 6.03d 10.43c 6.09d 7.78c 7.13c 7.08c HUW 468 0.16a 1.21b 6.38c 6.40c 6.15a 10.33b 5.85a 6.13a 6.19b 6.87c 10.89b 7.13c 7.76c 6.76d 6.73d HUW 234 0.17a 1.26a 6.51a 6.58a 6.17a 10.73a 4.96b 6.11a 6.11c 9.82a 11.13a 7.38b 10.47b 7.62b 7.61a DBW 14 0.15a 1.12c 6.48b 6.55b 5.98b 10.67a 5.81a 6.12a 6.26a 9.72b 11.11a 7. restricted diffusion rates (Davidson and Schimel 1995). Maximum N 2 O is produced when O 2 concentrations are low enough to promote reduction of NO 3 -, but not so low as to promote reduction of N 2 O into N 2 as O 2 is known to inhibit nitrous oxide reductase enzyme which plays a significant role in denitrification (Baruah et al 2010b). In the present experiment, seasonal and within-variety variation in N 2 O emission was studied in relation to soil moisture content over the crop growing period.…”

Section: Discussionmentioning

confidence: 99%

“…An inverse relationship between photosynthate partitioning to the grains and green house gas emission have been reported in number of studies (Sass and Cicerone 2002;Denier van der Gon et al 2002;Das and Baruah 2008a, c). Study conducted on rice by Baruah et al (2010b) showed that varieties with profuse vegetative growth have higher seasonal N 2 O emission and lower grain yield because much of the photosynthates are translocated to the vegetative parts and a lesser amount to the grains. In our study except Sonalika other varieties did not show similar relationship between N 2 O emission and grain yield.…”

Section: Discussionmentioning

confidence: 99%

Plant morphophysiological and anatomical factors associated with nitrous oxide flux from wheat (Triticum aestivum)

et al. 2011

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Experiments were conducted to study the dynamics of nitrous oxide (N₂O) emission from wheat varieties viz., Sonalika, HUW 468, HUW 234 and DBW 14 grown in alluvial soils of North Bank Plain Agroclimatic Zone of Assam, India. Attempts were made to find out the relationship of N₂O emission with plant morphophysiological, anatomical and soil properties. N₂O fluxes from wheat varieties ranged from 40 μg N₂O-N m⁻² h⁻¹ to 295 μg N₂O-N m⁻² h⁻¹. Soil organic carbon and soil temperature have shown significant relationship with N₂O flux. The rate of leaf transpiration recorded from the wheat varieties at different growth stages exhibited a positive correlation with N₂O emission suggesting that movement of N₂O along with the transpirational water flow may be an important mechanism of N₂O transport and emission through wheat plants. Anatomical investigation by scanning electron microscope revealed that N₂O emission has relationship with stomatal frequency of leaf and leaf sheaths. Variety HUW 234 with the highest stomatal frequency of leaf and leaf sheath also recorded higher seasonal N₂O emission compared to other varieties. Seasonal N₂O emission (E(sif)) of the varieties ranged from 3.25 to 3.81 kg N₂O-N ha⁻¹. Significant variations in E(sif) values were recorded within the varieties.

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“…This multi-stage development leads to a complex relationship between aggregate size, intra-aggregate structure and soil structure (Ball, 2013;Totsche et al, 2017Totsche et al, , 2018, which influences soil aeration, substrate distribution and pore water dynamics (Six et al, 2004). Often, micro-site heterogeneity increases with aggregate size, thus fostering the simultaneous activity of different N 2 O producing microbial communities with distinct functional traits (Bateman and Baggs, 2005). Aggregate size effects on N 2 O production and consumption have generally been studied in static batch incubation exper-iments with a comparatively small number of isolated aggregates of uniform size, at constant levels of water saturation (Diba et al, 2011;Drury et al, 2004;Jahangir et al, 2011;Khalil et al, 2005;Sey et al, 2008) and through modelling approaches (Renault and Stengel, 1994;Stolk et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Alteration of nitrous oxide emissions from floodplain soils by aggregate size, litter accumulation and plant–soil interactions

et al. 2018

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Abstract. Semi-terrestrial soils such as floodplain soils are considered potential hot spots of nitrous oxide (N2O) emissions. Microhabitats in the soil – such as within and outside of aggregates, in the detritusphere, and/or in the rhizosphere – are considered to promote and preserve specific redox conditions. Yet our understanding of the relative effects of such microhabitats and their interactions on N2O production and consumption in soils is still incomplete. Therefore, we assessed the effect of aggregate size, buried leaf litter, and plant–soil interactions on the occurrence of enhanced N2O emissions under simulated flooding/drying conditions in a mesocosm experiment. We used two model soils with equivalent structure and texture, comprising macroaggregates (4000–250 µm) or microaggregates (<250 µm) from a N-rich floodplain soil. These model soils were planted with basket willow (Salix viminalis L.), mixed with leaf litter or left unamended. After 48 h of flooding, a period of enhanced N2O emissions occurred in all treatments. The unamended model soils with macroaggregates emitted significantly more N2O during this period than those with microaggregates. Litter addition modulated the temporal pattern of the N2O emission, leading to short-term peaks of high N2O fluxes at the beginning of the period of enhanced N2O emission. The presence of S. viminalis strongly suppressed the N2O emission from the macroaggregate model soil, masking any aggregate-size effect. Integration of the flux data with data on soil bulk density, moisture, redox potential and soil solution composition suggest that macroaggregates provided more favourable conditions for spatially coupled nitrification–denitrification, which are particularly conducive to net N2O production. The local increase in organic carbon in the detritusphere appears to first stimulate N2O emissions; but ultimately, respiration of the surplus organic matter shifts the system towards redox conditions where N2O reduction to N2 dominates. Similarly, the low emission rates in the planted soils can be best explained by root exudation of low-molecular-weight organic substances supporting complete denitrification in the anoxic zones, but also by the inhibition of denitrification in the zone, where rhizosphere aeration takes place. Together, our experiments highlight the importance of microhabitat formation in regulating oxygen (O2) content and the completeness of denitrification in soils during drying after saturation. Moreover, they will help to better predict the conditions under which hot spots, and “hot moments”, of enhanced N2O emissions are most likely to occur in hydrologically dynamic soil systems like floodplain soils.

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N2O emission in relation to plant and soil properties and yield of rice varieties

Cited by 18 publications

References 24 publications

Greenhouse Gas Emission from Rice field in Indonesia: Challenge for future research and development

Greenhouse Gas Emission from Rice field in Indonesia: Challenge for future research and development

Plant morphophysiological and anatomical factors associated with nitrous oxide flux from wheat (Triticum aestivum)

Alteration of nitrous oxide emissions from floodplain soils by aggregate size, litter accumulation and plant–soil interactions

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