Association between contrasting methane emissions of two rice (Oryza sativa L.) cultivars from the irrigated agroecosystem of northeast India and their growth and photosynthetic characteristics

Das, Kaushik; Baruah, K. K.

doi:10.1007/s11738-008-0156-4

Cited by 21 publications

(11 citation statements)

References 35 publications

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“…Eshun et al [21] and Das and Baruah [22] agreed when they both asserted that the environmental impact of rice cultivation in the tropics, especially in Africa, has not received much attention from the research community. In summarizing recent available data on GHG emissions from sub-Saharan African natural and agricultural lands, Kim et al [23] were able to cite only 2 out of 73 rice production studies.…”

Section: Current Research In Africamentioning

confidence: 99%

“…The physiology of rice plants regulates methane emissions by making available sources of methanogenic substrates through carbon in the roots, including exudates, and also by transporting CH 4 emissions through the aerenchyma [11,[31][32][33][34]. Several studies have confirmed variations in the emission levels of different rice cultivars [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39].…”

Section: Rice Cultivar (Variety) Impact On Ghg Emissionsmentioning

confidence: 99%

“…Das and Baruah [22] examined the morpho-physiological characteristics of rice on methane emissions from a paddy system in India using a traditional and improved rice variety. The study recorded a higher seasonal flux for CH 4 in the traditional variety compared to the improved cultivar.…”

Section: Rice Cultivar (Variety) Impact On Ghg Emissionsmentioning

confidence: 99%

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Rice Cultivation and Greenhouse Gas Emissions: A Review and Conceptual Framework with Reference to Ghana

2017

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Abstract:Rice is an essential crop in Ghana. Several aspects of rice have been studied to increase its production; however, the environmental aspects, including impact on climate change, have not been studied well. There is therefore a gap in knowledge, and hence the need for continuous research. By accessing academic portals, such as Springer Open, InTech Open, Elsevier, and the Kwame Nkrumah University of Science and Technology's offline campus library, 61 academic publications including peer reviewed journals, books, working papers, reports, etc. were critically reviewed. It was found that there is a lack of data on how paddy rice production systems affect greenhouse gas (GHG) emissions, particularly emissions estimation, geographical location, and crops. Regarding GHG emission estimation, the review identified the use of emission factors calibrated using temperate conditions which do not suit tropical conditions. On location, most research on rice GHG emissions have been carried out in Asia with little input from Africa. In regard to crops, there is paucity of in-situ emissions data from paddy fields in Ghana. Drawing on the review, a conceptual framework is developed using Ghana as reference point to guide the discussion on fertilizer application, water management rice cultivars, and soil for future development of adaptation strategies for rice emission reduction.

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Section: Current Research In Africamentioning

confidence: 99%

Section: Rice Cultivar (Variety) Impact On Ghg Emissionsmentioning

confidence: 99%

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Rice Cultivation and Greenhouse Gas Emissions: A Review and Conceptual Framework with Reference to Ghana

2017

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“…After the re‐flooding event, the emission flux dramatically decreased because both reduced iron and manganese were converted to their oxidized forms . The second peak about 80 days after transplanting can be attributed to higher substrates concentration …”

Section: Discussionmentioning

confidence: 99%

Estimation of methane emissions based on crop yield and remote sensing data in a paddy field

Shi

Zhang

et al. 2020

Greenhouse Gases

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Quantifying agricultural greenhouse gas (GHG) emissions is important for addressing global warming. In this regard, empirical models were constructed to evaluate the feasibility of using rice yield and canopy spectral properties for estimating paddy cumulative methane (CH4) emissions (CCE). A field experiment with shading treatments was conducted in 2017. A static chamber‐gas chromatography was used to measure CH4 fluxes during the growing season. Canopy hyperspectral reflectance was measured and then used to calculate the multispectral normalized difference vegetation index (NDVI), the ratio vegetation index (RVI), and the enhanced vegetation index (EVI). The results show that CH4 emissions were positively correlated to rice yield and biomass, indicating that higher biomass provided more substrates for CH4 generation. O2 availability maybe a main factor in the CCE differences under shading treatments. RVI and EVI showed a stronger positive relationship to CH4 emissions than NDVI. The empirical model including yield and EVI‐JS (EVI of jointing‐booting stage) as input variables performed better (adj‐R2 = 0.85, root mean square error [RMSE] = 12.26 kg ha−1) than the model that included only yield (adj‐R2 = 0.5, RMSE = 22.5 kg ha−1). This study suggests that it is feasible to apply remote sensing in paddy CH4 estimation, providing a referable attempt for future regional agricultural GHG emissions quantification. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd.

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“…Different rates of soil gaseous emissions have been related to specific cultivars, crop growth and developmental stage (Wang et al 1997;Wang and Adachi 2000;Das and Baruah 2008). Methane emission of rice cultivars was related to higher root biomass, root exudates, and number of tillers because the plant acts as a conduit for methane transport (Wang et al 1997;Wang and Adachi 2000).…”

Section: Cultivar Mixturesmentioning

confidence: 99%

Cultivar mixtures of processing tomato in an organic agroecosystem

2010

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At an organic farm in California, managed biodiversity was manipulated by establishing a mustard cover crop (MCC) and fallow during winter, and after incorporation, tomato mixtures of one, three, and five cultivars were planted in the spring (1-cv, 3-cv, and 5-cv, respectively). It was hypothesized that cultivar mixtures may increase yields over a monoculture if disease pressure or nitrogen (N) availability is affected by the previous cover crop. The monoculture (1-

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Association between contrasting methane emissions of two rice (Oryza sativa L.) cultivars from the irrigated agroecosystem of northeast India and their growth and photosynthetic characteristics

Cited by 21 publications

References 35 publications

Rice Cultivation and Greenhouse Gas Emissions: A Review and Conceptual Framework with Reference to Ghana

Rice Cultivation and Greenhouse Gas Emissions: A Review and Conceptual Framework with Reference to Ghana

Estimation of methane emissions based on crop yield and remote sensing data in a paddy field

Cultivar mixtures of processing tomato in an organic agroecosystem

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