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Mitigation of yield-scaled greenhouse gas emissions from rice through biological interventions

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Title Mitigation of yield-scaled greenhouse gas emissions from rice through biological interventions
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Creator Sandeep K. Malyan
Arti Bhatia
Ritu Tomer
Ramesh Chand Harit
Niveta Jain
Arpan Bhowmik
Rajeev Kaushik
 
Subject Rice
Plant growth promoting bacteria
Yield scaled GWP emission
Methane
Nitrous oxide
Mitigation
 
Description Not Available
Irrigated transplanted flooded rice is a major source of methane (CH4) emission. We carried out experiments for 2 years in irrigated flooded rice to study if interventions like methane-utilizing bacteria, Blue-green algae (BGA), and Azolla could mitigate the emission of CH4 and nitrous oxide (N2O) and lower the yield-scaled global warming potential (GWP). The experiment included nine treatments: T1 (120 kg N ha−1 urea), T2 (90 kg N ha−1 urea + 30 kg N ha−1 fresh Azolla), T3 (90 kg N ha−1 urea + 30 kg N ha−1 Blue-green algae (BGA)), T4 (60 kg N ha−1 urea + 30 kg N ha−1 BGA + 30 kg N ha−1 Azolla), T5 (120 kg N ha−1 urea + Hyphomicrobium facile MaAL69), T6 (120 kg N ha−1 by urea + Burkholderia vietnamiensis AAAr40), T7 (120 kg N ha−1 by urea + Methylobacteruim oryzae MNL7), T8 (120 kg N ha−1 urea + combination of Burkholderia AAAr40, Hyphomicrobium facile MaAL69, Methylobacteruim oryzae MNL7), and T9 (no N fertilizer). Maximum decrease in cumulative CH4 emission was observed with the application of Methylobacteruim oryzae MNL7 in T7 (19.9%), followed by Azolla + BGA in T4 (13.2%) as compared to T1 control. N2O emissions were not significantly affected by the application of CH4-oxidizing bacteria. However, significantly lower (P
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Date 2022-02-11T06:57:56Z
2022-02-11T06:57:56Z
2021-05-13
 
Type Research Paper
 
Identifier Malyan, S. K., Bhatia, A., Tomer, R., Harit, R. C., Jain, N., Bhowmik, Arpan and Kaushik, R. (2021). Mitigation of yield-scaled greenhouse gas emissions from rice through biological interventions. Environmental Science and Pollution Research. DOI: 10.1007/s11356-021-14210-z.
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http://krishi.icar.gov.in/jspui/handle/123456789/69768
 
Language English
 
Relation Not Available;
 
Publisher Environmental Science and Pollution Research