Effects of fresh rice straw and water levels on CO2-C gas emission, soil organic carbon content and rice production

Hossain, Mohammad Bellal

doi:10.3329/jujbs.v7i1.37973

Cited by 3 publications

(4 citation statements)

References 8 publications

(10 reference statements)

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“…Similar to the observed different CO 2 fluxes in soil respiration during the daytime in response to the different water management practices, Hossain [58] also observed that alternate wetting and drying (AWD) increased CO 2 emission by 16% compared to continuous flooding (CF). This is congruent with our data (Table 1) on night soil respiration under AWD treatment when average total CO 2 flux was higher compared to flux under CF treatment.…”

supporting

confidence: 63%

Effects of Different Water Management and Fertilizer Applications on CO2 Fluxes from a Selected Myanmar Rice (Oryza sativa L.) Cultivar

Min

Rulı́k

2020

IJPSS

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The application of nitrogen fertilizer and the water management practices are important to optimize potential yields in rice cultivation. Moreover, they may affect the emissions patterns of methane (CH4) and carbon dioxide (CO2) emission. Compared to methane, knowledge about the combined effects of different fertilizer rates together with different water management practices on CO2 fluxes are scarce. Therefore, this study aims to assess CO2 fluxes of a selected rice cultivar in response to different fertilizer applications and water management practices. The treatments included two different applications of inorganic fertilizer (recommended rate and farmer’s practice), organic manure application and water management practices; continuous flooding (CF) and alternate wetting and drying (AWD). Mean total CO2 flux in CF was -30.82 g CO2 m-2 d-1 during daytime and 29.64 g CO2 m-2 d-1 during nighttime. Surprisingly, the average net CO2 fluxes were negative under both CF (-49 mg CO2 m-2h-1) and AWD practices (-127 mg CO2 m-2h-1), indicating a net CO2 uptake by the rice plants. Inorganic fertilizer applications led to considerably higher net CO2 emissions compared to the control under both CF and AWD. Conversely, CO2 emission fluxes in the treatment with organic manure showed negative net CO2 fluxes under both water management practices and while revealing the same fresh biomass as observed in other treatments (inorganic fertilizer and control). Taken together, modifications of current cultivation systems toward using organic manure, that emit less CO2, could effectively mitigate CO2 impacts regardless of the selected water management practice.

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supporting

confidence: 63%

Effects of Different Water Management and Fertilizer Applications on CO2 Fluxes from a Selected Myanmar Rice (Oryza sativa L.) Cultivar

Min

Rulı́k

2020

IJPSS

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“…The increased soil organic carbon is due to the addition of organic manures which improved the Physico-chemical properties of the soil, especially in sandy clay loam soil. The addition of organic manures along with inorganic fertilizer in a continuously flooded condition paves the way for the highest organic carbon accumulation which is a main factor for the improvement of soil quality index and minimized environmental hazards [14]. Furthermore, positive interaction between the organics with inorganic NPK eventually increased the overall growth components both above and below ground which attribute the entire physiological function by way of providing nutrients and its relative growth hormones which in turn leads accumulation of more photosynthates.…”

Section: Resultsmentioning

confidence: 99%

INM-A Potential Way of Farming in Reduction of CH4 and CO2 Emission in Rice-sunflower Sequential Cropping System

Ravikumar

Senthilvalavan

Manivannan

2023

IJECC

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Aim: To find out the CH4 and CO2 emission pattern and the considerable amount of SOC sequestered by using different organic sources in sandy clay loam soil. Study Design: Randomized Block Design. Place and Duration of the Study: The study was conducted in a farmer's field at Ayanathur, which is geographically located at 11°23’N latitude, 79°29'E longitude, and an altitude of +26 m MSL. Duration of the study confined to 2 years cycle from September 2016 to January 2018 I and II crops respectively. Methodology: Different sources of organic manures viz., Farm Yard Manure @ 12.5 t ha-1, vermicompost, pressmud, poultry manure, and composted coirpith are each @ 5 t ha-1 were applied as basally and incorporated along with Azospirillum and phosphobacteria @ 2 kg ha-1 as a soil application at the time of last ploughing. Fertilizers were applied as per the treatment schedule of 150:50:50 kg N, P, and K ha-1 was followed throughout the period of study through urea, Di Ammonium phosphate and muriate of potash for rice crops. An open path LICOR analyzer 7700 and 7500 for CH4 and CO2 to find the CH4 and CO2 fluxes during the period of study through calibration of eddy covariance fluxes emissions were calculated. Results: Combined application of a Recommended dose of fertilizers along with Farmyard manure @ 12.5 t ha-1 reduced the CH4 emission by 13.6 and 15 % over other organic sources in rice whereas, the CO2 emission by 54.4 and 53.8% and 61.5 and 53.9 % over other organic sources in rice and sunflower respectively. Concomitantly, the SOC increased by 6.8 and 7.5% in rice and 4,7 and 4.4% in sunflower over other organic sources.

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“…Combined use of chemical fertilizers, 2.0 t C ha-1 fresh rice straw and continuous flooding system performed better results to reduce CO2-C gas emission, increased organic carbon and rice production with maintaining optimum soil pH level with sustainable rice production (Hossain, 2018).…”

Section: Inm On Co 2 Emission In Rice Productionmentioning

confidence: 99%

“…Akhilesh and Nandan (2016) noticed that a higher soil organic carbon stock (43.77 t ha (Naresh et al, 2017). A higher soil organic carbon with a value of 7.8 and 8.6 g kg -1 were recorded with the application of FYM @ 12.5 t ha -1 integrated with 100% RDF + Azospirillum and Phosphobacteria @ 2 kg ha -1 over other organic manure combinations in the successive years of rice crop (Ravikumar and Ganapathy, 2018).The application of organic manures along with chemical fertilizer and continuous flooded condition paves the way for the highest organic carbon accumulation which is a key factor for improvement of soil quality and minimized environmental pollution (Hossain, 2018).…”

Section: Inm On Carbon Dynamics In Rice Productionmentioning

confidence: 99%

Integrated nutrient management - promising way to reduce carbon dioxide and methane emission in flooded rice ecosystem: A review

Ravikumar

Ganapathy

Karthikeyan

et al. 2021

JANS

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Climate change is an inevitable ruling issue caused by the increasing concentration of greenhouse gases (GHG’s) in the atmosphere worldwide. It will have a considerable impact on agriculture and its related fields like live stocks and fisheries. In India, the main sectors contributing to these emissions are industry, agriculture and waste, with a total emission of 334 MT CO2 eq. Besides, the major sources in agriculture are enteric fermentation (63.4%), rice cultivation (20.9%), agricultural soils (13.0%), manure management (2.4%) and on-field burning is the crop residue (2.0%). Thus, the crop productivity sector (rice cultivation, soil and field burning of crop residues) contributes 35.9% to the total emission from agriculture. Therefore, reducing GHG emissions and enhancing the C sequestration in soil and biomass has become challenging. However, the total GHG’s emission from all sectors of the country has decreased from 33% in 1970 to 18% in 2010. Cutting off GHGs emission from agriculture can be achieved by sequestering C and reducing methane emissions(CH4) and carbon dioxide(CO2) through various soil and crop management strategies. Integrated nutrient management (INM) practice ensures the Soil –plant –atmospheric continuum (SPAC) in a promising way, reducing the GHGs emission by sequestering more carbon to soil than emissions. A studious prominent INM solution can be identified to develop a mitigation strategy that helps in climate change adaptation and sustains soil health through soil carbon sequestration.

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Effects of fresh rice straw and water levels on CO2-C gas emission, soil organic carbon content and rice production

Cited by 3 publications

References 8 publications

Effects of Different Water Management and Fertilizer Applications on CO2 Fluxes from a Selected Myanmar Rice (Oryza sativa L.) Cultivar

Effects of Different Water Management and Fertilizer Applications on CO2 Fluxes from a Selected Myanmar Rice (Oryza sativa L.) Cultivar

INM-A Potential Way of Farming in Reduction of CH4 and CO2 Emission in Rice-sunflower Sequential Cropping System

Integrated nutrient management - promising way to reduce carbon dioxide and methane emission in flooded rice ecosystem: A review

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