scholarly journals Effects of Green Manure Application and Prolonging Mid-Season Drainage on Greenhouse Gas Emission from Paddy Fields in Ehime, Southwestern Japan

Agriculture ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 29 ◽  
Author(s):  
Yo Toma ◽  
Nukhak Nufita Sari ◽  
Koh Akamatsu ◽  
Shingo Oomori ◽  
Osamu Nagata ◽  
...  
Keyword(s):  
Greenhouse Gas ◽  
Green Manure ◽  
Greenhouse Gas Emission ◽  
Rice Paddy ◽  
Paddy Fields ◽  
N2o Emissions ◽  
Gas Emission ◽  
Manure Application ◽  
Ch4 And N2o ◽  
Rice Paddy Fields

Green manure application helps maintain soil fertility, reduce chemical fertilizer use, and carbon sequestration in the soil. Nevertheless, the application of organic matter in paddy fields induces CH4 and N2O emissions. Prolonging mid-season drainage reduces CH4 emissions in paddy fields. Therefore, the combined effects of green manure application and mid-season drainage prolongation on net greenhouse gas emission (NGHGE) were investigated. Four experimental treatments were set up over a 2-year period: conventional mid-season drainage with (CMG) and without (CM) green manure and prolonged (4 or 7 days) mid-season drainage with (PMG) and without (PM) green manure. Astragalus sinicus L. seeds were sown in autumn and incorporated before rice cultivation. No significant difference in annual CH4 and N2O emissions, heterotrophic respiration, and NGHGE between treatments were observed, indicating that green manure application and mid-season drainage prolongation did not influence NGHGE. CH4 flux decreased drastically in PM and PMG during mid-season drainage under the hot and dry weather conditions. However, increasing applied carbon increases NGHGE because of increased CH4 and Rh. Consequently, combination practice of mid-season drainage prolongation and green manure utilization can be acceptable without changing NGHGE while maintaining grain yield in rice paddy fields under organically managed rice paddy fields.

Effect of organic, inorganic and slow-release urea fertilisers on CH4 and N2O emissions from rice paddy fields

2016 ◽  
Vol 15 (2) ◽  
pp. 317-330 ◽  
Author(s):  
Mai Van Trinh ◽  
Mehreteab Tesfai ◽  
Andrew Borrell ◽  
Udaya Sekhar Nagothu ◽  
Thi Phuong Loan Bui ◽  
...  
Keyword(s):  
Slow Release ◽  
Rice Paddy ◽  
Paddy Fields ◽  
N2o Emissions ◽  
Ch4 And N2o ◽  
Slow Release Urea ◽  
Rice Paddy Fields

scholarly journals Soil CH4 and N2O Emissions from Rice Paddy Fields in Southern Brazil as Affected by Crop Management Levels: a Three-Year Field Study

2018 ◽  
Vol 42 (0) ◽  
Author(s):  
Tiago Zschornack ◽  
Carla Machado da Rosa ◽  
Cecília Estima Sacramento dos Reis ◽  
Gabriel Munhoz Pedroso ◽  
Estefânia Silva Camargo ◽  
...  
Keyword(s):  
Field Study ◽  
Crop Management ◽  
Rice Paddy ◽  
Paddy Fields ◽  
N2o Emissions ◽  
Southern Brazil ◽  
Ch4 And N2o ◽  
Rice Paddy Fields

scholarly journals Direct N2O emissions from rice paddy fields: Summary of available data

2005 ◽  
Vol 19 (1) ◽  
Author(s):  
Hiroko Akiyama ◽  
Kazuyuki Yagi ◽  
Xiaoyuan Yan
Keyword(s):  
Rice Paddy ◽  
Paddy Fields ◽  
N2o Emissions ◽  
Rice Paddy Fields

Straw recycling in rice paddy: Trade-off between greenhouse gas emission and soil carbon stock increase

2020 ◽  
Vol 199 ◽  
pp. 104598 ◽  
Author(s):  
Jin Ho Lee ◽  
Jeong Gu Lee ◽  
Seung Tak Jeong ◽  
Hyo Suk Gwon ◽  
Pil Joo Kim ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Greenhouse Gas ◽  
Carbon Stock ◽  
Greenhouse Gas Emission ◽  
Rice Paddy ◽  
Gas Emission ◽  
Trade Off ◽  
Soil Carbon Stock

scholarly journals Subsidence of rice paddy and upland crop fields in Shinotsu Peatland, Hokkaido, Japan

2020 ◽  
Vol 382 ◽  
pp. 231-235
Author(s):  
Minoru Yokochi ◽  
Koichi Sekimoto ◽  
Takashi Inoue
Keyword(s):  
Greenhouse Gas ◽  
Land Surface ◽  
Agricultural Land ◽  
Greenhouse Gas Emission ◽  
Rice Paddy ◽  
Agricultural Land Use ◽  
Gas Emission ◽  
Crop Fields ◽  
Upland Crop

Abstract. Agricultural land use on peatlands inevitably causes ongoing land surface subsidence resulting in a reduction of productivity. In addition, oxidation of the peat substrate associated with subsidence is responsible for greenhouse gas emission with the ensuing consequence for global climatic stability. A concept of “paludiculture”, the utilisation of wet or rewetted peatlands for agriculture, has been proposed in European countries to avoid further subsidence and greenhouse gas emission. However, few studies have documented a long-term record of subsidence through agriculture in wet peatlands such as paddy fields for rice cultivation. In this study, we measured the subsidence rates of peatland in rice paddy use and compared them to the rates in peatland with upland crop cultivation. The average subsidence between 2006 and 2016 for the paddy plots was 3.6±1.9 cm (± SE) and significantly less than that of 25.6±1.7 cm for the upland plots, and the subsidence reduced linearly as the period of paddy use increased. These results suggest that paddy use of peatlands can effectively reduce subsidence. Our results will encourage the use of peatlands with a wet environment as one of the valid options for future peatland management in terms of mitigation of land subsidence and peat loss.

scholarly journals Evaluating Greenhouse Gas Emissions in Promising Tillage and Manure Application Practices at Borderview Farm

2017 ◽  
Author(s):  
Carol Adair ◽  
Heather Darby ◽  
Tyler Goeschel ◽  
Lindsay Barbieri ◽  
Alissa White
Keyword(s):  
Carbon Dioxide ◽  
Nitrous Oxide ◽  
Greenhouse Gas ◽  
Research Team ◽  
Greenhouse Gas Emission ◽  
Nitrous Oxide Emissions ◽  
Gas Emission ◽  
Manure Application ◽  
Measuring Device ◽  
No Till

A research team at UVM, led by Dr. Carol Adair and Dr. Heather Darby, is evaluating the benefits and drawbacks of four different tillage approaches (conventional, strip, vertical, and no till) and two different methods of manure application (broadcast and injection). The goal is to determine the practices best suited for reducing greenhouse gas emission, improving carbon storage and limiting nitrogen losses. The team measures carbon dioxide and nitrous oxide emissions from the treatments every two weeks or more frequently after events (large rainfall, manure application) using a measuring device called photoacoustic multigas monitor.

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