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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP
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    Abstract - Issue Sep 2016, 37 (5)                                     Back


nstantaneous and historical temperature effects on a-pinene

Effect of cattle manure amendment and rice cultivars on methane emission from paddy rice soil under continuously flooded conditions

 

Aung Zaw Oo1, Khin Thuzar Win1, Takashi Motobayashi1 and Sonoko Dorothea Bellingrath-Kimura2*

1Tokyo University of Agriculture and Technology, Saiwaicho 3-5-8, Fuchu, Tokyo 183-8509, Japan

????? 2Leibniz Centre for Agricultural Landscape Research, Institute of Land Use Systems, Eberswalder str. 84, 15374 Muencheberg, Germany

*Corresponding Author E-mail: belks@zalf.de

 

 

Publication Data

Paper received:

04 November 2014

 

Revised received:

10 May 2015

 

Re-revised received:

08 July 2016

 

Accepted:

12 July 2016

 

Abstract

A pot experiment was conducted to investigate the influence of cultivar difference (Nipponbare, Fujiminori, Kinmaze and forage rice Leaf star) on methane emission (CH4) with and without cattle manure application under continuous flooded conditions. The results showed that there was a seasonal change in CH4 flux with two to three peaks between 28 and 98 days after transplanting (DAT). The average CH4 fluxes throughout the growing season for Leaf star (14.8 mg CH4-C m-2h-1) and Nipponbare (13.9 mg CH4-C m-2h-1) were significantly higher than those for Fujiminori (11.9 mg CH4-C m-2h-1) and Kinmaze (13.5 mg CH4-C m-2h-1). The cumulative CH4 emission in the growing season was significantly higher in Leaf star (47.3 g CH4-C m-2) than Fujiminori (38.2 g CH4-C m-2). Methane fluxes were significantly and positively correlated with plant height and tiller number throughout the growing season, and cumulative CH4 emission was positively correlated with above-ground biomass production at harvest. Application of cattle manure (cm) significantly reduced the average rate and cumulative CH4 emission (35.1%), and flood-water dissolved organic carbon (DOC) concentration (18.2%). Cattle manure reduced the DOC concentration in flood water at the later period of growing season, which coincided with CH4 flux suppression. Methane emission can be mitigated by choosing rice cultivar and application of composted cattle manure.

 

 

Key words

Cattle manure, Continuous flooding, Dissolved organic carbon, Methane mitigation, Rice cultivars 

 

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