Journal of Earth Science & Climatic Change
Open Access

Research Article

Evaluation N2O Emissions from Intensive Manure Managements in a Dairy Area

Meihua D^1*, Ying H¹, Muneoki Y², Sonoko DBK^3,4 and Masayuki H⁵

¹School of Environment and Resources Science, Zhejiang University, Hangzhou, 310058, China

²United Graduate School of Agriculture Science, Tokyo University of Agriculture and Technology, Fuchu, 183-8509, Japan

³Faculty of Life Sciences, Humboldt University of Berlin, Berlin 14195, Germany

⁴Leibniz Centre for Agricultural Landscape Research, Institute of Land Use Systems, Eberswalder street no. 84, 15374 Muencheberg, Germany

⁵Field Science Center, Kitasato University, Aomori, 183-8509, Japan

*Corresponding Author:

Meihua D
School of Environment and Resources Science
Zhejiang University, Hangzhou, 310058, China
Tel: 86-751-88982907
E-Mail: meihuad@163.com

Received Date: April 12, 2017; Accepted Date: April 28, 2017; Published Date: April 30, 2017

Citation: Meihua D, Ying H, Muneoki Y, Sonoko DBK, Masayuki H (2017) Evaluation N₂O Emissions from Intensive Manure Managements in a Dairy Area. J Earth Sci Clim Change 8:398. doi: 10.4172/2157-7617.1000398

Copyright: © 2017 Meihua D, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

To investigate N₂O emissions from intensive manure managements, eight farmer’s fields covering paddy rice and uplands cropping systems in a livestock watershed of central Japan has been selected. The manure was popular applied with PIAF (Ploughing Immediately after Fertilization), FKSSL (Fertilizer Keeping on the Surface Soil for a Longer Time) and only applied in winter fallow season for paddy rice under the application rate of 200-800 kg N ha^-1yr^-1. Field gas samples were conducted by static chamber method. The result showed that N₂O flux varied from 0 to 1607 μg N m^-2h^-1 in upland crop systems and from 0 to 924 μg N m^-2 h^-1 in paddy fields. And the annual emission ranged from 1.91- 9.26 kg N ha-1 yr^-1 accounting for 0.48 ± 0.41% of input N in uplands and 1.28-1.91 kg N ha-1 yr^-1 accounting for 0.43 ± 0.27% of input N in paddy rice, respectively. In rice/fallow system, more N₂O emitted and the emission factor was 0.59 ± 0.07% due to the manure applied in fallow winter season. The N₂O emission from FKSSL was 0.85 ± 0.79% of input N, and 3.4 times higher than PIAF. Slurry application contributed N₂O emission 0.71 ± 0.37% of input N with 2 times higher than that of dry compost manure plots.

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