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Agriculture 2017, 7(3), 29; doi:10.3390/agriculture7030029

Nitrous Oxide Emission from Organic Fertilizer and Controlled Release Fertilizer in Tea Fields

1
College of environmental and resource science, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China
2
Graduate School of Agriculture, Department of Biological Production Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
3
Institute of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
4
Green Tea Laboratory, Saitama Prefectural Agriculture and Forestry Research Center, 244-2 Kamiyaganuki, Iruma, Saitama 358-0042, Japan
5
Leibniz Centre for Agricultural Landscape Research, Institute of Land Use Systems, Eberswalder str. 84, 15374 Muencheberg, Germany
6
Leibniz Centre for Agricultural Landscape Research, Institute of Land Use Systems, Eberswalder str. 84, 15374 Muencheberg, Germany
*
Author to whom correspondence should be addressed.
Received: 8 February 2017 / Revised: 9 March 2017 / Accepted: 9 March 2017 / Published: 21 March 2017
(This article belongs to the Special Issue C and N Cycling and Greenhouse Gas Emissions in Agroecosystem)
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Abstract

A field experiment was conducted for two years in the Green Tea Laboratory of Saitama Prefectural Agriculture and Forestry Research Center, Iruma, Saitama, Japan from March 2014 to December 2015. Controlled release fertilizers (CRF) or organic fertilizers (ORG), which are a mixture of chicken manure and oil cake, were applied with the amount of 450 kg·N·ha−1·year−1 in 2014 and 397 kg·N·ha−1·year−1 in 2015. Nitrous oxide (N2O) emissions from soil in green tea fields were measured by the closed chamber method. The results showed that CRF has significantly lower N2O compared to ORG. The cumulative N2O emissions from CRF accounted for 51% of N2O emissions from ORG fields and 138% of control with no fertilizer treatment. The N2O flux from the row was higher than that under the canopy, since fertilizer was applied on the row. However, the total emission from the area between the rows was lower than that under the canopy because the area ratio between the row and canopy was 1:5. View Full-Text
Keywords: controlled release fertilizer (CRF); organic fertilizer (ORG); nitrous oxide; row; canopy controlled release fertilizer (CRF); organic fertilizer (ORG); nitrous oxide; row; canopy
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Deng, M.; Hou, M.; Ohkama-Ohtsu, N.; Yokoyama, T.; Tanaka, H.; Nakajima, K.; Omata, R.; Bellingrath-Kimura, S.D. Nitrous Oxide Emission from Organic Fertilizer and Controlled Release Fertilizer in Tea Fields. Agriculture 2017, 7, 29.

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