Effect of Organic Fertilizer on N2O Emission in Yellow Cornfield

文献类型: 外文期刊

第一作者: Jiang Yuzhou

作者: Jiang Yuzhou;Wang Peng;Liu Qingli;Zhang Yungui;Li Zhihong;Zou Yan;Zhu Jingwei;Shi Junxiong

作者机构:

关键词: N2O emission;Fertilizer combinations;C/N ratio;Yellow cornfield;China

期刊名称:INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY ( 影响因子:0.822; 五年影响因子:0.906 )

ISSN: 1560-8530

年卷期: 2018 年 20 卷 1 期

页码:

收录情况: SCI

摘要: The experiment was conducted to explore the impact of different environmental factors on nitrous oxide (N2O) emission flux after application of fertilizer. An experiment was conducted in 2016 to determine the N2O emissions in maize yellow soil. There were four treatments: no fertilizer (CK); common fertilizer (CF); chemical fertilizer + organic fertilizer (OF); fertilizer + bio-organic fertilizer (BF). Therefore, the experiment was designed to study N2O emission characteristics and environmental factors after application of organic fertilizer. The results indicated that N2O emissions reached three peaks in corn-growing season. An average N2O emission flux of the four treatment process could be ranked as OF>BF>CF>CK, which was measured as 0.080, 0.069, 0.010 and 0.007 mg.m(-2) .h(-1) respectively; the total N2O emissions of soil after application of OF and BF were improved for 15 times and 11 times, respectively as compared with CK. According to relevant analysis, N2O emission flux of yellow cornfield was mainly related either to the carbon-nitrogen ratio (P<0.05) in the farmland or to the soil nitrate nitrogen (N) content (P<0.05) after application of organic fertilizer. Moreover, N2O emissions of yellow cornfield were increased after application of OF and BF, and relatively reduced after CF. As a result, the increased N2O emissions were mainly caused by carbon nitrogen ratio and soil nitrate content of cornfield. Therefore, an important way to reduce N2O emissions in cornfield is to control the application of organic fertilizer and carbon nitrogen ratio. (C) 2018 Friends Science Publishers

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