Effect of biochar and nitrapyrin on nitrous oxide and nitric oxide emissions from a sandy loam soil cropped to maize
Effect of biochar and nitrapyrin on nitrous oxide and nitric oxide emissions from a sandy loam soil cropped to maize
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生物炭和硝基吡啶对种植玉米的沙壤土一氧化二氮和一氧化氮排放的影响
DOI：
10.1007/s00374-018-1289-2
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发表时间：
2018-05
影响因子：
6.5
通讯作者：
Ding Weixin
中科院分区：
文献类型：
--
作者：
Niu Yuhui;Luo Jiafa;Liu Deyan;Mueller Christoph;Zaman Mohammad;Lindsey Stuart;Ding Weixin
通过田间试验研究了生物炭和硝化抑制剂三氯甲基吡啶（nitrapyrin）单独或联合施用对桑迪玉米田N2 O和NO排放的影响。该研究包括9个处理：在前一年以0、3、6和12 t ha− 1生物炭改良的土壤中单独添加尿素或与三氯甲基吡啶结合，以及不添加氮肥的对照。N2 O和NO通量的峰值出现在施肥和强降雨事件之后，且施用基肥之后NO通量的峰值远高于N2 O通量的峰值。NO/N_2O的平均排放比值为1.11 ~ 1.72，表明N_2O主要来源于硝化作用。施氮处理的累积N2 O和NO排放量分别为1.00 kg N2 O-N ha− 1和1.39 kg NO-N ha− 1，生物炭处理分别降至0.81-0.85 kg N2 O-N ha− 1和1.31-1.35 kg NO-N ha− 1，但各处理间差异不显著。施用三氯甲基吡啶处理的NO排放量显著低于单施氮肥处理（P< 0.05），但对N2 O排放量无影响。无论是生物炭还是三氯甲基吡啶修正案影响玉米产量或氮吸收。总体而言，我们的研究结果表明，前一年的生物炭改良对第二年的N2 O和NO排放影响不大，而三氯甲基吡啶降低了NO，但没有N2 O的排放，这可能是由于低土壤含水量引起的反硝化抑制。
A field experiment was conducted to evaluate the combined or individual effects of biochar and nitrapyrin (a nitrification inhibitor) on N2O and NO emissions from a sandy loam soil cropped to maize. The study included nine treatments: addition of urea alone or combined with nitrapyrin to soils that had been amended with biochar at 0, 3, 6, and 12 t ha−1in the preceding year, and a control without the addition of N fertilizer. Peaks in N2O and NO flux occurred simultaneously following fertilizer application and intense rainfall events, and the peak of NO flux was much higher than that of N2O following application of basal fertilizer. Mean emission ratios of NO/N2O ranged from 1.11 to 1.72, suggesting that N2O was primarily derived from nitrification. Cumulative N2O and NO emissions were 1.00 kg N2O-N ha−1and 1.39 kg NO-N ha−1in the N treatment, respectively, decreasing to 0.81–0.85 kg N2O-N ha−1and 1.31–1.35 kg NO-N ha−1in the biochar amended soils, respectively, while there was no significant difference among the treatments. NO emissions were significantly lower in the nitrapyrin treatments than in the N fertilization-alone treatments (P< 0.05), but there was no effect on N2O emissions. Neither biochar nor nitrapyrin amendment affected maize yield or N uptake. Overall, our results showed that biochar amendment in the preceding year had little effect on N2O and NO emissions in the following year, while the nitrapyrin decreased NO, but not N2O emissions, probably due to suppression of denitrification caused by the low soil moisture content.
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影响因子：
4.9
作者：
Major, Julie;Rondon, Marco;Lehmann, Johannes
通讯作者：
Lehmann, Johannes
影响因子：
1.6
作者：
L. Zwieten;S. Kimber;S. Morris;A. Downie;E. Berger;J. Rust;C. Scheer
通讯作者：
L. Zwieten;S. Kimber;S. Morris;A. Downie;E. Berger;J. Rust;C. Scheer
影响因子：
9.7
作者：
R. Russow;C. F. Stange;H. Neue
通讯作者：
R. Russow;C. F. Stange;H. Neue
影响因子：
1.8
作者：
Zhu Yong-chang;Qin Xiao-bo;Duan Zhi-yuan;Wang Yun-fan;Zhou Wei-ping;W. Bin;HE Jia-nan
通讯作者：
Zhu Yong-chang;Qin Xiao-bo;Duan Zhi-yuan;Wang Yun-fan;Zhou Wei-ping;W. Bin;HE Jia-nan
DOI：
10.1073/pnas.1101419108
发表时间：
2011-04-19
影响因子：
11.1
作者：
Chen, Xin-Ping;Cui, Zhen-Ling;Zhang, Fu-Suo
通讯作者：
Zhang, Fu-Suo