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Assessment of Ammonia Volatilization Losses and Nitrogen Utilization during the Rice Growing Season in Alkaline Salt-Affected Soils
Y. Y. Li, L. H. Huang, H. Zhang, M. M. Wang and Z. W. Liang; 黄立华,梁正伟
2017
发表期刊Sustainability
卷号9期号:1
摘要The objectives of this study were to evaluate the effects of different fertilizer types and application rates on ammonia volatilization loss and to explore nitrogen distribution and nitrogen use efficiency using the N-15 isotope tracing technique in different alkaline salt-affected conditions in the Songnen Plain, Northeast China. The results showed a decreasing trend in ammonia volatilization loss from ammonium nitrate and ammonium sulfate, but not that from urea, as the electrical conductivity gradient increased, whereas the reverse trend was found as the pH gradient increased. Ammonia volatilization loss increased in moderately salt-affected soil compared with that in slightly salt-affected soil, particularly during the tillering stage, regardless of the N fertilizer rate. The percentage of N absorbed by rice plants increased from urea but decreased from the soil as the amount of nitrogen was increased. Interestingly, the N retention rate in soil decreased and rice grain yield and nitrogen agronomic efficiency increased as the amount of nitrogen increased in both salt-affected soil conditions. The nitrogen application amount of highest N physiological efficiency was 225 kg.N/ha. Considering high rice production and a minimal environmental threat, we should fully consider controlling ammonia volatilization losses by adjusting the fertilizer type and the crop stage when the fertilizer is applied.
DOI10.3390/Su9010132
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.iga.ac.cn/handle/131322/7603
专题湿地与全球变化学科组
通讯作者黄立华,梁正伟
推荐引用方式
GB/T 7714
Y. Y. Li, L. H. Huang, H. Zhang, M. M. Wang and Z. W. Liang,黄立华,梁正伟. Assessment of Ammonia Volatilization Losses and Nitrogen Utilization during the Rice Growing Season in Alkaline Salt-Affected Soils[J]. Sustainability,2017,9(1).
APA Y. Y. Li, L. H. Huang, H. Zhang, M. M. Wang and Z. W. Liang,&黄立华,梁正伟.(2017).Assessment of Ammonia Volatilization Losses and Nitrogen Utilization during the Rice Growing Season in Alkaline Salt-Affected Soils.Sustainability,9(1).
MLA Y. Y. Li, L. H. Huang, H. Zhang, M. M. Wang and Z. W. Liang,et al."Assessment of Ammonia Volatilization Losses and Nitrogen Utilization during the Rice Growing Season in Alkaline Salt-Affected Soils".Sustainability 9.1(2017).
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