LI Jie,LIU Shan-jiang,CHEN Yi-shan,et al.Improvement Effect of Different Proportion of Organic Nitrogen and Inorganic Nitrogen on Salinity Soil[J].Northern Horticulture,2014,38(08):160-164.
有机氮无机氮不同配比对盐渍化土壤的改良效果
- Title:
- Improvement Effect of Different Proportion of Organic Nitrogen and Inorganic Nitrogen on Salinity Soil
- 文章编号:
- 1001-0009（2014）08-0160-05
- Keywords:
- organic nitrogen; inorganic nitrogen; ratio; salinity soil; improvement
- 分类号:
- S 156.4+9
- 文献标志码:
- A
- 摘要:
- 通过大田试验，研究了冬小麦夏玉米轮作模式下4种有机氮无机氮配比对盐渍化土壤改良效果的影响。结果表明：有机氮投入比例越高，对土壤全盐含量的降低效果越好；盐渍化土壤单施化学肥料会加重盐害；有机氮投入会在短期降低耕层土壤pH 0.11~0.19，有机氮投入可降低耕层土壤Na+、Cl-含量；以有机氮∶无机氮=2∶1对盐渍化土壤的改良效果最佳。
- Abstract:
- A field experiment was carried out to study the improvement effect of four different proportions of organic nitrogen and inorganic nitrogen on salinity soil in the winter wheat and summer maize rotating system.The results showed that the higher of organic nitrogen proportion was，the better of the effect on reducing the soil total salt content was.Only chemical fertilizer would aggravate salt injury.The organic nitrogen application decreased soil pH from 0.11 to 0.19 in a short time and reduced the Na+ and Cl- contents in the tilth soil.The best ratio of organic nitrogen to inorganic nitrogen was two to one.
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备注/Memo
第一作者简介：李洁(1988-)，男，山东青岛人，硕士研究生，研究方向为土壤肥料与环境质量检测与评价。E-mail:15652108820@163.com.