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中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (9): 94-98.doi: 10.11924/j.issn.1000-6850.2012-3253

• 农学 农业基础科学 • 上一篇    下一篇

高羊茅草坪上不同缓控释氮肥土壤硝态氮残留与淋失研究

方瑞元 马友华 邹国元 徐凯 张东雷 张玉铎 张琳 王甲辰 谷佳林   

  • 收稿日期:2012-09-26 修回日期:2012-11-13 出版日期:2013-03-25 发布日期:2013-03-25
  • 基金资助:
    公益性行业(农业)科研专项“黄淮海面源污染监测与氮磷化肥投入阈值研究”(20100314)；北京市科委北京市缓控释肥料工程技术研究中心2011年阶梯计划项目“科技研发机构创新能力提升”(Z111105055311092)；北京市科委包膜肥料规模化生产技术提升与完善项目“包膜肥料规模化生产技术提升与完善”(D0706004040591)；北京市科委科技人员服务企业项目“园林废弃物养分缓释型育苗基质的研发”(2009GJA00026)；北京市农林科学院部市工程中心建设“低成本脲醛基有机无机复合基质研发”(20120406)。

Effects of Soil Nitrate Nitrogen Residues and Leaching for Different Kinds of Slow-release Nitrogen Fertilizers in Tall-fescue Soil

  • Received:2012-09-26 Revised:2012-11-13 Online:2013-03-25 Published:2013-03-25

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摘要： 为了研究不同种类缓控释氮肥在高羊茅草坪土壤中硝态氮的运移，通过渗滤池和小区相结合的方法，研究筛选适合高羊茅草坪的环境友好的新型肥料。结果表面：不同种类的缓控释氮肥处理比尿素处理均能减少土壤硝态氮含量和淋溶量。而且在0~90 cm土层中，PCU60处理比PCU30和IU处理减少硝态氮含量及降低淋溶效果更明显。综上所述，缓控释氮肥可有效降低硝态氮在土壤中的含量及淋失，是一种环境效益突出、应用前景广泛的新型肥料。

关键词: 饲用品质, 饲用品质

Abstract: Percolation basin and field experiment were conducted to study on the effects of soil nitrate migration of different kinds of slow-release fertilizers in tall-fescue lawns soil and select more environment-friendly new fertilizer. Results showed that, compared with urea treatment, slow-release nitrogen fertilizer treatments could reduce nitrate nitrogen content and leaching solution. Compared with PCU30 and IU treatments, the PCU60 treatment became more efficient to reduce nitrate content and leaching amount in 0-90 cm soil layer. In summary, slow-release nitrogen fertilizer, which could reduce soil nitrate content and leaching losses, was a kind of novel fertilizer with high environmental benefit and promising application.