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中国农学通报 ›› 2014, Vol. 30 ›› Issue (30): 34-37.doi: 10.11924/j.issn.1000-6850.2014-0998

所属专题: 油料作物 园艺

• 农学 农业基础科学 • 上一篇    下一篇

氮肥基施深度对油菜产量和养分吸收利用的影响

鲁飘飘,武际,胡现荣,韩 上,夏伟光,郭熙盛   

  1. 安徽省农业科学院土壤肥料研究所,,,,
  • 收稿日期:2014-04-08 修回日期:2014-04-08 接受日期:2014-07-23 出版日期:2014-10-31 发布日期:2014-10-31
  • 通讯作者: 武际
  • 基金资助:
    安徽省农业科学院学科建设项目“安徽粮油作物清洁生产中施肥技术研究”(13A1003);安徽省科技厅项目“安徽养分循环与资源环境省 级实验室绩效”(1406c085025);国家“十二五”科技支撑计划重点项目“油菜高效简化施肥技术研究”(2010BAD01B05)

Effects of Nitrogen Application Depth on Yield and Nutrient Utilization of Rapeseed

  • Received:2014-04-08 Revised:2014-04-08 Accepted:2014-07-23 Online:2014-10-31 Published:2014-10-31

摘要: 为了进一步合理高效利用氮肥,采用田间试验研究方法,研究了氮肥基施深度(4、8、12、16 cm)对油菜产量、养分吸收和氮肥利用率的影响。结果表明,不同氮肥基施深度处理的油菜产量高低次序为N16>N12>N8>N4。其中处理N16产量最高,达3383 kg/hm2,与N4产量差异达到显著水平。氮肥深施促进了油菜植株对氮、磷、钾养分的吸收利用,氮肥深施处理N16的油菜氮肥吸收利用率和农学利用率均显著高于氮肥浅施处理N4、N8。本研究条件下,氮肥基施深度以16 cm效果最佳。

关键词: 产量, 产量

Abstract: In order to take full advantage of nitrogen,the field experiment was conducted to study effects of N fertilization depth (4, 8, 12, 16 cm) on rapeseed yield, nutrient uptake and utilization. The results showed that rapeseed yield decreased in the order of N16>N12>N8>N4. The highest yield of 3383 kg/hm2 was reached at the treatment N16, and it was significantly higher than that of treatment N4. The increase of N fertilization depth could promote nutrient absorption and utilization of rapeseed significantly. Nitrogen recovery efficiency and agronomic use efficiency of treatment N16 were notably higher than that of treatment N4 and N8. Under the condition of this experiment, the optimal N fertilizer application depth was 16 cm.