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中国农学通报 ›› 2012, Vol. 28 ›› Issue (18): 117-121.doi: 10.11924/j.issn.1000-6850.2011-3546

所属专题: 玉米

• 农学 农业基础科学 • 上一篇    下一篇

玉米专用肥配方设计与效果验证

孙义祥 袁嫚嫚 郭熙盛   

  • 收稿日期:2011-11-28 修回日期:2012-02-04 出版日期:2012-06-25 发布日期:2012-06-25
  • 基金资助:

    公益性行业(农业)科研专项“农作物最佳养分管理技术研究与应用”

Design and Evaluation for Maize Special Compound Fertilizer

  • Received:2011-11-28 Revised:2012-02-04 Online:2012-06-25 Published:2012-06-25

摘要:

为了探索依据测土配方施肥项目成果而推荐施肥的技术途径,采用“大配方,小调整”策略,根据区域总量控制、分期调控技术,磷钾肥恒量监控技术原理,设计安徽省玉米专用肥配方为17-13-15,于2011年通过田间小区试验对安徽省玉米配方肥的效果进行验证。结果表明,施用配方肥(大配方处理)比农户习惯减小玉米第一节间长9.6%,降低穗位高8.1%,从而减小了玉米倒伏的风险;根据田块测土值推荐施肥(小调整处理)的平均产量是所有处理产量最高的,达到了8471 kg/hm2,大配方处理的平均产量(8244 kg/hm2),与小调整处理的平均产量差异不显著,但比农户习惯施肥的平均产量(7906 kg/hm2)提高338 kg/hm2。施用配方肥比农户习惯的氮肥偏生产力提高55%,显著提高了资源利用效率。

关键词: 流动人员, 流动人员, 人事档案

Abstract:

To explore the technical approach of fertilizer recommendations which based on the datum of soil testing and fertilizer project, we concluded the main fertilizer prescriptions should be designed for ecological zones, and small adjustment could be done for farmer’s fields. We designed spring maize fertilizer prescription as 17-13-15 and fertilization recommendation in Anhui Province using regional soil nutrient supply and crop nutrient demand by nutrient management technologies, and evaluated this fertilizer in 9 field experiment sites in 2011. Compared with the farmers practice, yield using designed fertilizer (17-13-15) increased 4.3% from 7906 kg/hm2 to 8244 kg/hm2, while increasing nitrogen partial factor productivity of 55% from 25.8 kg/kg to 40.1 kg/kg. The risk of maize lodging reduced significantly because of the treatment of using designed fertilizer (17-13-15) reducing the length between the first quarter 9.6% and lower the ear height 8.1%.

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