控释氮肥不同施用位置对春玉米产量及氮素吸收利用的影响
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S513

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吉林省农业科技创新工程项目(CXGC2017ZY012、CXGC2018ZY013);农业农村部植物营养与肥料学科群开放基金项目(KLPNF-2018-1)


Effects of Different Application Location of Release-Controlled Nitrogen Fertilizer on Yield, Nitrogen Absorption and Utilization of Spring Maize
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    摘要:

    通过田间试验,系统研究了控释氮肥不同施用位置对春玉米产量、养分利用及土壤速效养分的影响。结果表明,与农民习惯施肥(FP)相比,控释氮肥种下8~10 cm(T1)施用可以显著地提高春玉米的产量,增产幅度为5.3%,氮肥农学利用率、氮肥偏生产力和氮肥利用率分别提高了14.6%、3.7%和16.3%,显著增加了耕层土壤速效养分的含量。因此,控释氮肥在春玉米生产中最佳施用位置为种下8~10 cm,对指导控释氮肥在一次性施肥技术上的应用具有重要的意义。

    Abstract:

    The field experiment was conducted to study the effects of different application location of release-controlled nitrogen fertilizer on yield, nutrient absorption and utilization and soil nutrient of spring maize. The result showed that maize yield of release-controlled nitrogen fertilizer application 8-10 cm under seed treatment(T1) was significantly increased by 5.3% than farmer’s practice treatment(FP), and nitrogen agronomic utilization efficiency,nitrogen partial factor productivity and nitrogen utilization efficiency of T1 treatment were increased by 14.6%,3.7% and 16.3% than FP treatment, respectively. Release-controlled nitrogen fertilizer application improved the available nutrient contents in surface soil significantly. Therefore, the optimum location of release-controlled nitrogen fertilizer application was 8-10 cm under seed in spring maize production. This is of significance to guide the application of release-controlled nitrogen fertilizer in the technique of single basal fertilizer application.

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孔丽丽,李前,侯云鹏,秦裕波,王蒙,于雷,刘春光,王立春,尹彩侠.控释氮肥不同施用位置对春玉米产量及氮素吸收利用的影响[J].东北农业科学,2019,44(4):25-28.

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  • 收稿日期:2018-12-11
  • 在线发布日期: 2024-12-04
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