【摘要】 [目的]研究不同施肥方式对夏玉米农艺性状及产量的影响,以期为进一步提高玉米产量和肥料利用效率提供技术支持。[方法]于山东省德州市黄河涯村设置肥料施于地表(TT)、单侧单层施肥深度10 cm(UST10)、单侧单层施肥深度18 cm(UST18)、单侧2层施肥深度10 cm+18 cm(UTT10/18)、单侧3层施肥深度10 cm+18 cm+25 cm(UTT10/18/25)、农民常规种植(CK) 6个施肥处理,研究大田条件下不同施肥方式对夏玉米农艺性状及产量的影响。[结果]在各施肥处理中,UTT10/18施肥处理的株高、叶面积、干物质重等指标在玉米生长发育的前期与其他处理之间无显著差异,但在玉米生长发育后期UTT10/18施肥处理长势旺,株高、叶面积、干物质重等指标显著优于其他处理; UTT10/18施肥处理的产量分别较TT、UST10、UST18、UTT10/18/25、CK施肥处理提高18.6%、10.2%、6.5%、13. 6%、9.6%。[结论]UTT10/18(单侧2层施肥深度10 cm+18 cm)施肥处理,能够显著促进玉米植株后期生长发育,进而提高玉米产量。UTT10/18施肥方式对于提高玉米产量、保证粮食安全具有重要意义。更多还原

【Abstract】 [Objective] To study the effects of different fertilization methods on agronomic characters and yield of summer maize,in order to provide technical support for high yield of summer maize. [Method] Field experiments were conducted in Dezhou City of Shandong Province during 2017. Six treatments were conducted including topdressing( TD),unilateral single-tier 10 cm( UST10),unilateral single-tier 18 cm( UST18),unilateral two-tier 10 cm+18 cm( UTT10/18),unilateral three-tier 10 cm+18 cm+25 cm( UTT10/18/25),conventional farming method( CK). [Result] UTT10/18 treatment significantly increased plant height,leaf area,dry matter weight of summer maize. And the yield also showed that the yield of UTT10/18 treatment increased by 18.6%,10.2%,6.5%,13.6%,9.6% respectively compared with TT,UST10,UST18,UTT10/18/25,CK treatment. [Conclusion] UTT10/18 treatment could significantly increase the yield of summer maize,and this method is significant to ensure food security.更多还原