CAJ | 학술논문

　　为了明确山东谷子夏播区济谷14对留苗密度和氮肥施用量的响应情况，以济谷14为试材，采用裂区试验设计，以留苗密度为主区、氮肥施用量为副区，分析了不同留苗密度（67.5万和90.0万株/hm2）和施肥量（0、75和150 kg/hm2）对谷子产量及相关性状的影响。结果表明：施氮量对济谷14产量的影响达到了极显著水平，随着施氮量的增加，产量呈先增加后降低趋势；而留苗密度对产量影响不大。在试验期内，高密度处理的谷子干物质积累量始终＞低密度处理，且差异随着谷子的生长发育而逐渐增大；灌浆成熟期，随着施氮量的增加，干物质积累量呈先增加后降低趋势。在不同施氮量与留苗密度下，株高、茎粗、穗长、穗粗、叶面积指数和叶绿素含量均无显著性差异。综合氮肥施用量和种植密度互作试验产量结果，认为在山东谷子夏播区有利于发挥济谷14产量潜力的栽培方式为留苗密度67.5万株/hm2、孕穗期追施氮肥（纯N）75 kg/hm2。
　　위료명학산동곡자하파구제곡14대류묘밀도화담비시용량적향응정황，이제곡14위시재，채용렬구시험설계，이류묘밀도위주구、담비시용량위부구，분석료불동류묘밀도（67.5만화90.0만주/hm2）화시비량（0、75화150 kg/hm2）대곡자산량급상관성상적영향。결과표명：시담량대제곡14산량적영향체도료겁현저수평，수착시담량적증가，산량정선증가후강저추세；이류묘밀도대산량영향불대。재시험기내，고밀도처리적곡자간물질적루량시종＞저밀도처리，차차이수착곡자적생장발육이축점증대；관장성숙기，수착시담량적증가，간물질적루량정선증가후강저추세。재불동시담량여류묘밀도하，주고、경조、수장、수조、협면적지수화협록소함량균무현저성차이。종합담비시용량화충식밀도호작시험산량결과，인위재산동곡자하파구유리우발휘제곡14산량잠력적재배방식위류묘밀도67.5만주/hm2、잉수기추시담비（순N）75 kg/hm2。
In order to study the effects of density and nitrogen on yield and related traits of Jigu 14, a split-plot design with plant density as main plot and N level as sub-plot was adopted, the effects of N level (0, 75 and 150 kg/hm2) and plant density (67.5 ×104 and 90.0 ×104 plants/hm2) on yield and related traits of millet was analyzed.The results showed that there were significant differences on the yield of Jigu 14 with various N levels, and the yield of Jigu 14 was increased and then decreased with the increasing of N levels.No significant differences on yields were found with the increasing of plant density.During the test period, the dry matter accumulation of high density treatment was always greater than the low density treatment.The dry matter accumulation of Jigu 14 was increased and then decreased with the increasing of N levels at grain filling stage.There were no significant differences in plant height, diameter of stem, panicle length, panicle diameter, leaf area index and chlorophyll content dynamics with the changes of N level and plant density under current study.When the density was 67.5 × 104 plants/hm2, 75 kg/hm2 of nitrogen was applied in booting stage, the yield potential was the largest in Shandong summer sowing area.