留苗密度对谷子晋谷29产量性状的影响  

Effect of Density and Plants per Hill on Yield Characters of Millet Variety Jingu 29

作　　者：杭丽 张霞 张瑞 李瑞 HANG Li;ZHANG Xia;ZHANG Rui;LI Rui(Shenmu City Agricultural Technology Promotion Center,Shenmu 719300,Shaanxi,China)

机构地区：[1]神木市农业技术推广中心,陕西神木719300

出　　处：《湖北农业科学》2018年第18期14-17,22,共5页Hubei Agricultural Sciences

摘　　要：以神木市常规栽培的地方谷子品种晋谷29为材料,设不同密度、不同留苗方式处理,对其整个生长期进行追踪观察,考究生育性状和经济性状,分析得出在陕西省神木市最优种植密度和留苗方式,旨在为谷子高产高效栽培和小型机械化播种提供理论依据。结果表明,密度及留苗方式不同对晋谷29各农艺性状及产量的影响很大,随着密度的增加,谷子株高、穗长、穗粗、穗粒重呈降低趋势,进而影响产量增加。因此,从高产栽培方面考虑,晋谷29在神木市山旱地种植,每穴留苗2株,密度达到180 000株/hm^2时产量达到最高,为5 050.25 kg/hm^2。Experiment was conducted with millet variety Jingu 29 as materials to study the effects of density and plants per hill on the reproductive traits and economic traits. The optimal planting density and plants per hill of millet in the shenmu region were analyzed to provide theoretical basis for the high yield and high efficiency cultivation,and the mechanized seeding by small machines. Results showed that different densities and plants per hill had a great impact on the agronomic characters and yield of Jingu 29. With the increase of density,the plant height,ear length,ear diameter and grain weight per ear decreased,and the yield was influenced. The highest yield of Jingu 29 was 5 050.25 kg/hm2 when the density was 180 000 plant hm2 with 2 seedlings per hill on dry land.

关 键 词：谷子 晋谷29 留苗密度 产量性状 

分 类 号：S515[农业科学—作物学]