密度、施氮量和播种期对贵农玉008号玉米产量的影响  

Effect of Density,Nitrogen Amount and Sowing Date on Yield of Guinongyu 008

作　　者：舒中兵[1] 黎礼谦[1] 段明禹 宋成孝 毕世敏[1] 彭中华[2] 

机构地区：[1]国家玉米产业技术体系遵义综合试验站 贵州省遵义市农业科学研究所,贵州遵义563102 [2]贵州大学农学院,贵州贵阳550025

出　　处：《贵州农业科学》2013年第7期53-56,共4页Guizhou Agricultural Sciences

基　　金：基金项目:国家玉米产业技术体系(CARS-02-78)

摘　　要：为了给贵农玉008号玉米新品种的推广应用提供参考,采用三因素二次回归正交旋转组合设计研究种植密度、施氮量、播种期对贵农玉008号产量的影响。结果表明:贵农玉008号产量随着种植密度和氮肥施用量的增加及播种期的延长,呈先上升后下降的抛物线趋势,三因素对产量影响的大小顺序为种植密度(x1)>施氮量(x2)>播种期(x3);种植密度在3 600株/667m2左右、施氮量在12kg/667m2左右,于4月5日前后播种有利贵农玉008号玉米产量的提高。The three-factor quadratic regression orthogonal rotation combinational design was used to study the effect of density, nitrogen amount and sowing date on yield of Guinongyu 008 for its popularization and application. The yield presented a first rise and then declining trend with increase of density and nitrogen amount, and elongation of sowing date. The effect of three factors on yield of Guinongyu 008 was density 〉 nitrogen amount〉 sowing date. The optimum cultivation technology for high yield of Guinongyu 008 includes 3600 plants/667m2 of planting density, 12 kg/667m2 of nitrogen amount and 5, April of sowing date.

关 键 词：玉米 贵农玉008 密度 施氮量 播种期 产量 

分 类 号：S513[农业科学—作物学]