不同播期对黑龙江西部半干旱区高粱产量的影响  

Effect of Different Sowing Date on Sorghum Yield in Western Semi-arid Region of Heilongjiang Province

作　　者：王聪[1] 杨克军[2] 

机构地区：[1]黑龙江省农业科学院克山分院,黑龙江克山161606 [2]黑龙江八一农垦大学,黑龙江大庆163319

出　　处：《黑龙江农业科学》2016年第5期21-24,共4页Heilongjiang Agricultural Sciences

基　　金：国家杂粮工程资助项目(2011FU125X07);农业部公益性行业专项资助项目(201303007);校内培育课题资助项目(XZR2014-02)

摘　　要：为了探索黑龙江西部半干旱区高粱品种的最适播期,以龙杂5号为材料,采用随机区组设计,设定3个播期处理,研究其对高粱光合特性、单株干物质积累量及产量的影响。结果表明:在5月28日(土壤平均温度19.8℃、土壤湿度17.5%)播种产量较高。因此,在适宜土壤温湿度条件下播种是保证高粱出苗率,并获得高产的主要途径之一,同时也是保证高粱高产、稳产的基本条件。In order to explore the optimum sowing date of sorghum varieties in semi-arid region of western area of Heilongjiang province,taking Longza 5as material,the design of random block were setfor three sowing date to research the effects of photosynthetic characteristics,dry matter accumulation and yield of sorghum.The results showed that in May 28^th（Average soil temperature 19.8℃,soil water content 17.5%）yield was higher.Accordingly,in the seeding appropriate the temperature and humidity of soil was the guarantee of sorghum seedling emergence rate,reduce the cost and one of the main ways to obtain high yield and a postulate ensured high and stable yield of sorghum.

关 键 词：高粱 播期 产量 光合特性 单株干物质积累量 

分 类 号：S514[农业科学—作物学]