种植密度与施肥量对白城地区苦荞农艺性状及产量的影响  

Effects of Planting Density and Fertilizer Quantity on Agronomic Characters and Yield of Tartary Buckwheat in Baicheng District

作　　者：李春花 加央多拉 王春龙[1] 田娟[1] 孙墨可 董玉迪 郭来春[1] 魏黎明[1] 程微娜 李玉明 尹桂芳[3] 任长忠[1] LI Chunhua;JIA Yangduola;WANG Chunlong;TIAN Juan;SUN Moke;DONG Yudi;GUO Laichun;WEI Liming;CHENG Weina;LI Yuming;YIN Guifang;REN Changzhong(Baicheng Academy of Agricultural Sciences,Baicheng,Jilin 137000,China;Agricultural Technology Extension Station,Tianqiaoling Town,Wangqing County,Wangqing,Jilin 133204,China;Biotechnology and Germplasm Resources Institute,Yunnan Academy of Agricultural Sciences/Yunnan Provincial Key Lab of Agricultural Biotechnology/Key Lab of Southwestern Crop Gene Resources and Germplasm Innovation,Ministr^^of Agriculture,Kunming,Yunnan 650205,China)

机构地区：[1]白城市农业科学院,吉林白城137000 [2]汪清县天桥岭镇农业技术推广站,吉林汪清133204 [3]云南省农业科学院生物技术与种质资源研究所/云南省农业生物技术重点实验室/农业部西南作物基因资源与种质创制重点实验室,昆明650205

出　　处：《作物研究》2021年第4期336-342,共7页Crop Research

基　　金：国家现代农业产业技术体系项目(CARS-07);国家自然科学基金项目(31860412)。

摘　　要：为探究白城地区苦荞生产的最佳种植密度和施肥量,采用种植密度(4个处理)和施肥量(5个处理)2个因素的随机区组试验,分析不同种植密度和施肥量对苦荞农艺性状及产量的影响。结果表明:株高和茎粗随施肥量的增加而增加,主茎节数和分枝数在不同施肥量间没有显著性差异,株粒数、单株产量和千粒质量在各种植密度条件下随施肥量的增大先增后减。株高随种植密度的增加而增加,茎粗、株粒数和单株产量随种植密度的增加而减少,而种植密度对主茎节数、分枝数和千粒质量的影响不明显。种植密度为75万株/hm^(2) 时产量随施肥量的增加而增加,而种植密度为100万、125万、150万株/hm^(2) 时苦荞产量随施肥量的增加先增后降。复合肥施用量为0和100 kg/hm^(2) 时苦荞产量随种植密度的增加而增加,而施用量为200、300和400 kg/hm^(2) 时苦荞产量随着种植密度的增加先增后降。综合分析,白城地区苦荞最适种植密度为100万株/hm^(2) ,复合肥最佳施用量为300 kg/hm^(2) 。In order to explore the optimal planting density and fertilizer quantity for tartary buckwheat production in Baicheng,a randomized block design with two factors of planting density(4 treatments)and fertilizer quantity(5 treatments)was conducted to study the effects of different planting densities and fertilizer quantity on the agronomic characte-ristics and yield of tartary buckwheat.The results showed that the plant height and stem diameter increased as the increase of fertilizer amout.The number of main stalk section and branche had no significant difference under different fertilizer amout treatments.The number of plant seeds per plant,seed weight per plant and thousand kernel weight increased at first and then decreased with the increase of fertilizer amout under different density treatments.The plant height increased as the stem diameter,the number of seeds per plant and the seed weight per plant decreased with the increase of planting density.Planting density had no obvious effect on the number of the main stalk section,the number of branches and thousand kernel weight.When the planting density was 75×10^(4) plants·hm-2,the yield increased with the increase of fertilizing quantity,and when the planting density was 100×10^(4),125×10^(4),150×10^(4) plants·hm-2,the yield of tartary buckwheat increased at first and then decreased as the increase of fertilizer amout.The yield of tartary buckwheat increased with the increase of planting density when the fertilizer amout was 0 and 100 kg/hm^(2),while the yield of tartary buckwheat increased at first and then decreased with the increase of planting density when the fertilizer amout was 200 kg/hm^(2),300 kg/hm^(2) and 400 kg/hm^(2).It was concluded that the optimal planting density was 100×10^(4) plants·hm-2,and the optimal fertilizer amout was 300 kg/hm^(2) for tartary buckwheat production in Baicheng area.

关 键 词：苦荞 种植密度 施肥量 农艺性状 产量 

分 类 号：S517.04[农业科学—作物学]