| 种植密度与大薯留种对‘宣薯2号’产量的影响 |
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| 引用本文： | 展康,李祥能,高连彰,徐发海.种植密度与大薯留种对‘宣薯2号’产量的影响[J].中国马铃薯,2012(4):217-219. |
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| 作者姓名： | 展康 李祥能 高连彰 徐发海 |
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| 作者单位： | 1. 云南省宣威市农业技术推广中心, 云南 宣威 655400
2. 云南省宣威市东山镇农业服务中心, 云南 宣威 655408 |
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| 基金项目： | 国家现代农业马铃薯产业技术体系建设专项(zhsyz-22) |
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| 摘 要： | 以‘宣薯2号’为试验材料,探索了以大薯留种不同种植密度对其产量和结薯率的影响。结果表明:宣薯2号大薯留种以密度2.70万株/hm2为最佳,平均单产达34 654 kg/hm2,比常规种薯6万株/hm2和大薯留种2.25、3.15和3.75万株/hm2都增产增收,结薯率从适宜的种植密度2.7万株/hm2开始,随密度的增加单株结薯数变少和单株块茎重变轻,大中薯率有变化,但不成规律。‘宣薯2号’在宣威市大薯留种以密度2.7万株/hm2种植既能获得高产,又能获得较好的经济效益。
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| 关 键 词： | 马铃薯 大薯留种 种植密度 结薯率 产量 |
Effect on Yield of Large Sized Seed Tuber Planted at Various Densities for the Variety Xuanshu 2 |
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| ZHAN Kang,LI Xiangneng,GAO Lianzhang,XU Fahai.Effect on Yield of Large Sized Seed Tuber Planted at Various Densities for the Variety Xuanshu 2[J].Chinese Potato,2012(4):217-219. |
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| Authors: | ZHAN Kang LI Xiangneng GAO Lianzhang XU Fahai |
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| Institution: | 1(1.Xuanwei Agricultural Technique Extension Center,Xuanwei,Yunnan 655400,China; 2.Dongshang Agricultural Service Center,Xuanwei,Yunnan 655408,China) |
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| Abstract: | Effect on yield and tuber set per hill of large sized seed tuber planted at various densities was studies using the variety Xuanshu 2 as plant materials.Large sized seed tuber of 'Xuanshu 2' planted at 27 000 hill/ha gave the best yield,34 654 kg/ha,higher in both yield and economic return than those of 22 500 hill/ha,31 500 hill/ha,37 500 hill/ha and traditional sized seed potato planted at 60 000 hill/ha.Tuber set and tuber yield per hill decreased as density increased from 27 000 hill/ha,however no clear pattern was found for marketable tuber percentage.Therefore,for the variety 'Xuanshu 2' 27 000 hill/ha should be planted when large sized seed tuber was used in Xuanwei,at which high tube yield and benefit could be achieved. |
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| Keywords: | potato large sized tuber seed density tuber set yield |
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