Acta Agrestia Sinica

›› 2005, Vol. 13 ›› Issue (3): 215-218.DOI: 10.11733/j.issn.1007-0435.2005.03.009

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Effect of Fertilization-N on Tall Fescue Seed Yield and Yield Components of Seed Crop

CHEN Zhi-hong, HAN Jian-guo, CHEN hui-min, BAI Chun-xia, QIN Ge-ju, MAO Pei-sheng   

  1. Institute of Grassland Science, China Agricultural University, Key Lab of Restoration and Reconstruct of Grassland Vegetation of Ministry of Agriculture, Beijing 100094, China
  • Received:2004-03-26 Revised:2004-12-27 Online:2005-08-15 Published:2005-08-15

施氮对高羊茅种子产量组分和产量的影响

陈志宏, 韩建国, 陈会敏, 白春霞, 秦歌菊, 毛培胜   

  1. 中国农业大学草地研究所, 农业部草地植被恢复与重建重点开放试验室, 北京, 100094
  • 通讯作者: 韩建国,E-mail:grassland@publi3.bta.net.cn
  • 作者简介:陈志宏(1974- ),女,中国农业大学草地研究所硕士毕业,现在全国畜牧兽医总站畜禽牧草种质资源保存利用中心工作,主要从事牧草种质资源保护及遗传多样性研究工作
  • 基金资助:
    农业部948项目202099;高等学校博士点专项基金资助课题(200000196)内容

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Abstract: Effect of fertilization-N on tall fescue seed yield and yield components of seed crop were studied in the Beijing area during 2000～2002. The results showed that fertile tiller/m2 achieved the maximum quantity when 150 kg/hm2 N in 2001 and 120 kg/hm2 N in 2002 were applied. However, further increasing of N fertilizer decreased the number of tall fescue fertile tiller per square meter. Maximum seed yields of 1864 kg/hm2 and 1954 kg/hm2 were garnered when 150 kg/hm2 N(Autumn75 kg/hm2+Spring75 kg/hm2)was applied in 2001 and 2002 respectively.

Key words: Festuca arundinacea, Fertilization-N, Yield components of seed crop, Seed yield

摘要： 2000年9月~2002年7月在北京地区研究施氮对高羊茅(Festuca arundinacea)种子产量组分和产量的影响。结果表明,随着施氮量的增加,生殖枝数/2增加,施氮150 kg/hm2(2001)和120 kg/h2(2002)生殖枝数/2达到最高,施氮量继续增加,生殖枝数/2反而下降;2001和2002年种子产量都随着施氮量的增加而增加,其中以施氮150kg/h2(秋季75kg/h2+春季75kg/h2)种子产量最高,分别为1864 kg/h2和1954 kg/h2。

关键词: 高羊茅, 施氮, 种子产量组分, 种子产量

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