| 施氮对高羊茅种子产量组分和产量的影响 |
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| 引用本文： | 陈志宏,韩建国,陈会敏,白春霞,秦歌菊,毛培胜.施氮对高羊茅种子产量组分和产量的影响[J].草地学报,2005,13(3):215-218. |
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| 作者姓名： | 陈志宏 韩建国 陈会敏 白春霞 秦歌菊 毛培胜 |
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| 作者单位： | 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 |
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| 基金项目： | 引进国际先进农业科技计划(948计划)
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高等学校博士学科点专项科研项目 |
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| 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。
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| 关 键 词： | 高羊茅 施氮 种子产量组分 种子产量 |
| 文章编号： | 1007-0435（2005）03-0215-04 |
| 收稿时间： | 2004-03-26 |
| 修稿时间： | 2004-12-27 |
Effect of Fertilization-N on Tall Fescue Seed Yield and Yield Components of Seed Crop |
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| CHEN Zhi-hong,HAN Jian-guo,CHEN hui-min,BAI Chun-xia,QIN Ge-ju,MAO Pei-sheng.Effect of Fertilization-N on Tall Fescue Seed Yield and Yield Components of Seed Crop[J].Acta Agrestia Sinica,2005,13(3):215-218. |
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| Authors: | CHEN Zhi-hong HAN Jian-guo CHEN hui-min BAI Chun-xia QIN Ge-ju MAO Pei-sheng |
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| Institution: | Institute of Grassland Science, China Agricultural University, Key Lab of Restoration and Reconstruct of Grassland Vegetation of Ministry of Agriculture, Beijing 100094, China |
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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. |
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| Keywords: | Festuca arundinacea Fertilization-N Yield components of seed crop Seed yield |
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