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| 氮肥对垂穗披碱草种子产量和质量的影响 | |
| 引用本文： | 乔安海,韩建国,巩爱岐,李伟,王贇文,秦歌菊,郭树栋,吴精明,赵殿智.氮肥对垂穗披碱草种子产量和质量的影响[J].草地学报,2006,14(1):48-51,56. |
| 作者姓名： | 乔安海 韩建国 巩爱岐 李伟 王贇文 秦歌菊 郭树栋 吴精明 赵殿智 |
| 作者单位： | 1. 中国农业大学草地研究所,北京,100094;青海省草原总站,西宁,810008 2. 中国农业大学草地研究所,北京,100094 3. 青海省草原总站,西宁,810008 4. 青海省三角城种羊场,刚察,812300 |
| 基金项目： | 引进国际先进农业科技计划(948计划) |
| 摘 要： | 2001-2002年研究氮肥对垂穗披碱草(Elymus nutans)种子产量和质量的影响.结果表明:施氮量以120kg/hm2(秋60 春60)的效果最好,种子产量达1856 kg/hm2;施氮肥可提高生殖枝数、小花数/小穗、可育小花数/小穗和种子千粒重,但对小穗数/生殖枝影响不显著;施氮肥能提高早期成熟种子的发芽率、芽长、芽重及酸性磷酸脂酶的活性. |
| 关 键 词： | 施肥 垂穗披碱草 种子产量 种子质量 |
| 文章编号： | 1007-0435（2006）01-0048-05 |
| 收稿时间： | 2005-11-08 |
| 修稿时间： | 2005-11-082006-01-16 |
Effect of Nitrogen Fertilizer Application on Elymus Nutans Seed Quality and Yield in Qinghai-Tibet Plateau |
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| QIAO An-hai,HAN Jian-guo,GONG Ai-qi,LI Wei,WANG Yun-wen,QIN Ge-ju,GUO Shu-dong,WU Jing-ming,ZHAO Dian-zhi.Effect of Nitrogen Fertilizer Application on Elymus Nutans Seed Quality and Yield in Qinghai-Tibet Plateau[J].Acta Agrestia Sinica,2006,14(1):48-51,56. | |
| Authors: | QIAO An-hai HAN Jian-guo GONG Ai-qi LI Wei WANG Yun-wen QIN Ge-ju GUO Shu-dong WU Jing-ming ZHAO Dian-zhi |
| Institution: | 1. Institute of Grassland Science, China Agriculture University, Beijing 100094, China; 2. Qinghai Provincial Grassland Post, Xining, Qinghai Province 810008, China; 3. Qinghai Sanjiaocheng Stud Farm, Gangcha, Qinghai Province 812300, China |
| Abstract: | Field experiments were conducted in Sanjiaocheng Stud Farm in two years(2001-2002),to test the effects of nitrogen fertilizer application on Elymus nutans seed yield and seed quality.Results show that the yield reached the highest rate of 1856 kg/hm~2 with 120 kg/hm~2 N application(Autumn 60 Spring 60).The fertilizer significantly raises the seed yield components,including fertile tillers/m~2,florets per spikelet,fertile florets per spikelet,and thousand-seed weight,though it does not influence spikelets per fertile tiller.The fertilizer also raises the early-mature seed germination rate,seedling length and weight,as well as the acid phosphoesterase activity. |
| Keywords: | Fertilizer application Elymus nutans Seed yield Seed quality |
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