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| 西藏拉萨地区不同施氮量对鸭茅产量的影响 | |
| 引用本文： | 张小甫,李锦华,田福平,余成群,黄秀霞,江 措.西藏拉萨地区不同施氮量对鸭茅产量的影响[J].西北农业学报,2011,20(7):192-195. |
| 作者姓名： | 张小甫 李锦华 田福平 余成群 黄秀霞 江 措 |
| 作者单位： | 1. 中国农业科学院兰州畜牧与兽药研究所,兰州 730050;农业部兰州黄土高原生态环境重点野外科学观测试验站,兰州730050 2. 中国农业科学院兰州畜牧与兽药研究所,兰州,730050 3. 中国科学院地理科学与资源研究所,北京,100101 4. 西藏自治区农业技术推广服务中心,拉萨,850000 5. 西藏自治区山南地区草原工作站,西藏泽当,850000 |
| 基金项目： | 国家科技支撑计划子课题“优质牧草繁育研究与示范”(2007BAD80B01-01) |
| 摘 要： | 在西藏拉萨地区进行不同施氮量(尿素)对鸭茅产量的影响研究。结果表明,鲜(干)草产量、种子产量、植株生长速度随施氮量的增加而明显提高,但当施氮达到一定量时,其产量不再提高,反而呈下降趋势。7个处理的鲜(干)草产量均显著高于对照,尿素施量160~240 kg/hm2的鲜(干)草产量保持在较高水平,施量160 kg/hm2的鲜(干)草产量最高;施尿素的鸭茅种子产量与未施者差异显著,施量160~280 kg/hm2的鸭茅种子产量较高;施量120~200 kg/hm2的鸭茅生长速度明显高于其他施肥水平;对于牧草高效生产的经济效益而言,尿素施量为160 kg/hm2的处理能够获得最大经济效益。 |
| 关 键 词： | 尿素 鸭茅 鲜(干)草产量 种子产量 |
Influence of Different Nitrogen Fertilization on Orchardgrass Yield in the Lhasa Area of Tibet |
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| ZHANG Xiaofu,LI Jinhu,TIAN Fuping,YU Chengqun,HUANG Xiuxia and JIANG Cuo.Influence of Different Nitrogen Fertilization on Orchardgrass Yield in the Lhasa Area of Tibet[J].Acta Agriculturae Boreali-occidentalis Sinica,2011,20(7):192-195. | |
| Authors: | ZHANG Xiaofu LI Jinhu TIAN Fuping YU Chengqun HUANG Xiuxia and JIANG Cuo |
| Institution: | ZHANG Xiaofu{1,2},LI Jinhua1,TIAN Fuping{1,YU Chengqun3,HUANG Xiuxia4 and JIANG Cuo5(1.Lanzhou Institute of Animal and Veterinary Pharmaceutics Sciences,Chinese Academy of Agricultural Sciences,Lanzhou 730050,China,2.The Lanzhou Scientific Observation and Experiment Field Station of Ministry of Agriculture for Ecological System in Loess Plateau Areas,3.Institute of Geographical Sciences and Natural Resources Research,Beijing 100101,4.Agr... |
| Abstract: | The impact of different urea on orchardgrass production was studied in the Lhasa area of Tibet.The results showed that the fresh yield,hay yield,seeds yield and plant growth rate among {7 urea} treatments were significant higher than the control.The fresh yields and hay yields of urea treatments(160 kg/hm2,200 kg/hm2,240 kg/hm2) were significant higher than others treatments;The yields in the treatment of urea(160 kg/hm2) was the highest;The seeds yields of urea treatments(160 kg/hm2,200 kg/hm2,240 kg/hm2) ... |
| Keywords: | Urea Orchardgrass Fresh yield Seeds yield |
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