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| 陇东紫花苜蓿地上生物量及水分利用率分析 | |
| 引用本文： | 张谋草,赵满来,王宁珍,杨民,黄斌,郭海英,王位泰. 陇东紫花苜蓿地上生物量及水分利用率分析[J]. 草业科学, 2006, 23(1): 55-58 |
| 作者姓名： | 张谋草 赵满来 王宁珍 杨民 黄斌 郭海英 王位泰 |
| 作者单位： | 中国气象局兰州干旱研究所,甘肃,兰州,730020;甘肃省西峰农业气象试验站,甘肃,西峰745000;陇东学院计算机科学系,甘肃,西峰745000;甘肃省西峰农业气象试验站,甘肃,西峰745000;甘肃省庆阳市气象局,甘肃,西峰,745000 |
| 基金项目： | 兰州区域气象中心开放实验室项目“农牧区草业生态观测试验及气候对草业生产影响评估方法研究” |
| 摘 要： | 分析紫花苜蓿Medicago sativa地上生物量的变化表明:鲜、干质量曲线的增长特点是返青(萌芽)至现蕾后增长快,进入开花期后增长缓慢;第1茬鲜质量和干质量占全年总鲜质量和干质量的比例最大,高度与鲜质量和干质量的增长成正相关;在不同茬的生长期内,气象要素对其贡献不同,水分利用率以第2茬最高。 |
| 关 键 词： | 紫花苜蓿 鲜质量 干质量 水分利用 |
| 文章编号： | 1001-0629（2006）01-0055-04 |
| 收稿时间： | 2005-05-25 |
| 修稿时间： | 2005-05-25 |
The analysis of alfalfa aboveground biomass and water use efficiency in Longdong |
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| ZHANG Mou-cao,ZHAO Man-lai,WANG Ning-zhen,YANG Min,HUANG Bin,GUO Hai-ying,WANG Wei-tai. The analysis of alfalfa aboveground biomass and water use efficiency in Longdong[J]. Pratacultural Science, 2006, 23(1): 55-58 | |
| Authors: | ZHANG Mou-cao ZHAO Man-lai WANG Ning-zhen YANG Min HUANG Bin GUO Hai-ying WANG Wei-tai |
| Affiliation: | 1. Lanzhou Institute of Arid-meteorology, CMA, Lanzhou 730020,China Xifeng Agricultural Meteorological Experimental Station, Xifeng 745000,China; 3. Qingyang Meteorology Bureau, Xifeng 745000,China;4. Department of Computer Science, I.ongDong College, Xifeng 745000,China |
| Abstract: | The change of alfalfa aboveground biomass showed that high growth speed was observedfromseedling to bud,and reduced after blooming.The fresh and dry weight of the first cutting ac-counted majority of the total yield.Plant height was positively correlated to the increase of yield.Weather factors contributed differently during different growth period of cuttings.While the highestwater use efficiency was observed at the second cutting. |
| Keywords: | alfalfa fresh weight dry weight water use efficiency |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |