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| 灌溉量对土壤水分和苜蓿生长的影响 | |
| 引用本文： | 赵静,师尚礼,齐广平,霍平慧,高怀阳. 灌溉量对土壤水分和苜蓿生长的影响[J]. 山西农业科学, 2010, 38(7): 48-52. DOI: 10.3969/j.issn.1002-2481.2010.07.12 |
| 作者姓名： | 赵静 师尚礼 齐广平 霍平慧 高怀阳 |
| 作者单位： | 1. 甘肃农业大学草业学院,甘肃,兰州,730070;草业生态系统教育部重点实验室,甘肃,兰州,730070 2. 草业生态系统教育部重点实验室,甘肃,兰州,730070;中美草地畜牧业可持续发展研究中心,甘肃,兰州 730070 3. 草业生态系统教育部重点实验室,甘肃,兰州,730070 4. 甘肃农业大学草业学院,甘肃,兰州,730070 |
| 基金项目： | 国家科技部重点项目，农业部行业专项 |
| 摘 要： | 进行了不同灌溉量对土壤水分和紫花苜蓿生长的影响研究,结果表明,(1)随季节降雨和灌溉量的影响,表层土壤水分含量波动较深层剧烈,1988.67m3/hm2灌溉量处理的土壤含水量能满足植物的正常生长,也不会导致水资源的浪费;(2)2485.84m3/hm2灌溉量处理的植株生长最高,达126.82cm,1491.50m3/hm2灌溉量处理的植株生长高度最低,为104.38cm,1988.67m3/hm2灌溉量处理的植株叶量丰富,茎叶比最小;(3)盛花期刈割时,1988.67m3/hm2灌溉量处理的鲜草产量最高,比2485.84m3/hm2灌溉量处理增产1.21%,比1491.50m3/hm2灌溉量处理增产24.48%。因此,1988.67m3/hm2的灌溉量可使苜蓿叶量丰富、产草量高,并可节约水分,充分利用水资源。 |
| 关 键 词： | 灌溉量 土壤含水量 苜蓿 生长 |
Effects of Irrigation Volume on Soil Moisture and Alfalfa Growth |
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| ZHAO Jing,SHI Shang-li,QI Guang-ping,HUO Ping-hui,GAO Huai-yang. Effects of Irrigation Volume on Soil Moisture and Alfalfa Growth[J]. Journal of Shanxi Agricultural Sciences, 2010, 38(7): 48-52. DOI: 10.3969/j.issn.1002-2481.2010.07.12 | |
| Authors: | ZHAO Jing SHI Shang-li QI Guang-ping HUO Ping-hui GAO Huai-yang |
| Affiliation: | 1.College of Pratacultural Science,Gansu Agricultural University,Lanzhou 730070,China;2.Grassland Ecosystem,Key Laboratory of Ministry of Education,Lanzhou 730070,China;3.Sino-US Centers for Grassland and Livestock Sustainable Development,Lanzhou 730070,China) |
| Abstract: | The effects of various irrigation volume on alfalfa growth were studied and the result indicated that：（1）moisture content of surface soil fluctuated severer than in deep soil as influenced by seasonal rainfalls and irrigations.The irrigation treatment of 1 988.67 m3/hm2 best satisfied the normal growth of alfalfa plant,and no water resources were found wasted.（2） irrigations had influence on plant height and leaf-stem ratio,the highest group was 2 485.84 m3/hm2 treatment of 126.82 cm,while the shortest group was 1 491.50 m3/hm2 treatment of 104.38 cm.In 1 988.67 m3/hm2 treatment abundant leaves and leaf-stem ratios was the lowest.（3）when alfalfa was cutted at full flowering stage,1 988.67 m3/hm2 treatment had the highest fresh grass yield,which was higher than 2 485.84 m3/hm2 treatment by 1.21%,and higher than 1 491.50 m3/hm2 treatment by 24.48%.Therefore,the irrigation treatment of 1 988.67 m3/hm2 contributed well on abundant alfalfa plant leaves,high grass yield as well as water saving and full use of water resources. |
| Keywords: | Irrigation volume Soil moisture content Alfalfa Growth |
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