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当前位置: 首页 > 文章 > 黄土高原半干旱区狼尾草属牧草品比试验 草原与草坪 2014 (3) 42-45+50
Position: Home > Articles > Comparison of Pennisetum cultivars in the semiarid area of Loess Plateau Grassland and Turf 2014 (3) 42-45+50

黄土高原半干旱区狼尾草属牧草品比试验

作  者：
张怀山;赵桂琴;代立兰;杨世柱;王平
单  位：
甘肃省兰州市农业科技研究推广中心;甘肃农业大学;中国农业科学院兰州畜牧与兽药研究所/农业部兰州黄土高原生态环境重点野外科学观测试验站
关键词：
黄土高原半干旱区;中型狼尾草;草产量;品比试验
摘  要：
以驯化筛选的中型狼尾草野生栽培新品系和本地产中亚狼尾草为材料,在兰州大洼山进行了为期3年的栽培品比试验。结果表明,在相同的栽培和田间管理条件下,中型狼尾草各物候期比中亚狼尾草推迟4~13d,生育期比中亚狼尾草长8d,而且其营养生长期较长。中型狼尾草的株高、分蘖数、穗长、粗蛋白、钙和磷含量显著(P<0.05)高于中亚狼尾草,叶量丰富,茎叶比极显著(P<0.01)低于中亚狼尾草21.9%,而且粗纤维含量低。中型狼尾草鲜草产量达4.79×104 kg/hm2,比对照中亚狼尾草增产59.1%;干草产量为1.60×104 kg/hm2,比对照增产58.4%。综合评比显示,中型狼尾草是值得在黄土高原半干旱区推广种植利用的高产优质禾本科饲草品种(系)。
译  名：
Comparison of Pennisetum cultivars in the semiarid area of Loess Plateau
作  者：
ZHANG Huai-shan;ZHAO Gui-qin;DAI Li-lan;YANG Shi-zhu;WANG Ping;College of Pratacultural Science,Gansu Agricultural University/Key Laboratory of Grassland Ecosystem,Ministry of Education;Lanzhou Institute of Husbandry and Pharmaceutical Sciences of CAAS;of Agricultural Technology Extension and Research Center of Lanzhou City;
关键词：
semiarid area of Loess Plateau;;Pennisetum longissimum var.intermedium;;hay yield;;cultivar comparison test
摘  要：
The cultivar comparison test was conducted by using Pennisetum longissimum var.intermedium No.1 and P.centrasiaticum.The result indicated that 4 to 13 days delay of phenological periods was found for P.longissimumvar.intermedium No.1 compared with P.centrasiaticum under the same conditions and field management.The growth period of P.longissimumvar.intermedium No.1and P.centrasiaticum was 120 and 112 day respectively,and P.longissimum var.intermedium No.1 was found with longer vegetative period.Height,tiller numbers,panicle length,contents of crude protein,calcium and phosphorus of P.longissimumvar.intermedium No.1 were significantly higher than P.centrasiaticum,crude fiber contents in contrast,and stem/leaf ratio was significantly lower than P.centrasiaticumby 21.9%.The grazing rate of livestock on the stem and leaf of fresh grass was above 90%.Fresh yield and hay yield of P.longissimumvar.intermedium No.1 was 4.79×104kg/ha and 1.60×104kg/ha respectively,which were 59.1% and 58.4% higher than P.centrasiaticum.

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