摘要
针对甘肃省临潭县高寒山区特殊的自然气候条件,于早春播种6种多年生牧草,以探讨其在高寒山区的生产性能及适应性。对其物候期、生物学特征、产量、营养及翌年越冬率观测结果表明:播种当年6种牧草均未完成其生活史,仅停留在分蘖(枝)期;甘肃红豆草、小冠花、甘农一号苜蓿和猫尾草产草量较高、适应性强、营养价值高,可在高寒山区退牧还草和人工草地中建植;垂穗披碱草适应性强,产草量较低,可作为改良退化草地草种加以利用;红三叶在高寒山区越冬率和产量都较低,在没有保护措施的情况下不建议种植。
According to the special climate in alpine area in Lintan County of Gansu Province,6 perennial forages were planted in the early spring to test the productivity and adaptability. The phonological and biological characteristics, yield, nutrients contents and the winter survival rate were observed. The result showed that 6 forages did not complete its life cycle in sowing year and stayed in the tillering period; Onobrychis viciaefolia cv. Gansu,Coronilla varia ,Medicago varia cv. Gannong No. 1 and Phleum pratense had higher yield,better adaptability and higher nutritional value;Elymus nutans had better adaptability,lower yield;the winter survival rate and yield of the Trifolium pratense were lower.
出处
《草原与草坪》
CAS
2011年第6期69-74,共6页
Grassland and Turf
基金
不同环境下的圈舍设计
关键技术配套和草畜平衡关键点评价与优化研究(CAR-40-09B)资助
关键词
物候期
产量
越冬率
营养成分
phonology
yield
winter survival rate
nutrient
