耐寒高产饲草的西藏引种试验研究  

Study on the Introduction of Cold-tolerant and High-yielding Herbage in Tibet

作　　者：格桑曲珍 王景升[2] 曹凯丽 小普穷 王玉婷 单增罗布 Gesang quzhen;WANG Jingsheng;CAO Kaili;Xiao puqiong;WANG Yuting;Danzeng luobu(Forestry Institute of Tibet Autonomous Region,Lhasa Tibet,850000;Institute of Geographic Science and Natural Resources Research,Beijing 100101;Tibet Agriculture&Animal Husbandry University,Nyingchi Tibet,860000,China)

机构地区：[1]西藏自治区林木科学研究院,西藏拉萨850000 [2]中国科学院地理科学与资源研究所,北京100101 [3]西藏农牧学院,西藏林芝860000

出　　处：《高原农业》2022年第6期593-598,607,共7页Journal of Plateau Agriculture

基　　金：巨菌草耐寒驯化和饲用栽培技术研究及示范(XZ201901NB11);重点实验室西藏高原生物多样性保育与植被恢复实验室建设(XZ202001YD0012C)。

摘　　要：为解决西藏重要牧区耐寒高产饲草引种驯化的生产实际问题,本研究综合考虑产量、抗寒性能、育苗难易程度等方面因素,在西藏林芝、拉萨等地引种巨菌草、绿洲I号、皇竹草、象草等高产牧草并进行流程性评价,结果表明:巨菌草在温室内每年最多收割3次,鲜草产量414 kg/ha;绿洲I号在拉萨和山南等地越冬率可达74%,大田鲜草产量264 kg/ha,粗脂肪含量2.09%;巨菌草和绿洲I号温室育苗均采用一节一芽倾斜30度扦插方式成苗率较高,大田直接栽培采用种条平卧填埋的种植方式效果最佳。In order to solve this problem that agricultural and husbandry researchers have been working for many years to introduce and domesticate perennial high-yielding forage grasses,this paper introduces and evaluates grasses such as Pennisetum giganteum,Arundo donax cv.Lv zhou.No.1,Pennisetum sinese and Pennisetum purpureum in Nyingchi and Lhasa,Tibet,considering several aspects such as yield,cold resistance performance and ease of seedling raising.The results show that Pennisetum giganteum is harvested up to 3 times a year in greenhouses,producing 6.21 tons of fresh grass per mu;Arundo donax cv.Lv zhou.No.1 can overwinter up to 74%in Lhasa and Shannan,producing 3.96 tons of fresh grass with a crude fat content of 2.09%in the field;both of them have a higher seedling rate by using one node and one shoot cuttings at an inclination of 30 degrees,while the best results are achieved by direct cultivation in the field with seed strips lying in the ground.

关 键 词：饲草 高产 耐寒性 引种 

分 类 号：S543.9[农业科学—作物学]