巨菌草在甘孜州道孚县高海拔的适应性栽培研究  

Research on adaptive cultivation of Cenchrus fungigraminus at high altitude in Daofu County,Ganzi Prefecture

作　　者：周扬 赵小勇 戚雁菡 董宇航 刘玉婷 ZHOU Yang;ZHAO Xiao-yong;QI Yan-han;DONG Yu-hang;LIU Yu-ting

机构地区：[1]四川民族学院,四川甘孜州626001 [2]四川民族学院生态与农学院,四川甘孜州626001

出　　处：《饲料研究》2024年第19期146-151,共6页Feed Research

基　　金：甘孜州科技局农业农村领域重点研发项目(项目编号:23KJJH0006);四川民族学院2023年度校级科研重点项目(项目编号:XYZB2301ZA);四川民族学院2023年度校级教育教学改革研究项目(项目编号:X-JG202324);四川民族学院生态学学科建设项目资助;2022年度国家级大学生创新创业训练计划项目(项目编号:202311661001)。

摘　　要：试验旨在研究巨菌草在甘孜州高海拔地区的适应性栽培效果。试验在甘孜州道孚县色卡乡3400 m海拔处进行巨菌草的引种试验,在试验地内划分4块10 m×10 m的小区作为样地,不同小区种植密度分别为400(D1)、300(D2)、200(D3)和100株/100 m^(2)(D4),在巨菌草种植3 w后进行第一次农艺性状的测定,并在后续试验中每15 d进行一次农艺性状的测定。结果表明,巨菌草生长期间株高、叶长随着密度增加而呈升高趋势,D1组的巨菌草株高和叶长较高,D2组的巨菌草叶宽、产量较高,D4组的巨菌草分蘖较多。研究表明,在道孚县,巨菌草引种的存活率高,适应性较好,但过密种植制约了巨菌草单株光合效率,降低了巨菌草产量,300株/100 m^(2)能够保证巨菌草在高海拔地区良好的生长和产量。The experiment aimd to investigate the adaptability of Cenchrus fungigraminus cultivation in high-altitude areas of Ganzi Prefecture.The research conducted an introduction trial of Cenchrus fungigraminus at an altitude of 3400 m in Seca Village,Daofu County,Ganzi Prefecture.Four 10 m×10 m plots were established within the experimental site as sample plots,with different planting densities of 400(D1),300(D2),200(D3),and 100 plants/100 m^(2)(D4).The first determination of agronomic traits was conducted 3 weeks after the planting of Cenchrus fungigraminus,and subsequent measurements were taken every 15 days throughout the experiment.The results showed that the plant height and leaf length of Cenchrus fungigraminus increased with increasing density.The D1 group had higher plant height and leaf length,while the D2 group had wider leaves and higher yield.The D4 group had more tillers.The study indicates that in Daofu County,the survival rate of the introduced giant fungus grass is high and it has good adaptability.Over-dense planting restricts the photosynthetic efficiency of individual Cenchrus fungigraminus plants,reducing the yield of giant fescue.A planting density of 300 plants/100 m²can ensure the good growth and yield of Cenchrus fungigraminus in high-altitude areas.

关 键 词：巨菌草 甘孜州 引种试验 种植密度 

分 类 号：S816[农业科学—饲料科学]