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
周扬 1赵小勇 2戚雁菡 2董宇航 2刘玉婷2
作者信息
- 1. 四川民族学院,四川甘孜州 626001;四川民族学院生态与农学院,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
- 折叠
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3 400m海拔处进行巨菌草的引种试验,在试验地内划分4块10m×10m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 m2(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 m2能够保证巨菌草在高海拔地区良好的生长和产量.
Abstract
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 3 400 m in Seca Village,Daofu County,Ganzi Prefecture.Four 10 m x 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 m2(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 m2 can 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Key words
Cenchrus fungigraminus/Ganzi Prefecture/introduction trial/planting density引用本文复制引用
基金项目
甘孜州科技局农业农村领域重点研发项目(23KJJH0006)
四川民族学院2023年度校级科研重点项目(XYZB2301ZA)
四川民族学院2023年度校级教育教学改革研究项目(X-JG202324)
四川民族学院生态学学科建设项目()
2022年度国家级大学生创新创业训练计划项目(202311661001)
出版年
2024
国家科技期刊平台
NSTL
万方数据