苜蓿与禾草不同混播模式研究
Study on Different Mixed Sowing Patterns of Alfalfa and Grass
辛忠民 1金晓明 1杨立霞 1于志远 1巴德日胡 1刘福芳 1李雪颖 1贾楠 1乔鹏伟 1田芳 1姚宪涛1
作者信息
- 1. 呼伦贝尔学院,内蒙古呼伦贝尔 021008
- 折叠
摘要
研究苜蓿与一年生或多年生禾草在不同牧草组合、播种比例、种植方式下牧草干草量、土地当量比、种间竞争力、相对生物量等指标.结果表明,建植当年牧草播种量影响不同种类牧草的产量.在苜蓿、燕麦混播模式下,40％苜蓿+60％燕麦组合表现较优,干草重247 g/m2,土地当量比LER为1.1,土地综合效益较高.同行混播25％苜蓿+75％禾草组合表现较优,干草重为951或758 g/m2,土地当量比LER为1.2或1.3,土地综合效益较高.异行混播苜蓿与禾草行比9:3组合表现较优,干草重为964或877 g/m2,且牧草间生长竞争较弱,有利于维持人工草地的持久性.
Abstract
The forage hay yield, land equivalent ratio, inter-specific competitiveness and relative biomass of alfalfa and annual or perennial grass under different forage combinations, seeding ratio and planting methods were studied.The results showed that the seeding amount of herbage in the year of planting affected the yield of different kinds of herbage.In the mixed sowing mode of alfalfa and oat, the combination of 40％ alfalfa + 60％ oat performed better, the hay weight was 247 g/m2, the land equivalent ratio LER was 1.1, and the land comprehensive benefit was higher.The combination of 25％ alfalfa + 75％ grass was better than that of other mixed sowing in the same line, the hay weight was 951 g/m2 or 758 g/m2, the land equivalent ratio LER was 1.2 or 1.3, and the land comprehensive benefit was higher.The performance of the combination with alfalfa and grass with the row ratio of 9:3 was better among different mixed sowing combinations in different rows, and the hay weight was 964 g/m2 or 877 g/m2, respectively.And the growth competition among different kinds of grasses was weaker, which was conducive to the persistence of artificial grassland.
关键词
苜蓿/禾草/混播Key words
Alfalfa/Grass/Mixed sowing引用本文复制引用
基金项目
内蒙古自治区应用技术研究与开发资金项目(2021GG0325)
出版年
2024
国家科技期刊平台
NSTL
万方数据