播种量·行距对扁穗雀麦梨园培育的影响研究  

Study on the Effect of Seeding Rate and Row Spacing on Pear Orchard Cultivation of Flat Bromegrass

作　　者：张建波 李向林[2] 万里强[2] 陈瑞祥 

机构地区：[1]贵州省草业研究所,贵州独山558200 [2]中国农业科学院北京畜牧兽医研究所,北京100094

出　　处：《安徽农业科学》2010年第24期13132-13134,共3页Journal of Anhui Agricultural Sciences

基　　金：科技部"十一五"科技支撑课题"南方草地高效生产系统技术集成与产业化示范研究"(2006BAD16B07);贵州省创新能力建设项目"黔科合院所创能[2009]4013"

摘　　要：[目的]探讨扁穗雀麦在梨园培育的较优模式。[方法]通过不同播种量、不同行距的试验设计,对不同处理的扁穗雀麦产草量、分蘖数和株高的显著性进行了分析。[结果]产草量方面,高播种量的处理>中播种量的处理>低播种量的处理,而在同一播种量水平上,行距小的产草量高;分蘖方面,数量在种植前期都比较少,差异不大,到种植中期,低播种量的处理分蘖数比中等播种量和高播种量的处理多,到后期,低播种量的处理有一定优势,但整体趋于一致;株高方面,处理在不同测定时间表现出来的差异规律性不明显,而所有处理在整个测定时间过程中都表现出"高—低—高—低"的变化趋势。[结论]总体来看,播种量高和行距小的处理有利于扁穗雀麦产草量的提高。[Objective]The research aimed to study on the superior pear orchard cultivation mode of flat bromegrass. [Method] The significance analysis of grass yield,tiller number and plant height of flat bromegrass was made by different seeding rate and row spacing.[Result] From the aspect of grass yield,the high seeding rate treatment got the highest yield,the moderate seeding rate got the secondary yield,and the lowest treatment got the least yield. At the same seeding rate level,the row spacing was inversely proportional to the grass yield. The tiller number had little difference at the early stage of planting,but at the middle stage,the tiller number of the low seeding rate was more than the high seeding rate and moderate seeding rate. At the last stage,though the low seeding rate predominated in the tiller number,three treatments tended to the same. From the aspect of plant height,the regular diversity of all treatment at different determination time was not obvious. The tendency of all determination period was from high to low,then from high to low again. [Conclusion] In general,the high seeding rate and little row spacing were beneficial to the improvement of grass yield of flat bromegrass.

关 键 词：扁穗雀麦 播种量 行距 

分 类 号：S512.19[农业科学—作物学]