碱茅草产量构成因素分析及动态变化初探  

A STUDY OF HAY YIRLD COMPONENTS AND DYNAMICS OF PUCCINELLIA CHINAMPOENSIS OHWI

作　　者：柴来智 郇庚年 张和平[1] 戴德荣 张普金[3] 

机构地区：[1]张掖地区草原工作站,734000 [2]张掖市畜牧兽医站 [3]甘肃农业大学草原系,兰州730070

出　　处：《草业科学》1991年第4期27-29,共3页Pratacultural Science

摘　　要：本文主要研究了甘肃张掖硫酸盐土壤生长1～3年碱茅草的株高、分蘖数、产量的年度间变化。并依此建立了株高和分蘖数对产量构成的预测模型,为硫酸盐土壤地区建立人工碱茅草地提供了参考依据。The parer has mainly been dealt with factor analysis by variations between years on culm heights, number of tillerings and yields of Puccinellia chinampoensis Ohwi when Plantion for one to three years from 1985 to 1987 in sulphate soils of Zhangye district, Gansu, And in accordance with this calculation statistically, a prediction modelling was constitured with regard to such parameters as culm height and number of tillering versus yield, thus providing referential basis for establishing the Puccinellia cultivative grassland of sulphate soils.

关 键 词：碱茅草 产量 构成因素 动态变化 

分 类 号：S543.901[农业科学—作物学]