应用灰色分析选择坡耕地水土保持牧草草种的研究

Applying Gray System to the Selection of Grass Species of Soil and Water Conservation

应用灰色系统中的关联分析法对9种牧草的总盖度、草层高度、根系入土深度、青绿期、越冬率、抗病性、分蘖数、根长、根数、根重、茎叶干重、适口性等12项主要性状进行了综合评估,并讨论了灰色分析法在选择坡耕地水土保持牧草草种综合评估中的应用。结果表明,在参试的9个品种中,以翠碧高羊茅的综合性状最佳,第二为迈洛克高羊茅,第三为雷得昆红三叶,草地早熟禾的优异和新哥来德最差,其它品种居中。

Applying the relevant analysis approach of gray system,the authors analyze and assess the average of 9 pasture species on the 12 indexes ,including the total covering rate ,the hight of grass ,green period ,reviving period, resisting disease, tiller,length and amount of root, weight of root, weight of leaf and stem,tasty impression,and study the application of gray analysis in the comprehensive assessment. The results showed that Tall rescue Traple is the best,Tall rescues Melike is the second,Red clove Redquin is the third,Award of Kentucky bluegrass the worst and the others in the middle in introduced 9 species,according to soil and water conservation and forage grass.