本文发表在1985年第37期的 Niigate 大学农学系会刊上(第61～67页)把多年生黑麦草和苇状羊茅的无性株单播或混播在沙土盆中,氮、磷、钾施量有三个不同的比例。把一个直径为3毫米的筛孔网埋在这两个种之间,通过计算穿过筛孔网的根系数量来评定地下部分的竞争。种植后六个星期即观察竞争效果。结果表明,地上 This article, published in the journal Agricultural Sciences, Niigate University (37), 1985, pp. 61-67, unigels or mixes perennial ryegrass and reed fescue in sand pots with nitrogen, phosphorus and potassium There are three different scales. A 3 mm diameter mesh of meshes was buried between the two species and the competition of the subsurface was assessed by counting the number of roots traversing the mesh. Six weeks after planting, the effect of competition is observed. The results show that on the ground