黄土丘陵区优良牧草引种驯化试验研究

本文系１９９２—１９９５年在黄土丘陵区的安塞县进行的牧草引种驯化试验研究结果。通过该试验研究，以期选择出适于黄土丘陵区建设人工高产草地和改良天然放牧草地的优良牧草。共引进国内外牧草２００余份材料，分属４科．２６属、４４种。通过４年试验研究，初步筛选出２０余种优良草种（含品种）。这些牧草高产、优质、抗性强、易繁殖。文中对影响引种效果的因素进行了分析。试验研究结果表明，引种效果除与各草种生物生态学特性有关，其立地条件、经营管理，特别是水肥管理，都影响着牧草的生长发育。如一些牧草在川台地或缓坡生长良好，而在较陡的坡地则生长不良。

STUDY ON INTRODUCTION AND ACCLIMATIZATION OF FINE HERBAGEIN THE LOESS HILLY REGION

This paper is a result of introduced herbage at Ansai station in the Loess Hilly region from 1992 to 1995. The aim of experiment is selecting fine herbage for establishinghigh-yield artificial pasture on slopeland and improving natural rangeland. More No.200 of matter which belong to 4 families,26 genus,44 species were introduced from internal and external.Through experiment for four years,more 20 of fine species or varieties were selected and they had high production, good quality, stronger resistibility andeasy reproduction. The experiment results indicate that introduction and acclimatizationeffect is related to bio-ecological characters,besides site conductoin,management,cially water and fertilizer management, which affect growth and development ofherbages. Such as some herbages can grow well on plain or gentle slope,but grow notgood on sharp slopeland