由于盲目的滥引、乱推,给品种管理工作带来一定的难度。本文想就造成品种“多、乱、杂”的原因、危害和对策进行探讨。一、原因一是盲目的滥引、乱推。有的地方,不顾自然条件和生态环境,不了解其品种的特征、特性和适应范围,没有遵循“试验、示范、推广”的原则,就盲目从外地引进新品种进行推广,结果适得其反,得不偿失,受到了自然的惩罚。如50年代我省出现的“青森5号”事件就是一个典型的例证。 Due to blind abuse, chaos push, to breed management has brought some difficulty. This article would like to discuss the causes, harms and countermeasures of the varieties “chaos, chaos and miscellaneous”. First, the reason is blind abuse, chaos push. In some places, ignoring natural conditions and ecological environment, they do not understand the characteristics, characteristics and scope of their breeds. Without following the principle of “experimenting, demonstrating and promoting”, they blindly introduced new breeds from other places for promotion. The results were counterproductive, Not worth the candle, subject to natural punishment. Such as the province appeared in the 1950s “Aomori 5 ” incident is a typical example.