要想做到农业“现代化”,就必须不断地换用更好的品种。因此,引进我们所需要的优良品种资源,就是必不可少的措施之一。我们植物检疫工作应该很好地为此而服务:既要让优良的种质资源进来,又要不让危险性的病虫进来。大家都应该认识到。引用优良品种是对“四化”有益的, To achieve “modernization” of agriculture, we must constantly switch to better varieties. Therefore, it is an indispensable measure to introduce the fine variety resources that we need. Our phytosanitary work should be very good for this purpose: both to allow good germplasm resources come in, but also do not let dangerous pests come in. Everyone should realize. Citing good varieties is beneficial to the “four modernizations”