前言近几年来,孕育工艺由一次孕育发展为多次孕育,国外还提出了“型腔孕育法”,报导这方面的文章也越来越多。我们本着毛主席关于“人类总得不断地总结经验,有所发现,有所发明,有所创造,有所前进”的教导,试验了一种新的大块孕育法①。并经我厂初步生产实践证明,效果良好,现介绍如下。与此同时,根据我们试验和生产中的体会,谈谈对其他孕育方法的不同看法。 Preface In recent years, the breeding process developed from one to several births, foreign countries also proposed a “cavity birth method”, reporting more and more articles in this area. In the teaching of Chairman Mao on the principle that “mankind should constantly sum up experience, find something, invent something, create it, and make progress”, we tested a new method of generative nurturing. And I plant initial production proved that the effect is good, are presented below. In the meantime, based on our experience with trials and production, talk about different perspectives on other methods of inoculation.