优质黑豆的研究与开发三年来，北京市农林科学院作物所豆类资源的预备性研究取得了重大进展。科研人员从国外引进了优质高效豆类资源、谷类资源３１７份和从国内引进各类资源４５８份，挽救了本所豆谷类资源９７２份。其中黑豆类已有一些较成熟的材料，只要投入启动资金，... Research and Development of High-quality Black Beans Three years ago, great progress has been made in the preparatory study on the legume resources of crop institutes in Beijing Academy of Agriculture and Forestry. Researchers from abroad introduced the high-quality and efficient bean resources, 317 cereal resources and various kinds of resources imported from China 458, saving 972 copies of this bean and cereal resources. Black beans have some of the more mature materials, as long as the start-up capital investment, ...