U.S. postdocs. Report urges better treatment, status

For years, U.S. postdocs have been complaining about paltry salaries, lack of benefits, and lowly status. This week, a committee of the National Academies of Sciences and Engineering and the Institute of Medicine validated many of their complaints and lent its considerable weight to efforts to provide greater institutional support for postdocs. At the same time, however, the panel sidestepped two burning issues by explicitly declining to recommend a boost in postdoc salaries or take a position on whether to curtail the size of the postdoc workforce, which has more than doubled in the past 20 years to an estimated 52,000.     

美国、加拿大牧草引种试验初报

对8种美国、加拿大牧草进行引种观察，结果紫花苜蓿发芽率较好(91．1％--95％)，产草量紫花苜蓿Ⅰ、Ⅱ和白三叶较高，分别为64700kg/hm^2、42100kg/hm^2和50780kg/hm^2．粗蛋白含量紫花苜蓿Ⅲ和酢浆草高速20．75％和21．24％。种植价值以紫花苜蓿、白三叶和酢浆草为好。     

赴美加农业及技术推广情况的考察报告

介绍了美国现代农业的特点和农业技术推广经验。