期刊文献+

葡萄缺锌症状及防治方法 被引量:2

下载PDF
导出
摘要 锌是植物正常生长发育所必需的微量元素之一.它是一些酶的组成成分,与生长素的合成和核糖核酸的合成、细胞的分裂和光合作用有密切关系.它能促进叶绿素的形成,参与碳水化合物的转化.能提高植物的抗病性、抗寒性和耐盐性.
作者 武运霞
出处 《河北果树》 2014年第2期46-46,共1页 Hebei Fruits
  • 相关文献

参考文献9

  • 1Ferraiolo D,Cugini J,Kuhn R.Role-Based Access Control:Features and Motivations.Proceedings of 11th Annual Computer Security Application Conference.New Orleans:IEEE Computer Society Press,1995.241-48.
  • 2Ferraiolo D,Kuhn R.Role-Based Access Controls.Proceedings of 15th NIST-NCSC National Computer Security Conference.Baltimore:IEEE Computer Society Press,1992.554-563.
  • 3Cuiri L G.A New Model for Role-Based Access Control.Proceedings of 11th Annual Computer Security Application Conference.New Orleans:IEEE Computer Society Press,1995.249-255.
  • 4Sandhu R,Coyne E,Feinstein H L,et al.Role-Based Access Control Models.LosAlamito:IEEE Computer Society Press,1996,29(2):38-47.
  • 5Ferraiolo D,Sandhu R,Gavrila S,et al.Proposed NIST Standard for Role-Based Access Control.ACM Transactions on Information and Systems Security (TISSEC),2001,4(3):43-57.
  • 6Park J,Sandhu R,Ahn G J.Role-Based Access Control on the Web.ACM Transactions on Information and Systems Security (TISSEC),2001,4(1):1-12.
  • 7Cuiri L G,Iglio P.A Formal Model for Role-Based Access Control with Constraints.Proceedings of 9th IEEE Computer Security Foundations Workshop.Ireland Kenmare,June 1996.136-145.
  • 8Nyanchama M,Osborn S.Access Rights Administration in Role-Based Security Systems.Database Security VIII:Status and Prospects.North-Holland,Amsterdam,December 1995.30-41.
  • 9Solms S H,Merwe I.The Management of Computer Security Profiles Using a Role-Oriented Approach.ACM Transactions on Information and System Security (TISSEC),1996,4(1):37-71.

同被引文献12

引证文献2

二级引证文献4

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部