How can I translate the particular field or content in english to german language? As I want to convert the particular field or content from drupal to german language.Is any other way to do this .Also i tried the entity translation to convert the german language But Its convert all the content in my site to german I need only convert the particular field to german language Is it possible to do this in drupal .

Any one Much appreciated.
It's very easy, you need to install the Internationalization module where you find  some sub-module to do that .
Youn need to install the Localization Update module it's very helpful .