Text after space character cut off in input text field

I am using MVC5 razor syntax. When I pass a string with a value containing space, the text after space cut off in the value section of input text field.

 

My view code is given below:

 

@{

ViewBag.Title = "Edit";

Layout = "~/Views/Shared/_Layout.cshtml";

string s1 ="sabab zulfiker";

}

 

When I load the page , I get only "sabab" in text box. But not get "sabab zulfiker".

What should I do now ?