According to which practice, do the senators from the state in which the judicial vacancy occurs actually make the decision for recommending district judges?

The senators from the state in which the judicial vacancy occurs make the decision for recommending district judges according to the practice of nomination.

Explanation:

The United States Constitution gives Senators and the members of the House of Representatives the right to nominate candidates that they find fit for the post of district judges in their own states. Once the nomination is accepted, the appointment of these judges is done for a lifetime.The confirmation to the nomination proposed is given by the federal judiciary and the Judicial Conference of the United States.

It gets more wisdom and they know more knowledge

Sometimes but itt depends, their is a lot if drugs on campus too so you really can't just say that