You can write all you want; but unless you take time to read, you will lose touch with things and issues that are important and relevant right now. You have to read a lot to improve writing. You will begin to notice the ways different descriptions work. You will recognize proper sentence structure, plot formation, and many of the nuances which skilled writers use to manipulate the story and get you involved. Reading evokes imagination and your own storytelling abilities. While every person who reads a lot may not be inclined to be a writer, every good writer does read a lot. Whether it is the newspaper, magazine, or trashy romance novel; reading often will keep your brain in the best writing shape.