Was Solomon interested in studying the Scriptures? 1 Kings 4:29-34 (NIV)
  
  God gave Solomon wisdom and very great insight, and a breadth of
  understanding as measureless as the sand on the seashore. Solomon’s
  wisdom was greater than the wisdom of all the people of the East, and
  greater than all the wisdom of Egypt. He was wiser than anyone else,
  including Ethan the Ezrahite—wiser than Heman, Kalkol and Darda, the
  sons of Mahol. And his fame spread to all the surrounding nations. He
  spoke three thousand proverbs and his songs numbered a thousand and
  five. He spoke about plant life, from the cedar of Lebanon to the
  hyssop that grows out of walls. He also spoke about animals and birds,
  reptiles and fish. From all nations people came to listen to Solomon’s
  wisdom, sent by all the kings of the world, who had heard of his
  wisdom.


Solomon was great indeed. Here I can at least see 4 different subjects where he is interested in; Literature, Poetry, Botany, Zoology . Great. But what about Theology! This makes me wonder, was Solomon interested in reading the Torah? The five books of Moses were already there and there are many interesting things in there. It might be possible that he revered the Torah so much that he never thought of studying it? There were also other books like Samuel, Judges, Ruth and others. He met with the God of Israel at least two times and God gave him wisdom and wealth, but still his wives could turn his heart after other gods.

Was Solomon interested in knowing God? Was he interested in studying the scriptures at all?
Proverbs 1:1
The proverbs of Solomon the son of David, king of Israel;
Proverbs 4:20-23
My son, attend to my words;
incline thine ear unto my sayings.
Let them not depart from thine eyes;
keep them in the midst of thine heart.
For they are life unto those that find them,
and health to all their flesh.
Keep thy heart with all diligence;
for out of it are the issues of life.
Proverbs 21:2-4
Every way of a man is right in his own eyes:
but the LORD pondereth the hearts.
To do justice and judgment
is more acceptable to the LORD than sacrifice.
An high look, and a proud heart,
and the plowing of the wicked, is sin.

Yes Solomon wrote the book a Proverbs which magnifies God's wisdom in the seemingly small and yet altogether important things.