In the early days where the world was still young, the god of creation and death, Izanami, bore a golden seed. The seed was very valuable. It shone brightly as if it was the flames of the mighty god, Amaterasu.
The husband of Izanami, Izanagi, the god of creation and life, was very greedy. Anything valuable he desired and kept it for him only. Izanami hated his greediness and was also insecure for he may steal her precious seed so she hid it and threw it down on the heavens to a field withing the mountains.
The seed grew to become a beautiful golden tree. It also later on bore a flower which inside was a man. The man named itself Tsukami Gohan. While he lived, he became a farmer, especially for rice. He also made other exotic and unknown, rare crops that have never been seen. This attracted the attention of Izanagi and asked to trade with Tsukami. However, he refused.
Izanagi lost his patience and became enraged. He attacked Tsukami Gohan, but he didn't know that he also had godly powers. In the end, Tsukami was weaker than Izanagi and lost. He was burned by Izanagi' s raging flame.
Izanami heard of what happened and went down the heavens. She told her husband she was his child. Izanagi did not respond and went back to the heavens. Izanami felt sorry for what had happened to her son. So she made one last wish. She wished to make her son' s soul live once more in the roots of plants. His duty is to help farmers to fertile and grow their crops.
Now today, Tsukami is praised by people for he helps their agricultural labor. He is believed to be the cause of why people are able to grow food. They thank him for he flourished many food for villages and civilizations. People make altars of him and offer raw rice grains.