Homemade fertilizer

I make organic fertilizer at home.

Ingredients:
leafe soil
rice bran
smoked/coaled? rice husk
rapeseed meal
water

When you mix all the above in a tub-like container and cover it with old blankets or plastic, the temperature rises to about 50 degrees C, or 122 degrees F in a few days and stays at about 30-40C for about 10days. It smells. When the color turns dark brown or black and the smell clears, it's ready to use. You need to keep turning it untill then.

I am putting a tray that I sew seeds in, the other day on the tub to help germination. I'm a little nervous if the seeds would come out.