OKAY...40% of the world's potassium nitrate for fertilizer comes from Belarus and Ukraine. Now there's a war. Farmers in the USA are ALREADY using human waste in a product known as "sludge" to fertilize crops.PLEASE...everyone...this can kill you (e coli) if you don't wash your veggies and fruits very carefully. Safest yet...cook everything. Post Comment Receive notifications Add a comment...