Jeevamrutha
Jeevamrutha is a natural liquid fertilizer. It is made by mixing water, dung and urine from cows with some mud from the same area as the manure will be applied in later. Food is then added to speed the growth of microbes: jaggery or flour can be used.
Jeevamrutha has been used by Indian farmers for centuries, falling out of use for some time before being revived in the 2000s.