In Michigan it's against the law to fertilize crops with human waste. Actually knew a farmer in the seventies who got caught and was fined for doing it. The r

In Michigan it's against the law to fertilize crops with human waste. Actually knew a farmer in the seventies who got caught and was fined for doing it. The reason is because it can spread disease causing pathogens to the crop. I'm not certain how the Japanese got around that. Or perhaps people got sick from it and they hadn't yet figured out the cause.