CHICAGO ¨C For nearly two decades, Abe Sandquist has used every marketing tool he can think of to sell the back end of a cow. Poop, after all, needs to go somewhere. The Midwestern entrepreneur has worked hard to woo farmers on its benefits for their crops.
Now, facing a global shortage of commercial fertilizers made worse by Russia¡¯s invasion of Ukraine, more U.S. growers are knocking on his door. Sandquist says they¡¯re clamoring to get their hands on something Old MacDonald would swear by: old-fashioned animal manure.
¡°I wish we had more to sell,¡± said Sandquist, founder of Natural Fertilizer Services Inc., a nutrient management firm based in the U.S. state of Iowa. ¡°But there¡¯s not enough to meet the demand.¡±

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