A Des Moines utility has filed lawsuits, proposed legislation and even tried public shaming in an effort to clean up drinking water that comes from rivers teeming with agricultural pollutants.
so Des Moines Water Works is trying a less combative approach — inviting farmers to learn the latest techniques for reducing pollution at riverfront plots of corn and soybeans in the sprawling park where the utility filters the city’s drinking water.
Des Moines Water Works has complained for years that nitrates and phosphorous from farm fertilizers pour off fields, leaving rivers so polluted that the utility fearscan't purify the water. The utility’s efforts to hold some upstream counties legally liable for the pollution have failed, and Republicans who control the legislature and governor’s office have repeatedly rejected regulation, instead supporting voluntary programs too limited to result in real improvements.
Landus plans to bring in about 500 farmers through the summer to examine the plots and learn how they can confidently scale back their use of fertilizer, with more advanced monitoring and by planting cover crops that grow alongside the main crop and naturally infuse the soil with nitrate. Jeff Frank, a corn and soybean farmer from northwest Iowa who attended a presentation on the new effort last week, said farmers used to be encouraged to apply more fertilizer than needed to ensure they had enough.
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