News

New study helps farmers determine crop nitrogen needs
Farmers often face tough decisions about how much nitrogen to apply to corn, especially when spring weather disrupts ...
Some scientists think nitrate level standard should be lower
The lawn watering ban is still in effect going into the holiday weekend. Central Iowa Water Works said they need to see a ...
Central Iowa water quality experts say at-home nitrate test kits are unreliable
Experts say the test strips don't usually measure the same part of the nitrate ion that Central Iowa Water Works uses to ...
MinnPost8mon
Nitrates contaminate wells across the US, but few test the water
Nitrate measurements in domestic wells in Iowa from 2002 to 2022, from the Iowa Department of Natural Resources public water-testing program. Counties targeted in Lade et al.’s 2024 review are ...
University of Delaware2mon
End-of-Season Corn Stalk Nitrate Testing to Optimize Nitrogen Management
Interpreting Corn Stalk Nitrate Test Results. The concentration of nitrate in stalks at the end of the season is a consequence of all the factors that influenced growth during the season; not just N ...
University of Delaware2mon
Nitrogen Management for Corn in Delaware: The Pre-Sidedress Nitrate Test
Calculation of Sidedress Nitrogen Recommendation Based on Results of the Pre-Sidedress Soil Nitrate Test. The need for additional N fertilization is determined based on results of the PSNT test. If ...
Des Moines Register2mon
Volunteers with Nitrate Watch test, monitor Iowa's water quality - The Des Moines Register
Citizen scientists in Iowa are monitoring nitrate levels in streams and drinking water through the Izaak Walton League's Nitrate Watch program. The data collected supplements state monitoring ...