AMES, Iowa – The soil fertility tests farmers have used for decades to measure nitrogen levels don’t account for the vast majority of the nitrogen in soils, so Iowa State University scientists helped ...

Add Yahoo as a preferred source to see more of our stories on Google. Organic nitrogen is important for plant growth, but too much of it can cause a range of problems. Over-fertilization, improper ...

Nitrogen is often the most limiting nutrient in growing plants. When deficient, plant yields and quality are reduced. However, excessive nitrogen applications could cause concerns in water quality and ...

It’s never too early to prepare for a strong growing season. You don’t have to wait until spring to test your soil quality. Fall soil fertility testing to determine residual nutrients and soil ...

High input prices means farmers will want to be especially judicious about the amount of nitrogen fertilizer they apply on their corn crops this spring. One way that farmers who have regularly used ...

Nitrogen levels in 2022, a year that had both wet and dry weather, were more typical, in contrast to 2021, when it was extremely dry, an Agvise Laboratories Inc. staff member says. John Breker, soil ...

Ahigh percentage of the Farm Journal Test Plots revolve around one key nutrient—nitrogen. “Time and time again, we see that nitrogen is king—it makes the biggest difference,” explains Farm Journal ...

The end-of-season corn stalk nitrate test (CSNT) is a simple, inexpensive tool that can be used to assess the nitrogen (N) status of a corn crop at the end of the growing season. Data from studies ...