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 ...

Organic nitrogen is important for plant growth, but too much of it can cause a range of problems. Over-fertilization, improper composting, or runoff from nearby agricultural areas can all contribute ...

Your plants need nitrogen in order to thrive. Here are some simple ways to add it to your soil. Nitrogen is a critical element for the plants growing in your garden. They need nitrogen to help them ...

Kansas State University researchers have received a $2 million award from the National Science Foundation’s Global Centers program to develop sensors that can more accurately detect nutrients, ...

LECO's soil analysis experts discuss how carbon analysis is changing how we understand and manage our most precious resource.