Quick soil test aims to determine nitrogen need

Healthy soil contributes to healthy crops. Farmers know this, so they do what they can to ensure their soil is in good shape. They send samples of their soil for lab testing to find out if it is low in any important nutrients. ...

Reining in soil's nitrogen chemistry

Take a trip down into the soil beneath a field of crops. You won't find just dirt, water, and creepy-crawlies. You'll also find reactions that remind you of high school chemistry lab.

Utah soil's slippery grip on nutrients

Lawns in the Salt Lake Valley up to 100 years old are not yet saturated in the nutrient nitrogen, which is added by fertilizer, according to a new study from University of Utah researchers. The result is surprising, since ...

Ancient agricultural activity caused lasting environmental changes

Agricultural activity by humans more than 2,000 years ago had a more significant and lasting impact on the environment than previously thought. The finding— discovered by a team of international researchers led by the University ...

Radish cover crop traps nitrogen; mystery follows

When you think of a radish, you may think of the small, round, crunchy, red-and-white vegetable that is sliced into salads. You might be surprised to learn that a larger, longer form of this root vegetable is being used in ...

Study sheds light on how plants get their nitrogen fix

Legumes are a widely consumed family of plants that serve as a significant source of dietary protein, fiber, and other essential nutrients. They obtain nitrogen through a specialized process known as nodulation, a symbiotic ...

How the speed of foliage decomposition influences carbon levels

In one of the few such studies, scientists examined how dead leaves, roots, and other plant litter decay over a decade. The team used stable isotope labels to trace plant litter-derived carbon and nitrogen as the litter decomposed ...

The conversation between plants and soil

To a child, soil is just dirt – a home for worms. To a gardener, soil is a collection of organic matter and nutrients. But to plants, soil is a hotbed of chemical activity. And plants don't just observe, they actively participate ...

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