The aurora borealis lit up the night sky in Michigan on Monday and Tuesday, according to the NOAA's Space Weather Prediction Center. Here's a look at what people shared online: The northern lights are ...

Without sufficient nitrogen, the plants suffer from a lack of chlorophyll, which causes the leaves to lose their ...

Manures and other organic residuals (e.g., biosolids, food processing wastes) and many commercial fertilizers available to producers contain nitrogen (N). Nitrogen is an important plant nutrient that ...