A circle of life-and nitrogen-is playing out in farms across the United States. And researchers are trying to get the timing right. The goal is to time nutrient release from cover crops to better ...

“You see pictures on TV of water in every shade but clear,” Richard Amper, executive director of the Long Island Pine Barrens Society, a conservation group, told Circle of Blue. Clear water is what ...

A circle of life-and nitrogen-is playing out in farms across the United States. And researchers are trying to get the timing right. Some cover crops, such as hairy vetch or cereal rye, are not grown ...