Computer models reveal how human-driven climate change will dramatically overhaul critical nutrient cycles in the ocean. Researchers report evidence that marine nutrient cycles -- essential for ...

The economy moves in a cycle with four basic stages: expansion (sustained growth), peak (slowing growth), contraction or recession (economic decline), and trough (the turning point before recovery ...

Crops often receive beneficial nutrients such as phosphorus (P) from manure or commercial fertilizer applications. However, the Delaware Nutrient Management Law (3 Del. C. § 2247) limits the amount of ...

Manures, 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 is often ...