Ecological Implications of Human Alterations to the Nitrogen Cycle Many human activities have ... can leach out of the soil, enter streams and rivers, and ultimately make its way into our drinking ...

The Nitrogen Cycle Let’s begin our discussion of the N cycle in a typical grain crop rotation (corn, wheat, double-crop beans) by considering the plant residue left on the field surface after harvest.

In most gardens, nitrogen is nearly always the nutrient plants need. By virtue of the nitrogen cycle, microbes in the soil can decompose organic nitrogen from organic matter and crop residues and ...

Over a typical two-year rotation of corn and soybeans, 40% of nitrous oxide emissions are in the fertilizer-free soybean year ...

Modelling soil carbon and nitrogen cycles during land use change ... Terrestrial sedimentation and the carbon cycle: Coupling weathering and erosion to carbon burial. Global Biogeochemical ...

Nitrogen gas makes up 78% of Earth’s atmosphere ... which moves the mineral from an area of low concentration in the soil to an area of high concentration, against a concentration gradient ...

Azotobacter is one of the soil organisms capable of fixing nitrogren. Nitrogen fixers are important in the nitrogen cycle and help convert atmospheric nitrogen into an organic form that is then usable ...