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 ...

Can I Test My Soil for Nitrogen? Unlike other plant nutrients, most laboratories do not routinely test soil for N because the N cycle is very dynamic. The dynamic nature of the N cycle means that the ...

Nitrates are absorbed by active transport, moving from a low concentration in the soil to a high concentration in the plant root, against the concentration gradient. Nitrogen-fixing bacteria ...

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 ...

Since nitrous oxide is emitted into the air when there is excess nitrogen in the ground, keeping plants growing year-round ...

Observational and experimental studies to understand processes and mechanisms of nitrogen cycle. - Understanding of processes (biological, soil, hydrological, geochemical etc.) that comprise the ...

There is also no research estimating the magnitude of nitrogen replacement values and when in the growth cycle that ...