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.

Finally, nitrogen addition affects the two competing components of soil carbon storage — soil ... and negative feedbacks between the carbon cycle and the climate system, and therefore need ...

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

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 ...

Nitrogen is transferred between living organisms and their environment. Ammonia is converted into nitrates. This is carried out by nitrifying bacteria. Nitrifying bacteria needs oxygen as they are ...

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 ...

In crops with the improved ability of biological nitrification inhibition (BNI), BNI substances secreted from the roots inhibit the nitrification process in the soil, which improves the nitrogen ...