The global nitrogen cycle in the twenty-first century - PMC

1 The nitrogen cycle can increase the rate of primary production Nitrogen is considered one of the limiting factors in primary production Atmospheric

Nitrogen cycle Atmospheric nitrogen cannot be used directly by plants and animals Nitrogen

cell cycle Nitrogen changes forms throughout the process and from the atmosphere to the soil to organisms and back again There are five stages of the nitrogen cycle

carbon cycle The nitrogen cycle The nitrogen cycle is a crucial process that converts atmospheric