There, he worked on plant uptake of ions, especially iron, nitrogen fixation and calcicolous plants.

Soil moisture may be lost to the surface or atmosphere directly, or through plant uptake - this is called evapotranspiration.

Inoculation with native AM fungi increased plant uptake of phosphorus, improving plant growth and health.

He predicted that the entry of metals into the food chain through plant uptake might cause health hazards and also environmental problems in 1999.

Environment Canada reported the amount of nitrogen and phosphorus available for plant uptake has increased dramatically in the past several decades.

The poor adsorption capacity of the quartz gravel implied that plant uptake and subsequent harvesting were the major phosphorus removal mechanism.

This led to a decrease in plant uptake of CO2 in 2003, but what followed was not entirely expected.

The ISNT is a new (2007) method for measuring nitrogen available for plant uptake.

Lower levels of nitrogen loss during fall were found when it was warmer (more plant uptake) and dryer (less loss due to leaching).

Photoperiod (the length of daylight) affects overall plant uptake.