Construction managers, also called general contractors or project managers, typically do the following: 1  Prepare and negotiate cost estimates, budgets, and work timetables. 2  Select appropriate construction methods and strategies. 3  Interpret and explain contracts and technical information to workers and other professionals.
Denitrification is the process that converts nitrate to nitrogen gas, thus removing bioavailable nitrogen and returning it to the atmosphere. Dinitrogen gas (N2) is the ultimate end product of denitrification, but other intermediate gaseous forms of nitrogen exist (Figure 7).
Fertilizer burn can occur when too much fertilizer is applied, resulting in a drying out of the roots and damage or even death of the plant. All organic fertilizers, and some specially-formulated inorganic fertilizers are classified as 'slow-release' fertilizers, and therefore cannot cause nitrogen burn.