Application. Spruce trees develop root systems that extend well beyond their canopy, and you'll want to provide fertilizer over the entire root zone. Apply fertilizer around the tree in a diameter one and a half times the diameter of the canopy.ime Frame. Trees absorb nutrients from the soil with their water, so you'll want to provide fertilizer at a time when trees are actively absorbing water. The Montana State University Extension Service recommends fertilizing spruce trees during spring, after the ground thaws and water begins moving again in the soil.
A plant operator is a person who supervises the operation of an industrial plant. The term is usually applied to power plants or chemical plants such as gas extraction, petrochemical or oil refinery or other chemical processes. There may be a control room in the plant where the operator works. These are known as board operators. Generally, operators are assigned to a particular unit, on which they are responsible for a certain function or area of equipment. Operators are also responsible for overseeing work is being done in a safe manner.
(May 2015) The Mobile Telephone Switching Office (MTSO) is the mobile equivalent to a PSTN Central Office. The MTSO contains the switching equipment or Mobile Switching Center (MSC) for routing mobile phone calls. It also contains the equipment for controlling the cell sites that are connected to the MSC.