The site navigation utilizes arrow, enter, escape, and space bar key commands. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items. The main reason for fertilizing trees and shrubs in the landscape is to maintain reasonable vigor so that plants will be able to resist environmental stresses and pests. Trees and shrubs in a landscape may require little or no supplemental fertilization if plants are sited correctly, fallen leaves are shredded in place, nutrient-containing mulch is used or surrounding turf areas are fertilized.
Many trees in managed landscapes are able to scavenge for enough elements once they become established due to their extensive root systems See: more on root systems. They have access to naturally occurring elements as well as elements applied as fertilizer to the lawn, shrubs, and garden and may need no additional fertilizer. Some species such as hollies, crapemyrtle, maples, Chinese elms and others appear yellow and chlorotic in some circumstances unless fertilized. These and trees like them can benefit from regular fertilization, at least until established. Adding fertilizer that contains nitrogen the first number on a fertilizer label under the canopy can increase growth rate and provide greener foliage on young and medium-aged trees; this can be a reasonable objective. However, increasing growth on mature trees see photo may not be desirable.
What, When and Why: The Best Way to Fertilize Trees
Printable version. In nature, forest trees are fertilized by the nutrients recovered from leaf litter and other organic material. This natural process rarely takes place in planned landscapes, so nutrients in the soil must be replaced by regular fertilization.
By on. Deep root fertilization is a recommended procedure by many arborists. Does it work? Is it the best way to fertilize trees?