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The feeding of trees has long been standardized by the tree-service profession, of whose annual income it provides a large part. Their techniques will be described, adapted to home practice. But Professor Stout takes exception to some "expert" practices, and his thinking will also be explained. Perhaps the best way lies somewhere between. Most experts believe that broadcasting fertilizer to trees, except to the shallow-rooted evergreens, is a waste of time and money, a fine way to grow grass, weeds, shrubs, and unwanted tree seedlings. By thickening the turf, surface fertilizing also tends to lessen the tree roots' water and air supply, it is said. The usual professional method of tree-feeding is to thrust food down to where the roots run, or even lower to attract roots downward and improve their grip on the ground. |
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