Care for trees By Michael Allen A


eration and fertilization is a process that can be done by property owners to open up


the root zone of trees to air, water and nutrients – all three are essential ingre- dients for life in that order. So many people have the wrong idea about tree fertilization. They may toss some granular fertilizer around the base of the tree – no matter how large the tree is. This may be the way you can fertil-


20 • Early Spring 2015


ize vegetables in your garden or grass, but not trees. How do you know if your tree needs


fertilizing? How much fertilizer do you need? What kind of fertilizer are you going to use? First you need to know what fertilizer is. It is a source of essential nutrients that when properly administered in the appropriate quan- tities allows for the optimal growth of the plant.


So often I hear from people who


say fertilizing is not necessary because trees grow naturally in soil and are able to obtain what nutrients they need on their own. Unfortunately, this view is mostly wrong. Most of our planted trees that occur in cities, towns, rural communities and farms did not natu- rally grow there. Cultivated variet- ies of trees produced by commercial tree nurseries are appearing in greater


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