Nutrition and Fertilization
Tree Nutrient Reqiuirements:
In addition, to acquiring carbon, oxygen and nitrogen, trees must extract from the soil thirteen nutrients in order to survive -- six macronutrients and seven micronutrients:
Macronutrients
- Nitrogen
- Phosphorus
- Potassium
- Magnesium
- Sulphur
- Calcium
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Micronutrients
- Iron
- Manganese
- Zinc
- Molybdenum
- Copper
- Chlorine
- Boron
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| These are the thirteen elements
that every tree needs. It must have all of them. There are no substitutes. A
tree deficient in any one element will not be healthy and will die well
before its time. |
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Tree Docotor Fertilizing:
- Complete fertilizer - all 13 needed soil elements
- Deep-root injection - aerates soil thus providing superior access to oxygen
for roots; also deposits fertilizer below turfgrass roots so that tree gets
all of it
- Organic - attracts micro-organisms, improves soil as well
- Suspension - not readily soluble in water - will not leach into ground
water - will not wash away
- Variable & slow release - makes nutrients available on a continuous basis
for 12 months
- Low salt - will not "burn" roots
- Usually applied in early spring or early fall
- Mixed at our shop to provide optimum combination of elements for season, plant species and plant needs
Benefits of Fertilizing
- Alleviate compact soil
- Increase tree tolerance to drought
- Enhance plant resistance to insect and disease attacks
- Reduce wind and storm damage (by thickening cell walls)
- Produce more dense leaf canopy
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