AC-Ch. 5 Tree Nutrition & Ferilization Flashcards
Whitish or yellowish leaf discoloration caused by lack of Chlorophyll. Often caused by nutrient deficiency
Chlorosis
Fertilizer containing the three primary elements: nitrogen, phosphorus, and potassium.
Complete fertilizer
Applying fertilizer by drilling holes in the soil within the root zone
Drill-hole method of fertilization
Imaginary line defined by the branch spread of a single plant or group of plants
drip line
17 minerals essential to the growth and development of trees. These minerals are essential because plants cannot complete their life cycle without them.
Essential elements
Percentage of primary elements in a fertilizer
Fertilizer analysis
Injury to a plant resulting from excess fertilizer salts in the surrounding soil
Fertilizer burn
Laboratory analysis of the mineral content of foliage
Foliar analysis
Device, capsule, or pellets inserted into the trees xylem system to treat or prevent diseases, disorders, or pest problems. Requires a relatively large diameter and deep hole in the trunk
Implant
Method of putting a liquid fertilizer or pesticide directly into the soil or a plant tissue.
Injection
Not containing carbon.
Inorganic
Applying liquid formulations of fertilizer by injection into the root zone on the tree
Liquid injection fertilization
Essential element that is required by plants and relatively large quantities
Macro nutrient
Essential element that is required by plants and relatively small quantities
Micronutrient
In chemistry, a substance containing carbon. In an applied Arboricultural context, a substance, especially a fertilizer or pesticide, of animal or vegetable origin
Organic
Philosophy of basing fertilization recommendations on plant needs, which are primarily determined by soil or tissue testing.
Prescription fertilization
Mineral element required in moderate amounts by plants
Secondary nutrient
Fertilizer that is at least 50% water insoluble nitrogen. Rate of release may vary depending on soil moisture and temperature
Slow-release fertilizer
Analysis of soil to determine pH, mineral composition, structure, and other characteristics.
Soil analysis
Placement of fertilizer or other material below the soil surface
Subsurface application
Conversion of a soild or liquid into a gas or vapor
Volatilization
Nitrogen fertilizer in a form that is not readily soluble in water
Water-insoluble nitrogen (WIN)
Chemical compound that keeps plant nutrients soluble and available for plant absorption over a broad range of pH. Usually iron
Chelate
