Environmental Requirements
This requirement provides energy for photosynthesis.
Light
These nutrients are required for normal plant growth and reproduction.
Essential Nutrients
Nutrients needed in large amounts.
Macronutrients
Plants absorb most nutrients through this plant structure.
Roots
This is the purpose of applying fertilizer to plants.
To supply nutrients for plant growth.
Too little of this requirement causes wilting, too much causes root rot.
Water/Moisture
The three primary macronutrients.
nitrogen, phosphorus, potassium (NPK)
Nutrients needed in small amounts.
Micronutrients
Soil pH affects nutrient uptake by changing this.
Nutrient availability
The three numbers on a fertilizer bag represent these nutrients.
Nitrogen, Phosphorus, and Potassium (N-P-K)
This requirement helps regulate plant temperature and gas exchange.
Air Movement
This nutrient is important for green color and leaf growth.
Nitrogen
Calcium, magnesium, and sulfur are classified as these.
Secondary Macronutrients
This plant tissue transports sugars produced during photosynthesis.
Phloem
Fertilizers supply nutrients that plants absorb through this plant part.
Roots
Seeds often need the right level of this to germinate properly.
Temperature
The three secondary macronutrients.
Calcium, Magnesium, and Sulfur
Iron and zinc belong to this nutrient group.
Micronutrients
Root hairs increase uptake by doing this.
Increasing surface area
This type of fertilizer comes from plant or animal materials.
Organic fertilizer
Lack of this requirement can lead to weak stems and poor root growth.
Oxygen
A lack of nutrients results in this visible problem.
Deficiency symptoms
Name one Micronutrient
iron / zinc / boron / manganese / copper / molybdenum / chlorine
This plant tissue moves water and dissolved minerals upward from the roots.
Xylem
Too much fertilizer can damage plants by causing this problem.
Fertilizer burn