Horticulture Plant Nutrition

Elements that are essential to plant growth but are only needed in small amounts are called _______.

• micronutrients

• macronutrients

• primary nutrients

• secondary nutrients

Elements that are essential to plant growth and are needed in relatively large amounts are called _______.

• micronutrients

• macronutrients

• Fertilizer

How many nutrients are essential for a plant to grow and thrive?

(a)  

Which 3 elements are obtained by the plant from water and air. Hint: Used during photosynthesis and cellular respiration.

• Fe, Ca, Mg

• N, P, C

• N, P, K

• C, H, O

Tags

NGSS.HS-LS1-6

NGSS.HS-LS2-5

Sulfur, magnesium, and calcium are the three ___________ __________.

• secondary macronutrients

• primary macronutrients

• secondary micronutrients

• primary micronutrients

Which of these elements is NOT a micronutrient.

• Boron

• Zinc

• Magnesium

• Manganese

Which elemental deficiency is associated with purplish coloration of the leaves?

• P, Phosphorus

• N, Nitrogen

• S, Sulfur

• K, Potassium

Tags

NGSS.MS-LS2-1

________ is a yellowing of the leaves usually observed with an elemental deficiency.

• mosaic

• wilting

• leaf spot

• chlorosis

Which of the following is NOT a function of Nitrogen in plants.

• promotes rapid growth

• stimulates root growth

• synthesis of amino acids

• chlorophyll formation

A browning or blackening of the outside edge of a leaf is called _____ _____.

• margin burn

• sun burn

• scalding

• salt toxicity

Tags

NGSS.MS-LS1-5