Photo by Melody
Congratulations to all our photo contest participants! Check out the winning photos here. We will have the 2015 calendars available to order from Zazzle soon.

Definition of macronutrients

Categorized under "General"

Definition as written by Greenwood:

An element - such as carbon, hydrogen, oxygen, or nitrogen - required in large proportion for the normal growth and development of a plant

Definition as written by Plant_Geek:

Mineral elements which are required by plants for growth and which individually make up to 0.5% to 3.0% of the dry weight of a plant. Macrocutrients include: carbon (C), hydrogen (H), oxygen (O), phosphorus (P), potassium (K), nitrogen (N), sulphur (S), calcium (Ca) and magnesium (Mg).

Definition as written by JaxFlaGardener:

Macronutrients are the first nine of the sixteen essential elements for plant growth:

Obtained from water:
Oxygen (O)
Hydrogen (H)
Carbon (C)

Obtained from soil (or soil amendments/fertilizers)
*Nitrogen (N)
*Phosphorus (P)
*Potassium (K)

**Calcium (Ca)
**Magnesium (Mg)
**Sulfur (S)

* N, P, and K (in this order) are the macronutrient essential elements listed as the three numbers on fertilizer labels and under the guaranteed analysis

** Ca, Mg, and S are considered "secondary" macronutrients by some sources

In addition to these macronutrients, the other essential elements for plant growth (known as micronutrients) are:
Iron (Fe)
Boron (B)
Manganese (Mn)
Molybdenum (Mb)
Chlorine (Cl)
Copper (Cu)
Zinc (Zn)

Add a definition to this term

Return to the Gardenology homepage

Return to Dave's Garden

We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2014 Dave's Garden, an Internet Brands company. All Rights Reserved.

Hope for America