5 out of 5
Product Description
Magnesium sulfate (or Epsom salt) is used to correct magnesium deficiency which can be common in the hydroponic production of vegetable crops. It is perfect for use as a part of a hydroponic nutrient solution because it is an inexpensive, highly soluble and naturally occurring.
This agricultural-grade magnesium sulfate heptahydrate is an extremely soluble and bioavailable source of magnesium and sulfur for the health of animals and plants.
For Plants:
Crop Yield Level LBS MG taken up
Alfalfa 10 tons 53
Bermudagrass 10 tons 50
Corn 200 bu 53
Cotton 1500 lbs 35
Potatoes 25 tons 50
Rice 7000 lbs 14
Soybeans 60 bu 27
Onions 30 tons 37
Tomatoes 40 tons 36
Wheat 80 bu 24
For Animals:
Mg Source Mg Content Relative Biological Value*
Mag-sulfate 100g/kg 96%
Mag-Chloride 120 g/kg 89%
Mag-phosphate 260 g/kg 86%
Mag-oxide powder 510 g/kg 84%
Mag-oxide granular 510 g/kg 61%
*Feed Ingredients News, Sept. 2004
Chemical Properties:
Guaranteed Analysis:
Variable Solubility Data table:
% Mg Solution** 1 Gallon Water (70°) Amount Magnesium Sulfate Hepta.
5% Mg 1 Gallon (8.33 lbs) 8.5 lbs
4% Mg 1 Gallon (8.33 lbs) 5.7 lbs
3% Mg 1 Gallon (8.33 lbs) 3.6 lbs
2% Mg 1 Gallon (8.33 lbs) 2.1lbs
*These mixing amounts based on mixing of water and magnesium sulfate hepta. Only; additional inputs in solution will lessen the amount of mag-sulfate that can be added to make a saturated solution and lessen its Mg concentration.
** At any solution concentration of Mg there is 1.3 times as much Sulfur (S) in solution.
Magnesium sulfate also known as Epsom salt can be used for crops or for your animals.
Guaranteed Analysis:
magnesium sulfate heptahydrate
This agricultural-grade magnesium sulfate heptahydrate is an extremely soluble and bioavailable source of magnesium and sulfur for the health of animals and plants.
For Plants:
- Contains essential plant nutrients: Magnesium and Sulfur
- Optimum solubility needed to make true clear solutions and compatible with other soluble nutrients
- Ideal source for all Fertigation Systems: center pivot, micro-jet, drip-trickle and foliar spray applications
- Magnesium is critical as a central element in the chlorophyll molecule to capture energy from the sun and convert it to plant sugars via photosynthesis
- Magnesium is especially required in sandy soils, soils with low CEC, for crops with high Mg demand and in situations of high applications of ammonium-N and/or Potassium
Crop Yield Level LBS MG taken up
Alfalfa 10 tons 53
Bermudagrass 10 tons 50
Corn 200 bu 53
Cotton 1500 lbs 35
Potatoes 25 tons 50
Rice 7000 lbs 14
Soybeans 60 bu 27
Onions 30 tons 37
Tomatoes 40 tons 36
Wheat 80 bu 24
For Animals:
- Contains macro-nutrient Magnesium and secondary nutrient Sulfur
- Excellent solubility means greater animal bio-availability than other Mg sources
- Effective Mg for the prevention and treatment of hypomagnesaemia and grass tetany; especially in early lactating dairy cows
- Effective Mg nutrition in non-ruminant feeds; also used for enhanced mobility, reduced discomfort and a beneficial calming effect
- Magnesium is an important co-factor in enzymatic reactions vital to every metabolic pathway in every animal species
Mg Source Mg Content Relative Biological Value*
Mag-sulfate 100g/kg 96%
Mag-Chloride 120 g/kg 89%
Mag-phosphate 260 g/kg 86%
Mag-oxide powder 510 g/kg 84%
Mag-oxide granular 510 g/kg 61%
*Feed Ingredients News, Sept. 2004
Chemical Properties:
- Chemical Name: Magnesium Sulfate Heptahydrate
- Formula: MgSO4•7H2O
- GRAS-Generally Regarded As Safe
Guaranteed Analysis:
- Magnesium (MG): 9.8% (min.), 9.8% water soluble magnesium
- Sulfur (S): 12.9% (min)
Variable Solubility Data table:
- Saturated Solution with 70°F water = 5.5% Mg
- Saturated Solution with 60°F water = 4.7% Mg
% Mg Solution** 1 Gallon Water (70°) Amount Magnesium Sulfate Hepta.
5% Mg 1 Gallon (8.33 lbs) 8.5 lbs
4% Mg 1 Gallon (8.33 lbs) 5.7 lbs
3% Mg 1 Gallon (8.33 lbs) 3.6 lbs
2% Mg 1 Gallon (8.33 lbs) 2.1lbs
*These mixing amounts based on mixing of water and magnesium sulfate hepta. Only; additional inputs in solution will lessen the amount of mag-sulfate that can be added to make a saturated solution and lessen its Mg concentration.
** At any solution concentration of Mg there is 1.3 times as much Sulfur (S) in solution.
Directions
Magnesium sulfate also known as Epsom salt can be used for crops or for your animals.
Guaranteed Analysis:
- Magnesium (MG): 9.8% (min.), 9.8% water soluble magnesium
- Sulfur (S): 12.9% (min)
Ingredients
magnesium sulfate heptahydrate
- Certified organic? No
- Package code: GP1147
- Shipping weight: 5.14 lb
- Size: 5 lb
- Storage climate: dry
NOTE: Please read carefully with descripton, ingredients, directions or warning on the actual product before using or consuming the Gourmet Food item.
Perishable items, and chocolates in the summer, have to ship overnight, please Contact Us to confirm actual shipping fee. If you do not want to ship it overnight, NO credits will be written if it arrives melted.
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
Return Policy
All AZU- items are non-returnable.
Need more information?
Our staff are available to answer any questions you may have about this item
Our staff are available to answer any questions you may have about this item
Customer Reviews
By Anita Chouinard
Date: April 13, 2024
Great for the chickens
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By Tammy
Date: March 24, 2024
For my garden. Trust the quality.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Svetlana Abramova
Date: October 21, 2022
I love it! Will order again in the nesr future!
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By vicki walker
Date: August 16, 2022
Just what I expected
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By AKMOM
Date: July 18, 2022
It greens up veggies.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Virginia Mikolaj
Date: June 11, 2022
Used in garden
Rating: 
[4 of 5 Stars!]
[4 of 5 Stars!]