K-Mag - The Premium Fertilizer
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K- Mag Granular
 

High Performance Fertilizer

K-Mag® GRANULAR supplies three vital plant nutrients — potassium, magnesium and sulfur (22% K20, 11% Mg and 22% S). It is a naturally-occurring crystalline mineral which can be direct applied or used as a raw material in bulk blend fertilizers. It is an excellent source of non-chloride potassium, water soluble magnesium and non-acidifying sulfur. K-Mag GRANULAR provides an economical source of magnesium and sulfur to produce custom bulk blend fertilizers.

Its maximum chloride content is less than 2.5 percent, minimizing the potential for fertilizer "burn." It is widely used on sensitive vegetable and fruit crops that require high fertilization rates, but do not tolerate high levels of chloride or soluble salts. K-Mag GRANULAR has a typical SGN of 250 and is often used as a source of potassium, magnesium and sulfur in bulk blend formulas (NPK+Mg+S).

Agronomics

Potassium is required for the uptake of nitrogen and synthesis of protein and starch. It also helps activate more than sixty enzymes, making them available to stimulate other chemical processes within the plant. Adequate potassium is essential for fruit formation, optimum yields and high quality.

Magnesium activates a large number of enzymes in the plant and is also required for the synthesis of chlorophyll — the vital green pigment necessary for sugar manufacturing in plants.

Sulfur activates a number of enzymes, is vital to the formation of amino acids, is crucial in the production of protein and is especially important to plants with high oil content.

CHEMICAL ANALYSIS
Component
Symbol
Typical (%)
Guarantee (%)
Potassium Oxide
K2O
22.1
22.0 min.
Potassium
K
18.3
Calcium
Ca
0.2
Sodium
Na
0.3
Magnesium
Mg
11.3
10.8 min.
Sulfur
S
22.4
22.0 min.
Chloride
Cl
1.5
2.5 max.
Water Insoluble
-
1.0
Moisture (105°C)
H2O
0.05

PHYSICAL PROPERTIES TYPICAL
Bulk Density (Loose)  
lb/cu foot 94
kg/cu meter 1506
Angle of repose (degrees) 37

OTHER SIZING CHARACTERISTICS

Parameter Typical
Size Guide Number (SGN) 250
Uniformity Index (UI) 33

PARTICLE SIZE DISTRIBUTION CUMULATIVE %

Tyler Mesh
U.S. Mesh
Opening (mm.)
Typical Range
Typical
6
6
3.350
20-30
25.0
8
8
2.360
45-60
55.0
10
12
1.700
75-85
80.0
14
16
1.180
96-99
97.5
20
20
0.850
98-100
99.0

Product analyses are typical as tested on a composite sample. Grab samples or individual shipment analyses may vary from typical values. Handling and transportation may affect analysis of the delivered product.
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