High
Performance Fertilizer
K-Mag® STANDARD supplies three
vital plant nutrients—potassium, magnesium and sulfur (22%
K20, 11% Mg and 22% S). It is an excellent source of non-chloride
potassium, water soluble magnesium and non-acidifying sulfur.
K-Mag STANDARD is an economical source of these nutrients particularly
in direct soil application situations such as perennial plantation
crops (banana, citrus, coffee, palm oil, rubber, tea, etc.).
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 STANDARD has a typical
SGN of 85 and is often used as a source of potassium, magnesium
and sulfur in granulated 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 |
0.1 |
— |
| Sodium |
Na |
0.3 |
— |
| Magnesium |
Mg |
11.3 |
10.8
min. |
| Sulfur |
S |
22.5 |
22.0
min. |
| Chloride |
Cl |
1.4 |
2.5
max. |
| Water Insoluble |
- |
1.0 |
— |
| Moisture (105°C) |
H2O |
0.05 |
— |
| PHYSICAL PROPERTIES |
TYPICAL |
| Bulk Density (Loose) |
|
| - lb/cu foot |
91 |
| - kg/cu meter |
1458 |
| Angle of repose
(degrees) |
34 |
OTHER SIZING CHARACTERISTICS
| Parameter |
Typical |
| Size
Guide Number (SGN) |
85 |
| Uniformity Index
(UI) |
15 |
PARTICLE SIZE DISTRIBUTION CUMULATIVE %
| Tyler Mesh |
U.S. Mesh |
Opening (mm.) |
Typical Range
(% cum.) |
Typical
(% cum.) |
| 10 |
12 |
1.700 |
0-5 |
1 |
| 14 |
16 |
1.180 |
4-20 |
13 |
| 20 |
20 |
0.850 |
20-65 |
41 |
| 28 |
30 |
0.600 |
40-85 |
65 |
| 35 |
40 |
0.425 |
65-95 |
81 |
| 48 |
50 |
0.300 |
80-95 |
90 |
| 65 |
70 |
0.212 |
90-100 |
96 |
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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