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K-MAG Granular is
an excellent source of potassium, magnesium and sulfur for
bulk blended fertilizers. Mined near Carlsbad, New Mexico,
this naturally-occurring mineral known as langbeinite has
a guaranteed analysis of 22% K20,
11% Mg (18% MgO) and 22% S.
Low Chloride Content
The maximum chloride content of K-MAG
Granular is typically below 3.0 percent, minimizing the potential
for fertilizer "burn." Thus, it is widely used on sensitive
vegetable and fruit crops requiring high fertilizer rates,
and on other crops - tobacco, for example - which have a
high potassium and magnesium demand, yet are sensitive to
chloride.
Non-Acidifying
K-MAG Granular is neutral in pH and does
not contribute to soil acidity.
Totally Water Soluble
K-MAG Granular is totally water soluble;
providing potassium, magnesium and sulfur in a form readily
absorbed by plants. Yet, because of its crystalline nature,
K-MAG Granular dissolves gradually throughout the growing
season, thus providing a continuous source of nutrients.
Replacement of K, Mg and S
Potassium, magnesium and sulfur are three
basic nutrients essential for plant growth and vital to profitable
crop production. They are continually removed from the soil
by high-yield crop production and, in the case of sulfur
and magnesium, are not replaced by many of today's high-analysis
fertilizers.
All-Natural Product
As an all-natural fertilizer product,
K-MAG Granular is approved for use with organically grown
crops.
Balanced Fertilization
Crop producers worldwide have reported
extra profit from K-MAG fertilizer when using it to help
balance a good fertility program. Exact monetary benefits
from using K-MAG fertilizer depends on crop, cropping systems,
soil type, degree of nutrient deficiencies, previous cropping
methods and climatic conditions during the growing season.
Agronomic Characteristics
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.
K-MAG Granular Specifications: 0-0-22
CHEMICAL ANALYSIS
| Component |
Symbol |
Typical Range (%) |
Typical (%) |
Guarantee (%) |
| Potassium Oxide |
K2O |
22.0-22.5 |
22.1 |
22.0 min. |
| Potassium |
K |
— |
18.3 |
— |
Sulfate of Potash Magnesia |
S-P-M |
94.7-98.3 |
97.2 |
— |
| Calcium |
Ca |
— |
0.2 |
— |
| Sodium |
Na |
— |
0.7 |
— |
| Magnesium |
Mg |
11.1-11.5 |
11.3 |
10.8 min. |
| Sulfur |
S |
22.2-22.6 |
22.4 |
22.0 min. |
| Chloride |
Cl |
0.9-2.1 |
1.5 |
2.5 max. |
| Water Insoluble |
- |
— |
0.3 |
— |
| Moisture (105°C) |
H2O |
0.04-0.15 |
0.05 |
— |
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TYPICAL PROPERTIES
| Physical
Properties |
Typical |
| Bulk Density, loose lb/cu
foot |
94 |
| kg/cu meter |
1506 |
| Angle of repose (degrees) |
37 |
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SCREEN ANALYSIS (SGN=250: UI=29)
Tyler Mesh |
U.S. Mesh |
Opening (mm.) |
Typical Range
(% cum.) |
Typical
(% cum.) |
6 |
6 |
3.360 |
10-32 |
21 |
8 |
8 |
2.380 |
36-65 |
50 |
10 |
12 |
1.680 |
71-92 |
82 |
14 |
16 |
1.190 |
92-99 |
96 |
20 |
20 |
0.841 |
96-99 |
98 |
28 |
30 |
0.600 |
98-100 |
99 |
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Product analyses are typical as tested at mine site. Handling
and transportation may affect the analysis of the delivered product.
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