Osmocote® Plus 15-9-12
Osmocote Plus 15-9-12 is recommended when growing a wide variety of
plants. Standard release pattern delivers a steady stream of nutrition
throughout the growth cycle.
Guaranteed Analysis
- Total Nitrogen (N): 15%
- Nitrate nitrogen (N-NO3): 6.6%
- Ammoniacal nitrogen (N-NH4): 8.4%
- Phosphorus Pentoxide (P2O5): 9%
- Potassium Oxide (K2O): 12%
- Magnesium (Mg): 1.3% (Water soluble: 0.8%)
- Sulfur (S): 6%
- Boron (B): 0.02%
- Copper (Cu): 0.05% (Water soluble: 0.05%)
- Iron (Fe): 0.46% (Water soluble: 0.09%; Iron EDTA: 0.01%)
- Manganese (Mn): 0.06% (Water soluble: 0.02%)
- Molybdenum (Mo): 0.02%
- Zinc (Zn): 0.05% (Water soluble: 0.011%)
Benefits
- Patterned Release Technology meets specific feeding cycles with unmatched consistency, efficiency, and safety
- Can be incorporated into growing media or surface applied in the container
- Use alone or in combination with a water-soluble fertilizer
- Safe for sensitive crops
- Suitable for use with dibbling equipment
Application Rates
Longevity at Average Media Temperature
| 60°F (15°C) |
70°F (21°C) |
80°F (26°C) |
90°F (32°C) |
| 6-7 months |
5-6 months |
4-5 months |
3-4 months |
Surface Application (Grams)
| Common Container Volumes |
Approx. Containers per Cubic Yard* |
Low |
Med |
High |
| 6" azalea / hibiscus (1.5 qt.) |
539 |
5 |
8 |
12 |
| 6" standard (1.75 qt.) |
462 |
5 |
10 |
14 |
| 6.5" azalea (1.8 qt.) |
449 |
6 |
10 |
15 |
| 8" azalea / hibiscus (3 qt.) |
269 |
9 |
17 |
24 |
| 8" mum pan (1 gal.) |
260 |
10 |
17 |
25 |
| 9" mum pan (1.25 gal.) |
166 |
15 |
27 |
40 |
| 10" hanging basket (1.25 gal.) |
150 |
17 |
30 |
44 |
| 12" color bowl (2 gal.) |
112 |
22 |
41 |
59 |
| 12" hanging basket (2.25 gal.) |
100 |
25 |
45 |
66 |
| 1 quart |
850 |
3 |
5 |
8 |
| 2 quart |
400 |
6 |
11 |
16 |
| 1 gallon trade |
300 |
8 |
15 |
22 |
| 1 gallon |
210 |
12 |
22 |
31 |
| 2 gallon trade |
125 |
20 |
36 |
53 |
| 2 gallon |
102 |
24 |
45 |
65 |
| 3 gallon |
70 |
36 |
65 |
94 |
| 5 gallon |
52 |
48 |
87 |
127 |
| 7 gallon |
35 |
71 |
130 |
188 |
*May vary depending on container brand, media, and fill method.
Large Container Volumes
| Large Container Volumes |
Surface Area (sq. ft.) |
Low |
Med |
High |
| 10 gallon (17" diam.) |
1.4 |
86 |
157 |
228 |
| 15 gallon (17.5" diam.) |
1.5 |
92 |
168 |
244 |
| 20 gallon (21" diam.) |
2.3 |
142 |
258 |
374 |
| 25 gallon (22.5" diam.) |
2.8 |
173 |
314 |
455 |
| 30 gallon (26.5" diam.) |
3.8 |
234 |
426 |
618 |
| 45 gallon (30" diam.) |
4.8 |
296 |
538 |
780 |
| 65 gallon (30" diam.) |
4.8 |
296 |
538 |
780 |
| 100 gallon (36" diam.) |
7.1 |
438 |
796 |
1154 |
| 200 gallon (48.5" diam.) |
12.8 |
789 |
1435 |
2081 |
| 24" box |
4.0 |
247 |
448 |
650 |
| 30" box |
6.25 |
385 |
701 |
1016 |
| 36" box |
9.0 |
555 |
1009 |
1463 |
| 48" box |
16.0 |
986 |
1794 |
2601 |
| For containers not listed, multiply surface area by: |
|
62 |
112 |
163 |
Incorporation
|
Low |
Med |
High |
| Pounds per cubic yard |
5.5 |
10.0 |
14.5 |
| Kilograms per cubic meter |
3.3 |
5.9 |
8.6 |
| Grams per liter |
3.3 |
5.9 |
8.6 |
Landscape**
|
Low |
Med |
High |
| Pounds per 1000 square feet |
13.0 |
20.0 |
26.5 |
| Kilograms per 100 square meters |
6.3 |
9.8 |
12.9 |
| Pounds of N per 1000 square feet |
2.0 |
3.0 |
4.0 |
**ICL recommends low rate on heavy or clay soils, high rate on light or sandy soils.
Approximate Volume Measurements
|
#1 |
#2 |
#3 |
#4 |
#5 |
#6 |
#7 |
| ICL spoons (grams) |
9 |
14 |
18 |
38 |
49 |
75 |
100 |
|
1 tsp. |
1 tbsp. |
1/4 c. |
1/3 c. |
1/2 c. |
1 c. |
| Conventional measures (grams) |
5 |
16 |
71 |
94 |
141 |
283 |
How to Use
- Verify product analysis, longevity, and rate for plants in your production system (for assistance, contact your regional ICL Territory Manager or call ICL Customer Service at 800-492-8255)
- Consult rate tables printed on bag labels and product sheets
- For incorporation, blend into growing media to ensure uniform distribution of fertilizer
- Do not over-mix (doing so could damage fertilizer coating)
- Growing media should be used within two to four weeks after incorporating fertilizer
- For top-dress applications, spread fertilizer evenly on container surface (avoid piling fertilizer directly against plant stem)
- Irrigate after application (irrigation frequency and volume should be adjusted during the crop production cycle according to crop type, environmental conditions, and desired soluble salt levels)
- A product trial is recommended before adopting a new fertilizer program or making full-scale changes to standard cultural practices (test several rates on representative plant types)
- Use caution when applying to plants being over-wintered under cover (if you can't monitor soluble salts and/or adjust irrigation practices, avoid fall and winter applications)
- Store in a clean, cool, dry place
