Spectrum Analytic Inc
1087 Jamison Rd
Washington Court House, OH 43160
(800) 321-1562
1087 Jamison Rd
Washington Court House, OH 43160
(800) 321-1562
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| library:articles:potassium_basics 2010/03/24 15:53 | library:articles:potassium_basics 2010/03/24 15:56 current | ||
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| Recommended amounts of K<sub>2</sub>O are highly variable and depend on the initial soil test, the crop to be grown, and the requested yield goal. The annual recommendation for various crops can range from 0 to almost 1,000 lb K<sub>2</sub>O/acre. However, we do caution not to apply more than 400 lb K<sub>2</sub>O/acre in any single application. And, if 300 to 400 lb of K<sub>2</sub>O/acre is applied in a single application, it is best to incorporate that fertilizer with tillage. | Recommended amounts of K<sub>2</sub>O are highly variable and depend on the initial soil test, the crop to be grown, and the requested yield goal. The annual recommendation for various crops can range from 0 to almost 1,000 lb K<sub>2</sub>O/acre. However, we do caution not to apply more than 400 lb K<sub>2</sub>O/acre in any single application. And, if 300 to 400 lb of K<sub>2</sub>O/acre is applied in a single application, it is best to incorporate that fertilizer with tillage. | ||
| ^ Sources of Potassium ||| | ^ Sources of Potassium ||| | ||
| - | ^ Material ^ Chemical Symbol ^ Typical K<sub>2</sub>O Analysis | | + | ^ Material ^ Chemical Symbol ^ Typical K<sub>2</sub>O Analysis | |
| - | | Potassium Chloride/Potash | KCl | 60-62% | | + | | Potassium Chloride/Potash | KCl | 60-62% | |
| - | | Potassium Sulfate | K<sub>2</sub>SO<sub>4</sub> | 50-53% | | + | | Potassium Sulfate | K<sub>2</sub>SO<sub>4</sub> | 50-53% | |
| - | | Potassium-Magnesium Sulfate | K<sub>2</sub>SO<sub>4</sub> !BULLET 2MgSO<sub>4</sub> | 22% | | + | | Potassium-Magnesium Sulfate | K<sub>2</sub>SO<sub>4</sub> !BULLET 2MgSO<sub>4</sub> | 22% | |
| - | | Potassium Nitrate | KNO<sub>3</sub> | 44-46% | | + | | Potassium Nitrate | KNO<sub>3</sub> | 44-46% | |
| - | | Manure | (not applicable) | 0.4-1.0% | | + | | Manure | (not applicable) | 0.4-1.0% | |
| ^ Potassium from Manure ((Typical analysis range)) ||| | ^ Potassium from Manure ((Typical analysis range)) ||| | ||
| - | ^ Animal Type ^ K<sub>2</sub>O (lb/ton) || | + | ^ Animal Type ^ K<sub>2</sub>O (lb/ton) || |
| - | ^ ^ From ^ To | | + | ^ ^ From ^ To | |
| - | | Dairy | 6.3 | 9.5 | | + | | Dairy | 6.3 | 9.5 | |
| - | | Beef | 7.6 | 11.4 | | + | | Beef | 7.6 | 11.4 | |
| - | | Veal | 7.2 | 10.8 | | + | | Veal | 7.2 | 10.8 | |
| - | | Swine | 8.6 | 13.0 | | + | | Swine | 8.6 | 13.0 | |
| - | | Sheep | 15.6 | 23.4 | | + | | Sheep | 15.6 | 23.4 | |
| - | | Goat | 12.1 | 18.1 | | + | | Goat | 12.1 | 18.1 | |
| - | | Layers | 10.6 | 15.8 | | + | | Layers | 10.6 | 15.8 | |
| - | | Broilers | 10.0 | 15.0 | | + | | Broilers | 10.0 | 15.0 | |
| - | | Turkey | 13.5 | 20.3 | | + | | Turkey | 13.5 | 20.3 | |
| - | | Horse | 7.2 | 10.8 | | + | | Horse | 7.2 | 10.8 | |