ProCrop
Guidelines for Approximate Safe Rates of Urea (46-0-0)
Guidelines for Approximate Safe Rates of Urea (46-0-0) Nitrogen Applications with the
Seed of Canola and Flax
(All Rates Are Lbs Actual N Per Acre)
| (1" spread) Disc or knife opener |
(2" spread) Spoon or hoe opener |
(3" spread) Sweep opener |
|||||||
| Row Spacing | 6" | 9" | 12" | 6" | 9" | 12" | 6" | 9" | 12" |
| % of Seedbed Utilized | 17 | 11 | 8 | 33 | 22 | 17 | 50 | 33 | 25 |
| Soil Texture | |||||||||
| Light (sandy loam) | 10 | 5 | 0 | 20 | 15 | 10 | 30 | 20 | 15 |
| Medium (loam-clay loam) | 15 | 10 | 5 | 30 | 20 | 15 | 40 | 30 | 20 |
| Heavy (clay-heavy clay) | 20 | 15 | 10 | 40 | 30 | 20 | 50 | 40 | 30 |
Source: Saskatchewan Advisory Fertilizer Council
For example, for a 1-inch spread pattern on a 6-inch row spacing, % SBU = 1/6 x 100 = 17%
