Fertilizer Recommendation Tables
- 2010 Revision
2010 Revision
Phosphorus and Potassium Requirements for Turf and Nursery
Sod
Phosphate (P2O5) required- kg/ha** ***
Soil Phosphorus (0.5M sodium bicarbonate
extract)
mg P L-1 of soil (ppm P) |
Greens, tees lawns, fairways,
playing fields |
Low use turf |
Nursery sod |
| 0-3 |
370 HR
|
90 HR
|
230 HR
|
| 4-5 |
360 HR
|
80 HR
|
210 HR
|
| 6-7 |
350 HR
|
70 HR
|
200 HR
|
| 8-9 |
340 HR
|
60 HR
|
190 HR
|
| 10-12 |
320 HR
|
40 MR
|
170 HR
|
| 13-15 |
300 HR
|
30 MR
|
150 MR
|
| 16-20 |
260 HR
|
20 MR
|
130 MR
|
| 21-25 |
220 MR
|
0 LR
|
110 MR
|
| 26-30 |
170 MR
|
0 LR
|
90 MR
|
| 31-40 |
120 MR
|
0 RR
|
70 LR
|
| 41-50 |
70 LR
|
0 RR
|
50 LR
|
| 51-60 |
40 LR
|
0 RR
|
40 LR
|
| 61-80 |
0 RR
|
0 NR*
|
30 LR
|
| 80+ |
0 NR*
|
0 NR*
|
0 NR*
|
Potash (K2O) required-kg/ha***
Soil Potassium (1 M ammonium acetate exctract)
mg K L-1 of soil (ppm K) |
Greens & tees |
Lawns, fairways, playing fields |
Low use turf |
Nursery sod |
| 0-15 |
400 HR
|
200 HR
|
90 HR
|
140 HR
|
| 16-30 |
360 HR
|
180 HR
|
80 HR
|
120 HR
|
| 31-45 |
320 HR
|
160 HR
|
70 HR
|
80 HR
|
| 46-60 |
280 HR
|
140 HR
|
50 HR
|
60 HR
|
| 61-80 |
200 HR
|
100 HR
|
30 MR
|
50 MR
|
| 81-100 |
160 HR
|
80 MR
|
20 MR
|
40 MR
|
| 101-120 |
120 MR
|
60 MR
|
20 MR
|
30 MR
|
| 121-150 |
80 MR
|
40 MR
|
0 LR
|
30 MR
|
| 151-180 |
40 MR
|
40 MR
|
O RR
|
0 LR
|
| 181-210 |
0 LR
|
0 LR
|
O RR
|
0 RR
|
| 211-250 |
0 RR
|
0 RR
|
0 RR
|
0 RR
|
| 250+ |
0 NR*
|
0 NR*
|
0 NR*
|
0 NR*
|
* adding nutrients to soils with these levels of nutrients may reduce
crop yields or quality by interfering with the uptake of other nutrients.
** Above rates are total yearly applications. Not more than 90 kg/ha
should be applied in any one application except for nursery sod which
may receive the total yearly amount in one application before seeding.
*** (Divide kg/ha by 100 to obtain kg/100 m2)
HR, MR, LR, RR, and NR denote, respectively, high, medium, low, rare
and no probabilities of profitable crop response to applied nutrient.
Approved: Ontario Soil Management Research and Services Committee
(June 2010)
