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Fertilizer Recommendation Tables - 2008 Revision

Author: Keith Reid - Soil Fertility Specialist/OMAFRA
Creation Date: October 2007
Last Reviewed: November 2008
2008 Revision

Phosphorus and Potassium Requirements for Turf and Nursery Sod

Phosphate (P2O5) required- kg/ha** ***
Soil Phosphorus (0.5M sodium bicarbonateextract)
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 2008)


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