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Fertilizer Recommendation Tables - 2007 Revision

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

Phosphorus and Potassium Requirements
for Berries, Tree Fruits, Grapes and Nursery Stock

Phosphate (P205) required - kg/ha
   Soil Phosphorus (0.5 M sodium bicarbonate extract) mg P L-1 of soil (ppm P) New plantings blueberries, strawberries, raspberries, gooseberries, currants, nursery stock  Established blueberries, strawberries, raspberries, gooseberries, currants, nursery stock    New plantings of apples**, peaches, pears, plums, cherries, grapes
0-3 140 HR 100 HR 80 HR
4-5 130 HR 90 HR 60 HR
6-7 120 HR 80 HR 50 HR
8-9 110 HR 70 HR 40 MR
10-12 100 HR 70 HR 20 MR
13-15 90 HR 60 HR 0 LR
16-20 70 MR 50 MR 0 LR
21-25 60 MR 40 MR 0 RR
26-30 50 MR 30 MR 0 RR
31-40 40 MR 20 MR 0 RR
41-50 0 H 0 RR 0 RR
51-60 0 RR 0 RR 0 RR
61-80 0 NR* 0 NR* 0 NR*

80+

 0 NR* 0 NR* 0 NR*

 

Potash (K20) required -kg/ha
   Soil Potassium (1 M ammonium acetate extract) mg K L-1 of soil(ppm K) New or Established blueberries, strawberries, raspberries, gooseberries, currants, nursery stock    New plantings of apples** peaches, pears, plums, cherries     New plantings of grapes***
0-15 130 HR 180 HR 270 HR
16-30 120 HR 170 HR 270 HR
31-45 110 HR 160 HR 270 HR
46-60 100 HR 140 HR 270 HR
61-80 90 HR 110 HR 270 HR
81-100 80 HR 70 MR 270 HR
101-120 70 MR 40 MR 270 HR
121-150 60 MR 20 MR 270 MR
151-180 40 MR 0 LR 270 MR
181-210 0 LR 0 LR 270 MR
211-250 0 RR 0 RR 270 LR

250+

 0 NR* 0 NR* 270 LR

* adding nutrients to soils with these levels of nutrients may reduce crop yields or quality by interfering with the uptake of other nutrients.

** For established tree fruits and grapes there will be no print-out of N, P and K requirements. Plant analysis is used to estimate requirements for established tree fruits and grapes.

*** Apply only every second year.

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 2007).


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