In This Section

Topics

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 - Tobacco

Soil Phosphorus(0.5 M sodium bicarbonate extract) -- Tobacco flue-cured & burley
mg P L-1 of soil (ppm P) phosphate (P2O5) required kg/ha
0‑3

260 HR
4‑5

250 HR
6‑7

240 HR
8‑9

230 HR
10‑12

220 HR
13‑15

210 HR
16‑20

200 MR
21‑25

180 MR
26‑30

160 MR
31‑40

140 MR
41‑50

110 MR
51‑60

80 LR
61‑80

50 LR
80+

20 RR

 

Soil Potassium (1 M ammonium acetate extract) - Tobacco flue-cured & burley
Mg K L-1 of soil (ppm K) Potash (K2O) required kg/ha
0‑15

270 HR
16‑30

260 HR
31‑45

240 HR
46‑60

220 HR
61‑80

190 HR
81‑100

170 HR
101‑120

150 MR
121‑150

140 MR
151‑180

130 MR
181‑210

120 MR
211‑250

110 LR
250+

100 RR

* Where there is a recommendation of more than 180 kg of phosphate and 220 kg of potash, to avoid salt problems it is considered best to apply the additional amounts as a separate application rather than in bands at planting time.

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)


| Fertilizer Recommendation Tables - Table of Contents |

| Top of Page |

 

For more information:
Toll Free: 1-877-424-1300
Local: (519) 826-4047
E-mail: ag.info.omafra@ontario.ca