ARCHIVE: Fertiliser Manual (RB209)

Self-Blanching Celery

 

SNS, P, K or Mg Index

 
 

0

1

2

3

4

5

6

 

kg/ha

 
Nitrogen (N) - all soil types

 

 

 

 

 

 

 

- seedbed

75

75

75

75

0a

0a

0a

- top-dressing

See note below

Phosphate (P2O5)

250

200

150

100

50

0

0

Potash (K2O)

450

400

350 (2-)
300 (2+)

210

50

0

0

Magnesium (MgO)

150

100

0

0

0

0

0

a. A small amount of nitrogen may be needed if soil nitrogen levels are low in the 0-30 cm of soil.
b. A top-dressing of 75-150 kg N/ha will be required 4-6 weeks after planting.

Sodium

Celery is responsive to sodium which is recommended for celery grown on all soils except peaty and some Fen silt soils, which generally contain adequate amounts of sodium. Sodium can be applied as agricultural salt at 375 kg/ha (200 kg Na2O/ha). The application will not have any adverse effect on soil structure, even on soils of low structural stability.

Don’t forget to:

  • make allowance for nutrients applied in organic manures (see Section 2)
  • ensure the phosphate and potash offtake is balanced by application on Index 2 soils and check that the soil is maintained at Index 2 by soil sampling every 3 – 5 years
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