Fertiliser management for fresh market potatoes grown on coastal sands

Page last updated: Tuesday, 23 January 2018 - 12:19pm

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Fertiliser programs

Winter planted crops

Table 1 Suggested rates of nitrogen, potassium, magnesium and calcium, in kg/ha/week of nutrient and fertiliser, applied before and after emergence to winter planted potatoes on coastal sands. These rates apply to soils of low N and K fertility.

Timing

(weeks post emergence)

 N Urea K Potassium sulphate Mg Magnesium sulphate Ca Calcium nitrate
Before emergence 50 109 82 200 5 50 0 0
At emergence 40 87 40 98 0 0 0 0
1 and 2 40 87 40 98 0 0 0 0
3 40 0 40 98 8 80 50 265
4 and 5 40 87 40 98 0 0 0 0
6 40 0 40 98 8 80 50 265
7 and 8 40 87 40 98 0 0 0 0
9 40 87 40 98 8 80 0 0
10 to 12 40 87 40 98 0 0 0 0
Total 570 1065 602 1474 29 290 100 530

Notes:

  1. Use low (<0.25%) biuret urea
  2. Apply urea or nitrogen after planting but before emergence
  3. In the 'before emergence' row, the total nutrient applied is shown as it includes potassium and magnesium incorporated before planting

Summer planted crops

Table 2 Suggested rates of nitrogen, potassium, magnesium and calcium, in kg/ha/week of nutrient and fertiliser, applied before and after emergence to summer planted potatoes on coastal sands. These rates apply to soils of low N and K fertility.

Timing

(weeks post emergence)

 N Urea K Potassium sulphate Mg Magnesium sulphate Ca Calcium nitrate
Before emergence 50 109 82 200 5 50 0 0
At emergence 40 87 40 98 0 0 0 0
1 and 2 40 87 40 98 0 0 0 0
3 40 0 40 98 8 80 50 265
4 and 5 40 87 40 98 0 0 0 0
6 40 0 40 98 8 80 50 265
7 and 8 40 87 40 98 0 0 0 0
9 40 87 40 98 8 80 0 0
10 40 87 40 98 0 0 0 0
Total 490 891 522 1276 29 290 100 530

Notes:

  1. Use low (<0.25%) biuret urea
  2. Apply urea or nitrogen after planting but before emergence
  3. In the 'before emergence' row, the total nutrient applied is shown as it includes potassium and magnesium incorporated before planting

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Contact information

Peter Dawson
+61 (0)8 9892 8461
Email Peter Dawson

Fertiliser management for fresh market potatoes grown on coastal sands

  1. Introduction
  2. Pre-planting
    1. Trace elements
    2. Nitrogen, phosphorus and potassium
  3. Post-planting and emergence
    1. Nitrogen
    2. Potassium
    3. Sulphur
    4. Magnesium
    5. Calcium
    6. Urea quality
  4. Fertiliser programs
    1. Winter planted crops
    2. Summer planted crops
  5. Plant testing and irrigation
    1. Plant analysis
    2. Irrigation
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Author

Ian McPharlin

See Also

Trace elements for fresh market potatoes grown on coastal sands
Applying nutrients to vegetables via irrigation
Petiole analysis for fertiliser management of potatoes on sands
Fertiliser Calculator
Irrigation calculator

Regions

Mid West
Perth regions
South West

Seasons

Autumn
Spring
Summer
Winter