Foliar Greenhouse fertigation Open field fertigation

Van Iperen Magnesium Sulphate Horticultural Grade is a highly pure Magnesium fertilizer which dissolves rapidly and completely. Our product has a limited caking sensitivity and is recommended as of vegetative growth and during production phases. The high level of Magnesium contributes to the production of chlorophyll. The absence of Sulfur is highly valued to the plant especially in early growing stages.

  • Improves leaf colour
  • Developed for fertigation in open field and greenhouses. Also suitable for foliar application
Foliar Greenhouse fertigation Open field fertigation
  • Low on heavy metals
  • Low on Sodium and Chloride
  • White crystals

Hydroponics

Kg in 1.000 l stock solution MgO in kg SO3 in kg1
75 12,0 24,0
100 16,0 32,0
125 20,0 40,0
150 24,0 48,0

Mentioned concentrations represents the amount of nutrients in the stock solution. The final concentration in the irrigation water depends on the amount of nutrients in the stock solution, the injection ratio and the amount of nutrients used in the water.

Fertigation

Crop Application date Min kg/ha/season Max kg/ha/season
Fruit trees
• As of end of flowering 150 250
Vegetables
• During vegetative growth 150 300
Vineyards
• As of leaf bud opening
• Until beginning of flowering
100 150

Foliar Application

Crop Application date Min kg / ha / appl Max kg / ha / appl Conc. % (w/v))
Fruit trees
3 - 4 applications:
• As of fruit setting
• 10 - 14 days interval
3 5 0.5
Vegetables
1 - 3 applications:
• As of vegetative growth
• 10 - 14 days interval
5 10 1.0
Corn
1 - 2 applications:
• As of 4 - 6 leaves stage
• 10 - 14 days interval
3 6 1.0 - 1.5
Sugarbeet
2 - 3 applications:
• Summer application
3 6 1.0 - 1.5
Vineyards
3 - 4 applications:
• As of vegetative growth
• 10 - 14 days interval
4 12 1.0 - 1.5
Rapeseed
1 - 2 applications:
• Until flowering starts
3 6 1.0 - 1.5

In case of foliar feeding as part of a mix with crop protection products, a compatibility test has to be done prior to preparing the spray-mix.

The mentioned indicated dosages and application stages are given as a guideline. Exact dosages, concentration and application stage are subject to local conditions, use of other fertilizers and can only be given after an objective diagnosis.

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Compatible with other fertilizers, with the exception of Calcium fertilizers. Therefore a separate tank is needed or fertilizers should be applied on different times.