Foliar Greenhouse fertigation

Van Iperen Calcium Nitrate Anhydrous Horticultural Grade Plus is a highly pure Calcium fertilizer with a neglectable amount of ammonium which dissolves rapidly and completely. Our product is the highest concentrated product on the market. Our product is not sensitive to caking and is recommended as of early spring until fruit setting. The high level of Calcium in our formula improves the strength of cell walls. The presence of Nitrogen has a positive effect on the uptake of Calcium in the plant.

  • Improves fruit quality (less sensitive to bitter pit and blossom end rot) and shelf-life
  • Highly concentrated to reduce amount of product applied
  • Easy to handle, dissolve and apply
  • Developed for fertigation in greenhouses and for foliar application
Foliar Greenhouse fertigation
  • Low on heavy metals
  • Low on Sodium and Chloride

Hydroponics

Kg in 1.000 l stock solution CaO in kg Total N in kg N-NO3 in kg
125 41,2 21,2 21
150 49,5 25,5 25,2
175 57,7 29,7 29,4
200 66,0 34,0 33,6

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 (adult)
• As of flowering
• Until fruit filling
160 400
Banana
• As of plant establishment
• Until fruit filling
160 400
Citrus
• Spring application
• Winter application
160 400
Potato
• As of tuber setting
• Until tuber ripening
100 200
Vineyards
• As of leaf bud opening
• Until vegetative growth
80 200
Fruit bearing vegetables
• As of 4 weeks after planting
• Until fruit filling
120 300

Foliar Application

Crop Application date Min kg / ha / appl Max kg / ha / appl Conc. % (w/v))
Banana
3 - 4 applications:
• As of vegetative growth
• Until end of flowering
• 10 - 14 days interval
4 8 0.3 - 0.5
Citrus
2 applications:
• Spring application
• During fruit setting
4 8 0.5 - 1.0
Pip fruit
5 - 9 applications:
• As of fruit setting
• Until 6 weeks before harvesting
• 10 - 14 days interval
3 6 0.4 - 0.8
Tomato
3 - 4 applications:
• As of fruit setting
• Until 2 weeks before harvesting
• 10 - 14 days interval
2 3 0.3 - 0.4
Stone fruit
3 - 4 applications:
• As of fruit setting
• Until fruit ripening
• 10 - 14 days interval
2 4 0.3 - 0.6
Vineyards (adult)
2 - 3 applications:
• As of fruit setting
• Until fruit ripening
• 10 - 14 days interval
3 6 0.4 - 0.8
Melon
2 - 3 applications:
• As of fruit setting
• Until 2 weeks before harvesting
• 10 - 14 days interval
2 4 0.3 - 0.5
Potato
2 - 3 applications:
• From 20 cm height until 50% of tuber formation
• 7 - 10 days interval
2 4 0.3 - 0.5

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 Sulphate or Phosphate fertilizers. Therefore a separate tank is needed or fertilizers should be applied at different times.

Fertilizing Knowledge

Which Calcium Nitrate to use?

Calcium Nitrate is a good source of both Calcium and Nitrate. Depending on the type of application, you can choose between different grades and formulations. Van Iperen offers you the widest range of Calcium Nitrates. Let’s see which one suits your needs.

Find out more