Nutritional requirements of blueberries

Blueberries nutrient requirements vary depending on the crop growth stage. Find out which nutrients are most important at different growth stages.

Roles of nutrients at key growth stages

 

Post harvest to New growth or Establishment

Post harvest to New growth or Establishment

Nitrogen - in the ammonium form,, to build reserves in the cane for recycling and subsequent growth of new leaves in the spring

Phosphorus, calcium, boron, and zinc – to maximise strong root development and support new growth

Potassium – for good plant development

 

Vegetative growth

Vegetative growth, Leaf expansion

Nitrogen - in the ammonium form, main doses are required at this stage for leaf expansion

Phosphorus - to meet uptake needs through flowering

Potassium – to promote strong leaf growth and build a strong plant development

Sulphur and magnesium - to maintain vigorous, healthy leaf growth and to improve plant supplies

Micronutrients - to ensure photosynthetic growth is not limiting

 

Flowering to fruit set

Flowering to fruit set

Potassium – peak demand for berry development and to build berry quality

Nitrogen - in the ammonium form,  in reduced amounts so as not to compromise fruit stability

Phosphorus - to meet uptake needs through flowering

Magnesium - to support new tissue development and boost fruit integrity, reduce disease and maximise shelf life

Boron - for good pollen production, seed formation and fruit set

Other micronutrients - as needed to maintain growth

 

Fruiting to maturity

Fruiting to maturity

Potassium – to maximise fruit quality, particularly TSS, acidity and taste.

Phosphorus - to up levels being redistributed to the fruit

Nitrogen - in the ammonium form, limited quantities to balance other nutrients - excessive N at this stage can spoil fruit, but too little N reduces fruit size

Boron and Calcium - for fruit strength

Fruit agronomy advice

Blueberry fertigation and nutrition advice
Blueberry fertigation and nutrition advice

Looking for even more information ...

If you would like more information on blueberry nutrition and would like to speak to one of our fruit specialists or area managers please find all their contact details here

Contact your local Yara area manager or agronomist

 

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