The Bio Gro sales and technical support team are experienced professionals who are thoroughly familiar with the exacting requirements of commercial horticulture.  We measure ourselves on your growing success, therefore want to facilitate your access to our knowledge to better support you.  We offer a full range of technical support services in association with leading soil scientists and microbiologists, and only use fully accredited laboratories for complete soil analysis.

How we can help you

Analytical Testing
  • Growing media
  • Plant tissue
  • Water
  • Fertiliser solution
  • Pathology
Onsite Consultation
  • Technical support
  • Crop assistance
  • Analyse interpretation

Knowledge Centre

Closed Watering Systems
Closed Watering Systems

Whether it is because of the ever-rising cost of purchased water, an absolute shortage of water caused by drought, or the need to prevent pollution of nearby waterways with nutrients, many nurseries now recycle much of their runoff water.  In this article, we address the benefits and potential problems you may encounter from utilising runoff…

Urea: Friend of Foe?
Urea: Friend of Foe?

Once upon a time, ammonium nitrate was readily available to nurseries.  This ‘all nitrogen’ fertiliser was useful for quickly supplying some additional nitrogen, or for inclusion within fertigation solutions as a major source of nitrogen.  A main advantage of ammonium nitrate over other nitrogenous fertilisers is its equal proportions of the ammonium and nitrate forms of soluble…

Liquid feeds: buy or make your own?
Liquid feeds: buy or make your own?

By far the easiest way of preparing a liquid feed is to buy a package of mixed nutrients with the required proportions of major nutrients, dissolve it in water in your stock tank and apply it through your injector and irrigation system. However, this method is far more expensive than if you made up your stock…

How to use phosphorus supply to control growth rate
How to use phosphorus supply to control growth rate

When purchasing a potting medium from the majority of Australian producers, the formulation will contain adequate supplies of most essential nutrients.  These being: Trace elements – iron, manganese, zinc, copper, boron, molybdenum (and nickel as needed) Secondary nutrients – calcium and magnesium from the limestone and dolomite added to adjust pH, and sulphur (and more calcium)…

Calcium – an often overlooked nutrient
Calcium – an often overlooked nutrient

Accounts of fertilisers typically list their ‘NPK’ contents – the concentrations of nitrogen (N), phosphorus (P) and potassium (K). Such accounts might also include reference to trace elements being added. However, rarely do these accounts mention anything regarding the three secondary nutrients – sulphur (S), calcium (Ca) and magnesium (Mg). All three are just as essential…