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Joy
Is it OK to use chelated iron as a foliar spray?

I have watered the chelated iron in to the root zone in the past. Now the new spring growth is looking quite yellow and I would like it to take effect quickly on natives and citrus. (Wrong compost and fertiliser changed the acid soil to a pH of 7.5)

Submitted: 10:57PM, 08 Oct 2011
Answer: Dear Joy,

The most effective way to apply the Yates Chelated Iron product is via the root system. Once dissolved in water, it is absorbed into the root system in available chelated form.

It could be that because your pH is slightly alkaline, the vital nutrient such as Iron may be locked in and not accessible to the plant.

If you wish to lower the pH of your soil, you can do this by applying a product called Acitone. It will correct and maintain the acidity of the soil. It contains 6% iron, 2% aluminium and 41% sulphur. The salts in Acitone (aluminium sulphate, ammonium sulphate and ferrous sulphate) replace calcium ions(which caused alkalinity) in the soil and cause an immediate increase in soil acidity).

This product is sprinkled around the root system of the plant and then watered in thoroughly.

Answered: 01:15PM, 11 Oct 2011

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