Chlorosis Solved

In years past some trees have shown symptoms of chlorosis, appearing like they’re not getting enough nitrogen.  Leaves would be white and get really burnt in our hot sun, and trees like the peaches and cherries would really get fried and burn a lot of leaves. 

I tested the soil and there’s plenty of nitrogen available, but the high alkali content and low iron was keeping the plants from getting it, so this winter I applied a whole lot of Ironite throughout the whole orchard. 

There has been a dramatic difference, with no white leaves and not nearly as much burning, even through our latest heat wave of 107.  I have seen no adverse effects from having too much iron, and so if you have high alkali soil, feel free to apply it heavily, watering it in well.  Make sure you don’t get any granuals on the sidewalk though, as when they get wet they’ll stain it with rust from their iron content.

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3 Responses

  1. Whats another name for ironite? We don’t have anything called that here.

    Would using acid based fertiliser like sulphate of ammonia or sulphur to lower the pH ie make it more acid work as well?

  2. Its just basically iron, 1-0-1. It will rust and stain the sidewalk.

    We try mixing in soil sulphur with the ironite when tilling the ground, but it is very difficult to lower the pH; we have to really work at it to get the blueberries healty.

  3. I’ve found mixing peat moss and elemental sulfur with my standard mulch can help lowering the pH of my soil. I top dress the soil with it just before it rains. Takes a little while to have an effect.

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