[Sarajevo]

*Most clay soils in this area already have too much super phosphate, which tends to stay in the soil for a long period of time. The local nursery people tell me, the best way to correct this is by adding ammonium sulphate which is 21-0-0.

If I remember my soils correctly, ammonium sulphate will sour the soil (lower the pH) and allow plants to take up the nutrients in the soil. If the pH is too high, the nutrients remain locked in the soil.

I've been using ferrous sulphate around my plants in the Hill Country for that same purpose.

[patriot08]

I’m sorry but I don’t know anything about gardening.
I just posted the tomato formula because our local weather man, Dale Nelson, is famous for his tomatoes.