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← Hydroponic School Growing Hydroponic Tomatoes: A South African Grower's Course

Test your water before anything else
South African water problems: salinity, boron, chloramine and hard water
Bicarbonate and acid: how much to add, and handling acid safely
What a tomato needs: the major and minor nutrients
The tomato recipe: the Wageningen standard explained
Mixing A and B stock tanks: a fully worked example (clean water and hard water)
Ready-mixed fertilisers and their limits
EC and pH by growth stage, and the units trap (mS/m, mS/cm, µS/cm and ppm)
Deficiencies, toxicities and blossom end rot

Water and nutrition

Bicarbonate and acid: how much to add, and handling acid safely

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