Nutriology [photo] 


Droughts are not uncommon in Southern Africa and farmers have developed a number of strategies to mitigate their effects and increase the chance of harvesting an economic yield.

With the value of pure phosphorus in fertilizer form at above R30.00/kg and thus the value of one part per million (ppm) thereof in the field at more than R200/ha (excluding return on crop response), the South African farmer needs to be very aware of his choice of phosphorus source.