Exploring Potassium Deficiencies in the Northern Pampas of Argentina

In the 2012/13 season, weather conditions were favorable for spring-summer crops, with rainfall exceeding the average while high temperature records that occurred in a few months, did not affect the crop reproductive stages.
Potassium response was observed in two of the five field trials. At teh responsive sites, soil test K was of 0.55 and 0.56 meq / 100g and K saturation in the exchange complex of 4.9 and 5% respectively.
See the full report at Informe campaña 2012-2013 Fontanetto-Gambaudo.pdf