EM Mapping
“EM Mapping provides a soil profile that is supported by a soil test to verify any imbalance, in our case it was sodic issues, which required heavier gypsum application in certain rows than the rest of the paddock.” Any practice change for growers has to have business benefits, as well as environmental benefits. Anecdotally, Walter knew he wasn’t getting results from conventional application rates, wasting time and money. Using prescription rates and concentrating gypsum in the sodic patches via GPS technology, he could see the cane improving.