Irish potatoes are of great economic and dietary value as a food-source worldwide ranking as the third most important food crop after rice and wheat. Potatoes require high levels of fertilizer to produce high yields with marketable quality. However, in some countries fertilizer is very difficult to obtain and very expensive. Using SumaGrow would greatly reduce this need for, and cost of, fertilizers. With SumaGrow, it has been shown that equivalent yields and growth can be obtained at reduced fertilizer rates when compared to full recommended fertilizer treatments.
In almost all trials, SumaGrow actually increases the yield compared to the existing grower standard — what the farmer is obtaining now using the best available technologies without SumaGrow. In this particular trial, growing Red LaSoda Irish potatoes, “combined yields from the grading process at ten days following harvest showed the same results where the SumaGrow treatments were as much as 2,509 Lbs/acre greater than the 100% fertilizer treatment without SumaGrow.” This equates to a 16% yield increase.
Additionally, “at harvest criteria did show the strengths of the SumaGrow product in reducing fertilizer rates, hence reducing input costs and minimizing environmental hardships.” Better plant health and vigor, as well as higher brix levels were also noted.
Here is the link to a copy of the study report: Mississippi State U — Irish Potato