Trial of Five Potato Varieties in Italy Agriculture Institute, Prever – Osasco



Solum Naturale Sumagrow inside test was conducted on potato plots planted at Cascina Buffetta, situated at 1050 m. above sea level, in the town of Angrogna, 45 km southwest of Turin.  Potatoes were planted on 6 ridges in simple row, each with length of 15 – 20 meters, leaving in each a plot a section (10%) as control on which no Solum Naturale SumaGrow inside, was applied.

All other crop operations were ordinary (no base fertilization was applied, as dealing with fertile soils, recently activated after a long cultivation rest; in absence of Colorado potato beetle no insecticides was required; Two preventive applications with Bordeaux mixture were applied against downy mildew).

Results were observed on 4 different potato cultivars, three white pastes (Agria, Monalisa and Mozart, the latter red-skinned) and one, the Bergerach, with purple flesh and skin (less productive and with smaller tubers).

No culture differences were observed during the vegetative phase, plants appeared healthy and in good condition in the test areas as well as control, with no detectable differences.  The results are reported by yields in kg. per plot linear meter.

PLOT Yield in Kg/linear meter
Test Control Variation
Plot 1 ‘ Agria 5,2 4,4 18%
Plot 2 ‘ Bergerach 2,2 1,8 22%
Plot 3 ‘ Mozart 3,2 3,0 7%
Plot 4 ‘ Mona Lisa 3,7 3,7 0%
Plot 5 ‘ Bergerach 2,4 2,0 20%


In four out of five plots, we observed good effectiveness of Solum Naturale SumaGrow inside, and only in one plot it was irrelevant.  Yield increase, per linear meter, was about 20% in three out of five plots.  The overall yield increase result was 13.4%.

The limiting plot extension does not allow us to state with certainty whether the product would be useful in all culture applications, however, the results are uniquely pointing to the direction of definite production-induced increase by the use of this product.

Angrogna, October 2013

Marco Ramotti (Teacher of di Agriculture Ecology – Agriculture Institute, Prever–Osasco)

Joussef El Kaoukabi (Internship third year student at Agriculture Institute, Prever–Osasco)

Downloadable one page report:  Italy Potato Report

Author: SumaGrow.Info


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