The following trial, carried out in Belgium by the agronomy research centre of Gembloux, assessed the performance of Humifirst® in terms of yield, quality of tubers and assimilation of nutrients by potato crops.

The results in figure 1 show that in the Merit variety, Humifirst significantly increased the number of tubers that could be commercialised by 19% and the yield by 24%.

Furthermore, this study proved that the product significantly increases the assimilation of nutrients such as: nitrogen (19%), phosphorous (30%), potassium (24%), calcium (20%), magnesium (19%), iron (33%), manganese (37%), zinc (43%) and copper (68%). The reduction in the accumulation of nitrates and the improvement in tuber formation are worth noting due to the 30% increase in the assimilation of phosphorous.


Trial conditions
• Research centre: Centre de Recherches Agronomiques de Gembloux – Belgium.
• Date: 2002.
• Location: Gembloux.
• Crop: Potatoes.
• Variety: Merit (seed potatoes).
• Parameters assessed: Yield. Number of tubers according to size. Nutrient levels in tubers.

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