Profitability of Using Herbicide and Herbicide with Biostimulators in Potato Production

The results of three years of research concerned the assessment of the profitability of table potato production depending on the control of weed infestation and the use of biostimulants: (1) control object, (2) Avatar 293ZC (clomazone + metribuzin), (3) Avatar 293ZC + biostimulator PlonoStart, (4) Avatar 293ZC + biostimulator Aminoplant, (5) Avatar 293ZC + biostimulator Agro-Sorb-Folium. The research material consisted of potato tubers of the Malaga variety coming from a field experiment carried out in 2018–2020 on medium soil, in a split-plot arrangement, as two-factorial in three replications. Mechanical and chemical treatments increased the marketable yield of tubers by an average of 37.4%, and decreased the by-yield of tubers by an average of 23.9% compared to the control object. The direct surplus per 1 ha of cultivation ranged from PLN 3521.1 in the control object (1) to PLN 11277.9 in object (5) (herbicid + Agro-Sorb Folium).