Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 1
Written by Lorena ADAM, Manuela HERMEZIU, Viorel ION
The application of biostimulators to plants leads to the accumulation of a higher content of nutrients in their tissue and to positive metabolic changes improving plant nutrient use efficiency and tolerance to stress factors. The aim of this paper is to present the effects of some biostimulators at potato crop according to variety and plant density. The research was conducted in the years 2023 and 2024 at the National lnstitute of Research and Development for Potato and Sugar Beet Brasov, Romania. The experimental variants were the following: potato variety (Darilena; Ultra); plant density (45.000 plants/ha; 53.000 plants/ha); Biostimulator product (no biostimulator - control variant; Genaktis 1; Irys; Terram Number One; Wuxal Macromix). Compared to control (untreated) variant, all the used biostimulator products determined an increased number of stems per hill, an increased aerial part weight, and an increased tuber yield regardless the potato variety, plant density and climatic conditions of the year. The tuber yield increase determined by using biostimulators is higher in better climatic conditions and at higher plant density. Having all these into account, the inclusion of the biostimulators in the potato crop technology can be considered as a good strategy.
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