Published in Scientific Papers. Series A. Agronomy, Vol. LXVII, Issue 1
Written by Florian VELICU, Viorel ION
Foliar treatments are an important tool to enhance productivity of the maize plants and their ability to support stress factors, especially in the present when climate change has become the biggest global challenge to agriculture and food production. These treatments can be done with foliar fertilizers, biostimulator products or by using fungicide products with a stay-green effect on maize plants. Starting from these realities, the aim of this paper is to present the effect of different foliar treatments (foliar fertilisers, biostimulator products and the fungicide Retengo with the stay green effect) on maize under the specific growing conditions from South Romania. In this respect, field research was performed in the specific growing conditions of South Romania (44°12'55''N, 26°51'51''E) under rainfed conditions in the years 2022 and 2023. The experimental variants were represented by two foliar fertilizers (Microfert-U and Kingfol Zn), two biostimulator products (Terra Sorb and Atonik), and one fungicide (Rentengo) with a stay-green effect. The obtained results brought attention to the positive effects of fungicide Retengo as a fungicide with AgCelence effect to the maize grain yield. Among the tested biostimulators and foliar fertilizers, the highest grain yield were obtained when there was applied the biostimulator Atonik and the foliar fertilizer Kingfol Zn, Atonik being more effective in the less favourable climatic conditions and Kingfol Zn in the more favourable climatic conditions.
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