Effect of the Presowing Treatment of Potato Tubers with Film Coating Containing Metal Nanoparticles on Pathologies and Yield Production

Resumo

A preparation based on iron, zinc, copper, and molybdenum nanoparticles (NPs) in a polymer film formed from a mixture of Na-carboxymethylcellulose and polyethylene glycol-400 was developed for presowing pretreatment of potato tubers. Based on laboratory tests, the optimal concentrations and ratio of Fe : Zn : Cu : Mo nanoparticles were determined as 10^–6 : 10^–2 : 10^–8 : 10^–8 (%). Field tests in the integrated system of potato protection showed that the presowing treatment of potato tubers with nanoparticles Fe : Zn : Cu : Mo in the polymer film reduced the prevalence and degree of development of Alternaria blight (2.2 and 2.4 times) and late blight of potato (3.4 and 4.2 times) during the growing season and led to an increase in yield of marketable products by 11.7% compared to the control.