Wheat productivity in different tillage systems after using biostimulants and their mixtures

Policies to reduce the use of mineral fertilisers and chemical pesticides have spurred research into biological approaches to soil and plant protection and biostimulation. The two-factorial field experiment was carried out on the crops of spring and winter wheat at the Experimental Station of Vytautas Magnus University Agriculture Academy, Lithuania, from 2018 to 2020. The aim of the experiment was to evaluate the influence of biostimulants and their mixtures in different soil tillage systems on the productivity of spring and winter wheat ( Triticum aestivum L.). Biostimulants were more effective to stimulate plant development at the no-till + catch crop (NT + CC) treatment. The effect became more evident in the third year of the experiment. The biostimulant with Trichoderma sp. and the biostimulant with Azotobacter sp. and mixtures with them increased grain yield when NT + CC technology was used. Only mixtures of biostimulants with Trichoderma sp. and with Azotobacter sp. increased yield when applying PT technology. Although biostimulants do not always increase the yield of agricultural crops, their application is more sustainable agricultural practice.