APPLICATION OF LOW FREQUENCY ELECTROMAGNETIC WAVES (LFEV) AND BIOLOGICAL INPUTS IN THE PRODUCTION OF SOYBEAN

Examination of the impact of electromagnetic fields on function of biological systems is more recent direction in agriculture. Application of electromagnetic waves on seed activates the enzyme complex which results in better germination and growing. The aim of this study was to investigate the use of different groups of microorganisms and low-frequency electromagnetic waves to achieve high yields. The study was conducted at the experimental field of the Institute of Field and Vegetable Crops in Novi Sad. Valjevka soybean variety was used. Necessary nutrients were provided by use of poultry manure in amount of: control, 750 and 1300 kg.ha-1 and incorporated mixture of useful microorganisms. Sub-plots include treatment of seeds with electromagnetic waves (15 Hz frequencies of exposure for 30 minutes) and the foliar treatment of plants with mixture of beneficial microorganisms in two growth stages of development. In the stage of development R3 were defined the basic parameters of the biological value of the soil, and achieved a high yield in the harvest. The results showed significant increase of soybean yield (21.4%) in the version with electromagnetic waves. The highest yield of 3179 kg.ha^-1 was achieved in fertilization with 750 kg.ha^-1 and use of electromagnetic waves, which was also in 4.44%, or 124 kg.ha^-1 higher yield compared to the version without radiation. The results of investigated biogeny parameters of soil were compatible with soybean yield.