compared to controls.variants of the experiment
were: V1-control unfertilized in soil, sprayed with
water, V2 – control fertilized in soil, sprayed with
water, V3-fertilized with 1% solution, V4-fertilized
with 0.5% solution, V5-fertilized with 0.25 %
solution (fertilizer with organic substances). The
variants V6, V7, V8 were fertilized with foliar
fertilizer without organic substances