Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Different sources of biostimulants influence on sugar beet leaf area index (LAI). B0—control; B1—humic acids, essential amino acids; B2—essential amino acids biopolymers, soil bacteria; B3—humic acids, essential amino acids biopolymers, soil bacteria. The figure was obtained at a level of significance α = 0.05. Different letters above the columns indicate the significance of the difference.
