Keywords: productivity, plant nutrition, atmospheric precipitation, air temperature, cause­and­effect interactions, reference indicators of the mathematical model of productivit

// Мелиорация.— 2023. – №3(105) – С 22–35

Mathematical modeling of the dependence of sugar beet yield on the level of nutrition and moisture content was performed on the basis of the physical principle of cause-andeffect interactions (causal interaction) in a closed physical system using data from variety testing stations (Kobrin, Molodechno, Nesvizh) and a variety testing site (Shchuchin). The reference indicators of the mathematical model of the dependence of sugar beet yield on nutrition factors and moisture supply have been established. The necessity of supplementing the method of variety testing of agricultural crops with the control of atmospheric precipitation and air temperatures directly in the territory of cultivation of crops is noted.