Long-Term Effects of Liming Sod-Podzolic Soil by Dolomite on the Microelement Composition of Plants <i>Hordeum</i> L.

In a long-term precision microfield experiment, the effect of liming acidic sod-podzolic light loamy soil with dolorous flour (DF, dose range 0–2.0 Ha, 9th year of the aftereffect) on the soil reaction, the content of mobile compounds Zn, Cu, Mn, Fe, Cd, Pb in the soil, and the trace element composition of barley plants (Hordeum L.) was studied. It was revealed that the most sensitive to changes in the acid-base properties of the soil were Zn and Mn, the content of which in the organs of barley plants significantly decreased linearly in the dose range of DF 0–2.0 Ha. The consequence was significant even at the minimum dose of DF (0.2 Ha). There was a tendency to a decrease in the Fe content in straw and ear of plants (r = –0.572 and –0.570, respectively) in the indicated dose range. The data obtained confirmed that precipitation can lead to an increase in the Cd content in grain crops: in the dose range of DF 0.8–2.0 Ha, the increase in the element content in the ears of plants relative to the control variant of the experiment reached 1.6–2.0 times, and in straw increased linearly in the dose range of DM 0–1.0 Ha (r = 0.945), the content of Cu and Pb in barley plants was weakly dependent on the dose of liming agent.