Diagnostic of the winter triticale for sulfur and magnesium nutrition on podzoluvisol loamy soil

Abstract

The results of field experiments on specially prepared 4 levels of exchangeable magnesium content in the podzoluvisol loamy soil in a wide range of (Mg 45–240 mg/ kg) are presented. The parameters of soil and plant diagnostic for sulfur and magnesium supply of winter triticale had been developed. The range of the optimal exchangeable magnesium content Mg 140–155 mg/kg of soil and the equivalent ratio of cations (Ca²⁺ : Mg²⁺ = 4–5 and K⁺ : Mg²⁺ = 0,6–0,7) had been found. The obtained results could be used for the choice of the appropriate fields for triticale grain yield of 70 t/ha and more, as well as to identify the need for foliar spray of plants with solution of MgSO₄ ∙ 7H₂O according to the analysis of soils and plants in the early stages of their development.