THE INFLUENCE OF FOLIAR FERTILIZER APPLICATION ON THE MACRO AND MICRO NUTRIENT CONTENT AND YIELD OF WHEAT PLANTS (TRITICUM AESTIVUM).

In 2022, on the chernozem from Caracal, in the wheat soils sown on 1,100 ha in the production farms of SCDA Caracal, the non-didactic department of the University of Craiova, in two locations: Caracal and Stoenești, FOLIQ 36 Nitrogen was administered to 7 wheat varieties: Glosa, Otilia, Izvor, Avenue, Gabrio, Euclide and Caro line. Leaf samples were taken from 13 physical blocks (one not treated with foliar fertilizer and 12 fertilized with foliar in two doses) in accordance with the leaf sampling instructions approved by the Analitycal Services Laboratory of Yara UK Limited-Packlington. Macro- and micro-nutrients were determined by laboratory analysis in England as follows: nitrogen (%), phosphorus (%), potassium (%), calcium (%), magnesium (%), sulphur (%), iron (ppm), zinc (ppm), manganese (ppm), boron (ppm), copper (ppm), molybdenum (ppm). Interpretation of the results showed that a dose of 1 l/ha significantly increased the zinc content, iron content and nitrogen content of the plant; significantly distinctive also the copper and sulphur content of the plant was increased; very significantly increased were the boron content and phosphorus content of the plant. The same dose also influenced yield very significantly. In general, Gabrio, Avenue and Euclide varieties showed high yields but also high nitrogen, boron, copper, calcium and phosphorus contents. [ABSTRACT FROM AUTHOR]