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Abstract
The research was conducted during 2015 - 2016 in the experimental field of the Department of Plant Production in Agriculture Faculty at Trakia University, Stara Zagora, Bulgaria. The aim of this study is to investigate the effect of leaf fertilizer on the productivity of common wheat. In this study has examined the nutritional value of two common wheat: Diamond (by the varietal list of Bulgaria) and Ingenio (Syngenta). A comparative analysis of the results obtained from the treatment of varieties of common wheat with leaf fertilizers was made. Energetic and protein nutrition of ruminant wheat was evaluated in 1 kg of dry matter. Protein value of feed is extremely important for their nutritional value. The protein value of the feed is related to the bioavailability of the protein contained therein. The boundaries in which the protein values of the various feeding variants with different leaf fertilizers. The crude protein content ranges from 160.3 to 167.0 g/kg of dry matter (DM) for the Diamond variety and from 144.4 to 151.8 g/kg of dry matter Ingenio variety. On average, the content of raw protein in Diamond variety is higher by 10.7% of the found content of Ingenio variety.