Effect of complex liquid fertilizers on winter wheat productivity

The experiment was conducted in 2014-2015 year at he University of Aleksandras Stulginskis in Experimental Station of lacustrin light loam clay Calc (ar) i- Endohypogleyic Luvisol in order to assess the effectiveness of liquid Zinc fertilizers with amino acid and organic extract and liquid complex fertilizers with seaweed extract on winter wheat yield and qualitative indicator. The winter wheat variety ‘Skagen’ was selected for testing. It was found out that the most effective norm to fertilize winter wheat with liquid complex fertilizers with seaweed extract is 1.2 l ha-1 . Most appropriate norm of fertilization with liquid zinc fertilizers with amino acid and organic extract in tillering stage is 3.0 kg ha-1 and in booting stage – 1.5 + 1.5 kg ha-1 norm . A strong linear correlation was established between winter wheat productivity (t ha-1) and norm of liquid zinc fertilizers with amino acid and organic extract (kg ha-1)Vytauto Didžiojo universitetasŽemės ūkio akademij