Published in Scientific Papers. Series A. Agronomy, Vol. LXII, Issue 2
Written by Radko HRISTOV, Tanko KOLEV
In a field experiment conducted at the Training Experimental and Implementation Base of the Agricultural University of Plovdiv in 2015-2017, the effect of leaf treatment products on some structural components in the yield of common wheat varieties: Enola, Annapurna, Ginra and Biliana was studied. The following products have been tested: alone - Plantafol (mineral leaf fertilizer) at a dose of 250 g/da and Bombardier (organic biostimulator) at a dose of 400 ml/da, as well as a combination of the two products. The treatment was carried out in the wheat tillering phase (22-25 on the Zadoks scale). The experiment has been set by the fractional parcel method in 4 repetitions with crop plot size of 15 m2. It has been found that the independent and combined application of the tested products had a positive effect on the values of the structural components in the yield (spike length, spikelet number, grain number and grain mass in the spike of common wheat).
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