Published in Scientific Papers. Series A. Agronomy, Vol. LXIII, Issue 1
Written by Zhivko TODOROV
The study was conducted in the period 2012-2015 in the area of Training, Experimental and Implementation centre of the Department of Crop Production at the Agricultural University - Plovdiv. The experiment was based on a block method, in 4 repetitions, with the size of the experimental plot of 20 m2 with Visby hybrid. The leaf fertilizers Lactofol B, Litovit® and Fertiactyl Starter were applied. The purpose of the study was to determine the content and fatty acid composition of winter rapeseed oil sown at different sowing times and treated with several leaf fertilizers. The fat content is determined by the residual method with the Soxhlet apparatus and the fatty acids - by extraction. Depending on the variants, the crude fat content varies from 29.51 to 35.79. The amount of saturated fatty acids is relatively low from 4.85% to 6.56%. The amount of unsaturated fatty acids was highest in the Fertiactyl Starter treated variants (93.77 to 95.24%), while the lowest was in the controls (93.18 to 93.63%).
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